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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

---------------

FORM 10-K

(Mark One)
|X| ANNUAL REPORT PURSUANT TO SECTION B OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the fiscal year ended December 31, 2003

OR

|_| TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
OF 1934

Commission File Number 0-10238
U.S. ENERGY SYSTEMS, INC.
(Exact name of Registrant as specified its charter)

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Delaware 52-1216347
(State of Incorporation) (I.R.S. Employer
Identification Number)

One North Lexington Avenue
White Plains, NY 10601 (914) 993-6443
(Address of principal executive offices) (Registrant's telephone number, including area code)


Securities registered pursuant to Section 12(b) of the Act: None.
Securities Registered pursuant to Section 12(g) of the Act:

Title of Each Class
-------------------
Common Stock, par value $.01 per share

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for a shorter period that the registrant
was required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes |X| No |_|

Indicate by check mark if disclosure of delinquent filers in response to
Item 405 of Regulation S-K is not contained herein, and will not be contained,
to the best of the registrant's knowledge, in definitive proxy or information
statement incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K |_|.

Indicate by check mark whether the registrant is an accelerated filer (as
defined in Rule 12b-2 of the Act): Yes |_| No |X|

The aggregate market value of the voting and non-voting common equity held
by non-affiliates computed by reference last sales price of the Common Stock as
of June 30, 2003 (i.e. $1.40 per share) was approximately $16,738,000.

As of March 26, 2004, the number of outstanding shares of the registrant's
Common Stock was 11,950,524.

Documents Incorporated by Reference: Items 10, 11, 12, 13 and 14 hereof
are incorporated by reference from the Registrant's Proxy Statement to be filed
with the SEC by April 29, 2004.

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This Form 10-K contains certain "forward-looking statements" which represent our
expectations or beliefs, including, but not limited to, statements concerning
industry performance and our operations, performance, financial condition,
growth and strategies. For this purpose, any statements contained in this Form
10-K that are not statements of historical fact may be deemed to be
forward-looking statements. Without limiting the generality of the foregoing,
words such as "may," "will," "expect," "believe," "anticipate," "intend,"
"could," "estimate" or "continue" or the negative or other variations thereof or
comparable terminology are intended to identify forward-looking statements.
These statements by their nature involve substantial risks and uncertainties,
certain of which are beyond our control, and actual results may differ
materially depending on a variety of important factors which are noted herein,
including but not limited to the potential impact of competition, changes in
local or regional economic conditions, our ability to continue our growth
strategy, dependence on management and key personnel, supervision and changes in
the capital markets regulation issues, operational issues, resource issues, and
our ability to obtain acceptable financing to fund our growth strategy. This
10-K also contains a discussion of certain factors that may impact our
activities. See "Item 7. Management's Discussion and Analysis of Financial
Condition and Results of Operations." All denominations expressed herein are
U.S. dollars unless stated otherwise.

PART I

ITEM 1. DESCRIPTION OF BUSINESS

THE COMPANY

OVERVIEW AND RECENT DEVELOPMENTS

U.S. Energy Systems, Inc. (the "Company" or "We"), based in White Plains, NY, is
a customer-focused provider of thermal and electrical energy and energy
outsourcing. The Company brings high efficiency standards and proven technology
to the marketplace, resulting in lower costs for the customer and a cleaner
environment. Our energy services involve the management, development, operation
and ownership of small-to-medium-sized energy facilities typically located in
close proximity to our customers. Our customers include large retail energy
consumers, such as industrial and commercial concerns, and local wholesale
energy suppliers, such as utilities and marketers. The energy generation
facilities in our portfolio use proven technology, such as combined
heat-and-power and reciprocating engines, and clean renewable fuels, such as
biogas and biomass fuels.

As of December 31, 2003 the Company owned and/or financed 34 green energy,
district energy and cogeneration projects in North America and Europe with a
total of 262MW of thermal and electric generation capacity.

The Company pursued strategic alternatives in 2003 to become more competitive
with its peers and to maximize the value of its underlying assets. During the
past two years, the Company chose to exit or cede control of certain businesses
which were not compatible with its business plan or where it did not have a
competitive advantage. The Company also pursued alternatives to recapitalize its
balance sheet and raise capital to support growth in its core business.

During 2003, the Company sponsored the initial public offering ("IPO") of a
Canadian Equity Income Fund, Countryside Power Income Fund ("Countryside Fund")
an unincorporated, open-ended limited purpose mutual fund trust formed under the
laws of Ontario, Canada. In March 2004, the Countryside Fund issued and sold
trust units totaling approximately Cdn $149 million in the IPO and arranged a
credit facility of Cdn $35 million from a syndicate of Canadian banks ("Credit
Facility.") The Countryside Fund IPO and related credit facility closed on April
8, 2004. The Countryside Fund is listed on the Toronto Stock Exchange under the
stock ticker symbol COU.UN. On closing, the Countryside Fund, using a portion of
proceeds of the IPO and a Cdn $30 million drawn down from the Credit Facility,
acquired USE Canada Holdings Corp. ("USE Canada Holdings"), the parent of USE
Canada Energy Corp. ("USE Canada") from the Company for approximately $15.2
million. USE Canada owns district energy systems located in Charlottetown,
Prince Edward Island and London, Ontario. With the remainder of the IPO
proceeds, the Countryside Fund acquired the existing long-term project debt of
US Energy Biogas Corp., the Company's 54.26% subsidiary ("USEB"), and made
additional debt and royalty investments in USEB. Such debt acquisitions and
additional investments totaled in excess of $86 million. The Countryside Fund
and USEB amended the terms of the acquired debt to reflect, among other things,
additional loan advances.


2


The Countryside Fund transaction provided approximately $12 million of
additional working capital, growth capital and reserves to USEB and more than
$20 million in additional cash proceeds to the Company.

Additionally, in conjunction with the Countryside Fund IPO, the Company entered
into a development agreement with a subsidiary of the Countryside Fund and
Cinergy Solutions, Inc. ("Cinergy Solutions"), a subsidiary of Cinergy Corp.
(NYSE:CIN) an integrated electric gas and utility company respecting potential
development initiatives. USEB also entered into an improvement agreement with a
subsidiary of the Countryside Fund respecting potential investment by the
Countryside Fund in certain USEB development projects which are not covered by
the development agreement.

In 2003, the Company sold its 95% membership interest in US Energy Geothermal
LLC ("Geothermal, LLC") for approximately $1.0 million in cash and its interest
in Marathon Capital LLC for approximately $100,000 in cash. In addition, during
2003 the Company reduced its interest in Scandinavian Energy Finance, Limited
("SEFL"), a joint venture we formed with EIC Electricity SA ("EIC"), a Swiss
investment company specializing in energy investments, from 51% to 32% as a
result of sale of a 2% interest and additional equity investment by EIC in SEFL.
SEFL had financed a Swedish energy group, EnergiSystem Sverige AB
("EnergiSystem"). In December 2003 SEFL exercised its option to acquire 90%
ownership of EnergiSystem. SEFL will now be managed and controlled by EIC which
has greater resources in that region to oversee commercial and operational
functions. The Company intends, in light of the continuing uncertainty in SEFL
and Energisystem to monitor and evaluate its $7.5 million investment in SEFL.
(See Item 3 "Legal Proceedings" and Item 7 "Management's Discussion and Analysis
of Financial Condition and Results of Operation, Risk Factors - International
Investments.")

In the fiscal year ended 2003, the Company's total assets decreased to
approximately $172 million, down almost 22% from the previous year, resulting
mainly from the deconsolidation of SEFL. Revenues in 2003 decreased to
approximately $25 million, as a result of USE Canada Energy being accounted for
as a discontinued operation in connection with its anticipated sale to the
Countryside Fund, and as a result of the deconsolidation of SEFL and Geothermal,
LLC.

Our management team has a track record in the development, construction and
operation of combined heat and power ("CHP") plants and renewable energy plants.
One primary goal of our management team is to continue working successfully, as
it has in previous years, in developing energy projects with our strategic
partners, including the Countryside Fund and Cinergy Solutions. In addition to
our strategic joint venture with Cinergy Solutions, we recently developed
relationships with certain financial companies that specialize in private
equity, debt and mezzanine-style investments in the power and energy
infrastructure industries.

THE MARKET

The market for energy outsourcing has been rapidly emerging during the last
several years. Deregulation of the electricity markets has allowed energy
consumers to select new providers. Increasing competitive pressures have caused
large energy consumers to seek ways to reduce costs, including the significant
costs of energy. Energy outsourcing has emerged as a viable option for energy
consumers to reduce costs and improve reliability.

Employing energy generation facilities in close proximity to the customer often
provides those customers with superior economic and operational benefits that
include lower operating and capital costs, improved reliability and enhanced
management focus. At the same time, outsourcing allows the provider to employ
the use of CHP and local renewable energy sources, which improve operational
efficiency and the environment while enhancing customer value.

We define our energy outsourcing opportunities to include: (i) district energy
systems, (ii) CHP projects, and (iii) renewable energy projects, which provide
energy to commercial, institutional or industrial customers. There are current
opportunities to buy energy outsourcing projects, which are being divested by
large integrated utilities and independent power producers. We also believe
there are opportunities to develop new greenfield industrial cogeneration and
renewable energy projects such as biogas-to-energy projects. We believe that
many of these energy projects will present a compelling business opportunity for
the Company given our relevant experience, strategic partners and core skill
sets. The market potential for retrofitting and upgrading existing CHP plants in
the size range up to 100 MW exceeds 42,000 MW in the United States alone,
according to an independent market study. In addition, it is expected that the
market


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for renewable energy generation in the United States will grow to almost 450
billion kilowatt hours and a gross capacity of over 105 gigawatts by 2020,
according to a report issued by the Energy Information Agency in 2003. Similar
market potential exists in the rest of North America, where deregulation,
government-mandated renewable resource standards, increasing fossil fuel prices
and cost focus, as well as environmental awareness are motivating factors for
end users to employ energy outsourcing and renewable fuels.

In our target markets, governmental policies and new environmental standards
provide the impetus for continued growth of outsourcing and renewable energy
markets. While a significant market has already been established, it remains a
small fraction of the viable potential of the rapidly growing market.

STRATEGY

Business Strategy:

Our business strategy is to become a leading provider of energy outsourcing
services to the industrial, commercial and institutional marketplace and to
become a leader in the development and use of renewable energy sources. In the
near term, we intend to increase shareholder value through improving operating
performance of our existing biogas-to-energy operations and expanding their
generation capacity. Further, we will continue to look selectively at acquiring
or developing renewable energy projects, with a primary focus on technologies
where we have specific expertise such as landfill-gas-to-energy and
biomass-to-energy. Our strategy also involves acquiring under-performing or
undervalued energy assets and then combining our operational skills to drive
efficiency gains through proven technologies, thereby reducing costs for our
customers. The Company intends to leverage its strategic relationships to
advance its business goals with a primary focus in its key target market of
North America. We have identified the market segments that are consistent with
our overall strategy. These targeted markets have a smaller size range per
project and require special skill sets that should have limited competition for
acquiring or managing those assets in the near term.

The Company has a growth-oriented, risk-mitigated business development strategy.
We are expanding our customer base and energy generation capacity through
relationships based on long-term contracts, whereby each new customer and/or
each new facility provides for additional long-term operations, revenues and
cash flow. We will provide our customers with high value, custom-tailored energy
solutions, which will increase the customer's industry competitiveness through
higher operating efficiency, reliability and reduced capital and fuel costs. The
long-term agreements with our customers generally seek to provide superior value
and stability for our customers, while providing predictable returns for our
shareholders.

To enhance our strategy, we have established strategic relationships with the
Countryside Fund, Cinergy Solutions and certain financial firms with specialized
industry knowledge, with which we are pursuing development and growth
opportunities. Through these relationships, we expect to leverage our resources
and increase our market visibility and probability of success.

Financial Strategy

Our financial strategy is to employ proven financing techniques in the bank and
capital markets to expand our business. Our risk management strategy aims to
hedge financial risk with (i) long-term customer contracts that generally
provide stable cash flow to cover debt service costs, (ii) utilization of fixed
rate funding or financial hedges to mitigate rate risk and (iii) utilization of
project related debt that is nonrecourse to the Company. The availability of
capital at attractive terms will be a key requirement to enable us to meet our
strategic objectives. Another important goal of management will be to maintain
and expand relationships with key financial partners such as the Countryside
Fund and explore other alternatives for raising capital and/or monetary assets
in the future. From time to time, we may seek to obtain financing, including
mezzanine or equity capital, when circumstances warrant. In all respects, we
will strive to maintain ample liquidity to meet our operating requirements and
to fund our growth.

COMPETITION

The energy generation industry is characterized by intense competition, and we
encounter competition from utilities, industrial companies and other energy
producers in our business. However, the retail energy market targeted by the
Company is generally outside the main focus of larger energy generating


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competitors.

We are competing for development and acquisition opportunities with various
companies, some of which may have greater access to resources and capital, as
well as with our potential customers' current in-house alternatives. However,
many of our competitors are subsidiaries of larger firms, with a core focus on
other markets, and in some cases, those firms are exiting certain non-core
business lines. This includes integrated utility companies, merchant energy
companies and independent power producers many of which have subsidiaries with
which we compete but which are mainly engaged in large-scale generation,
transmission or distribution of electricity for the regulated or wholesale
merchant markets. The markets for large-scale production of electricity or other
energy are driven by fundamentally different factors and requirements than the
market for customer tailored energy services from distributed generation, such
as CHP and renewable fuels. We believe that our experience and focus on mainly
retail energy outsourcing utilizing CHP and renewable fuels gives the Company a
competitive advantage.

Competition is a lesser factor for our biogas-to-energy operations since,
generally, they are not subject to direct competition. Apart from a few large
companies operating biogas projects, the U.S. biogas industry is highly
fragmented.

With management's track record in energy outsourcing and its ability to develop
long-term customer relationships, the Company believes it has a competitive
advantage in a rapidly growing niche market serving companies seeking clean,
reliable and low cost energy.

DESCRIPTION OF OPERATIONS AND FACILITIES

The Company's principal operations include the following:

US Energy Biogas Corp.

On May 11, 2001, the Company, together with Cinergy Energy Solutions Inc
("Cinergy Energy Solutions"), through a merger, acquired Zahren Alternative
Power Corporation ("Zapco"), which was renamed US Energy Biogas Corporation
("USEB"). The Company owns 54.26% and Cinergy Energy Solutions owns 45.74% of
USEB.

USEB owns and operates 22 biogas projects ("Biogas Projects"). The biogas
projects currently have approximately 51MW of electric generation capacity.
Eighteen of the 22 Biogas Projects have contracts with local electric utilities
for the sale of electrical output. The Brookhaven project leases electric
generation equipment to a third party, which in turn has a contract to sell the
output to an electric utility. The remaining three Biogas Projects sell boiler
fuel under long-term arrangements with creditworthy off-takers. All of the
generation projects are qualifying facilities ("QF") under the Public Utility
Regulatory Act of 1978 ("PURPA").

The following table lists selected information about each facility owned and
operated by USEB in 2003 with the exception of Readville and Oyster Bay which
were closed in 2003, and Smithtown, which is slated for closure.

Project State Project Output MW Off-Taker(s)
------- ----- -------------- -- ------------

Countryside IL Electricity 8.0 Commonwealth Edison
Dolton IL Electricity 5.0 Commonwealth Edison
Dixon Lee IL Electricity 4.0 Commonwealth Edison
Morris IL Electricity 4.0 Commonwealth Edison


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Roxanna IL Electricity 4.0 Illinois Power
Upper Rock IL Electricity 4.0 MidAmerican Energy
SPSA I VA Electricity 3.3 Virginia Power
122nd Street IL Electricity 3.0 Commonwealth Edison
Brickyard IL Electricity 3.0 Illinois Power
Hamms NJ Electricity 1.2 GPU/First Energy
Manchester NH Electricity 1.2 New Hampshire Public
Service
Oceanside NY Electricity 1.2 Long Island Power
Authority
Streator IL Electricity 1.0 Commonwealth Edison
Willow Ranch IL Electricity 1.0 Commonwealth Edison
Amity PA Electricity 1.0 Penn Power & Light
Barre MA Electricity 1.0 USGen New England
Burlington VT Electricity 0.7 Burlington Electric
Dept.
Onondaga NY Electricity 0.6 Niagara Mohawk
Cape May NJ Boiler Fuel N/A State of New Jersey
SPSA II VA Boiler Fuel N/A CIBA Specialty Chemical
Tucson AZ Boiler Fuel N/A Tucson Electric Power
Brookhaven NY Electricity 4.0 Wehran Energy Corp.

In addition, USEB receives payments under notes issued by subsidiaries of
Cinergy and Arthur J. Gallagher & Co. (NYSE: AJG) ("Gasco Notes") in connection
with the sale of its ownership interests in 16 Gascos that qualify for Section
29 tax credits. These payments are scheduled to end in 2007. The loss of this
revenue stream in 2007 is expected to be primarily offset by increased
electricity and boiler fuel production volumes from planned expansions of the
Biogas Projects.

The Biogas Projects are located across nine states in the U.S. with a majority
of power sales to electric utilities in the State of Illinois. The Biogas
Projects are able to capitalize on regional opportunities as they relate to the
sale of electricity and government incentive programs.

Thirteen of the 22 Biogas Projects are located at landfill sites that continue
to accept waste, and, as such, biogas production is expected to increase until
shortly after the landfill sites close. As a result, we expect that increases in
biogas production will more than offset declines at those Biogas Projects
located at closed landfill sites, resulting in a net expansion of the Biogas
Projects' current electricity generation capacity.

Commonwealth Edison accounted for approximately 35.5% of our consolidated
revenues in fiscal year 2003.

Commercial Structure of the Biogas Projects

The Biogas Projects may incorporate up to three separate legal entities as
illustrated in the following diagram and described below:


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Typical Biogas Project Commercial Structure

Genco
-----------------
Biogas Generation Electricity
/ of electricity \
/ ----------------- \
/ \
Gasco / \
---------------- ----------------------
Collection Utility or Industrial
of biogas \ Purchasers
---------------- \ Transco ----------------------
\ /
\ /
------------------ /
Biogas Transportation Biogas
of biogas
------------------

Gasco

Gascos are the legal entities that typically own the biogas extraction rights
and collection systems and collect and sell the biogas to an electric generating
facility ("Genco") and/or a gas transmission facility ("Transco"), as the case
may be, under long-term, fixed-rate contracts. Gascos are typically structured
as limited partnerships whereby the beneficiaries of the Section 29 tax credits
own a 99% limited partnership interest in the Gasco and USEB, directly or
through certain of its subsidiaries, owns a 1% general partnership interest or
less in the Gasco. The limited partnership interests are held by investment
grade third parties. In the cases of the Roxanna and Brookhaven projects, USEB
does not own an interest in the relevant Gascos.

The rate received for the biogas that the Gascos sell to the Gencos and/or
Transcos is generally US$0.47/MMBtu. The Gencos typically provide the Gascos
with a portion of the electricity they generate to power their gas collection
systems and, in addition, provide operating and maintenance services to the
Gascos. The total revenues received by the Gascos for the sale of biogas
generally equates to the total cost of the Gencos providing the electricity and
operating and maintenance services to the Gascos.

USEB is negotiating to obtain the right to purchase the limited partnership
interests in the Gascos from their current holders upon expiration of the
Section 29 tax credits on December 31, 2007. In the event USEB does not acquire
the limited partnership interests, the existing project agreements generally
provide that: (i) the Gencos shall retain the right to purchase gas from the
Gascos under long-term gas purchase contracts at prices equal to or lower than
the prices currently in effect; and (ii) the Gencos shall continue to perform
operation and maintenance services for the Gascos under long-term agreements and
the compensation received by the Gencos should not be affected by the expiration
of the tax credits.

Genco

Gencos are the legal entities that typically own the power generating equipment,
purchase the biogas from a Gasco and sell the electricity it generates to an
electric utility or industrial user under long-term contracts. The Biogas
Projects incorporate 19 Gencos that are wholly-owned subsidiaries of USEB,
except for the Illinois-based projects, which are owned, indirectly, 50% by USEB
and 50% by AJG Financial Services, Inc. ("AJG Financial") a subsidiary of Arthur
J. Gallagher & Co. Gencos typically lease a portion of a landfill site from an
independent third party landfill owner.

Transco

Transcos are the legal entities that typically own the gas transportation
equipment and purchase biogas from a Gasco to transport and sell to a third
party as boiler fuel under long-term contracts. The Biogas Projects incorporate
three Transcos which are all wholly-owned subsidiaries of USEB.


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Pricing Structure

Illinois QSWEF Pricing Structure Under The ICC Rate Incentive Program

The State of Illinois, pursuant to the Illinois Public Utility Act and the
Illinois Local Solid Waste Disposal Acts established a rate incentive program
("Rate Incentive Program") respecting the sale of electricity by QSWEF's (as
defined below) to encourage, among other things, the proper disposal of waste
and, where economically and technically feasible, the efficient use of the
products or by-products generated as a result of its disposal. The
Illinois-based Biogas Projects all qualify as qualified solid waste energy
facilities ("QSWEFs") and, as such, are participants in the Rate Incentive
Program, as implemented by the Illinois Commerce Commission ("ICC"). Under the
Rate Incentive Program, QSWEFs sell electricity at the Gross Contract Rate for
the first 10 years of their commercial operation. The Gross Contract Rate is
calculated annually by the electric utility and equals the average amount per
kilowatt hour ("kWh") paid by local government entities for electricity in the
jurisdiction in which the QSWEF is located (with certain exceptions). The
difference between the Gross Contract Rate and the electric utility's Avoided
Cost equals the QSWEF's incentive ("Incentive"). Avoided Cost equals the
incremental expense that the electric utility would incur to either generate or
purchase from an outside source, electricity, capacity or both. A QSWEF must
begin to repay the incentive no later than the earlier of the date the QSWEF has
paid or otherwise satisfied in full the capital costs or indebtedness incurred
in developing its facility and 10 years after the date the QSWEF began
commercial operation. The Incentive must be entirely repaid by the QSWEF upon
the earlier of 20 years after the QSWEF began commercial operation and the end
of the QSWEF's actual useful life. The repayment obligation to the State of
Illinois is equal to the amount of the Incentive received, without interest, and
is required to be made under a schedule to be determined by the ICC based on the
manner in which the local utility claimed the relevant tax credits.

To ensure sufficient funds exist for reimbursement of the incentive, each
Illinois-based Biogas Project agreed, under the orders that the ICC issued to
establish and/or confirm its status as a QSWEF (the "ICC Orders"), to establish
an account ("ICC Reimbursement Account") which it funds with a portion of the
amount of the incentive it receives (US 2.4 cents/kWh in the example below). The
ICC Orders have no specific requirements for the amount of funds that need to be
deposited in the ICC Reimbursement Account for repayment of the incentive or for
the type of investments that are appropriate for the ICC Reimbursement Account.

The following is a breakdown of a typical Illinois-based Biogas Project's rate
components for illustrative purposes:

Avoided Cost US 3.1 cents/kWh
Add: Rate Incentive (Premium) US 4.7 cents/kWh
----------------

Gross Contract Rate (Retail Rate) US 7.8 cents/kWh
Less: ICC Reimbursement Account Deposit US 2.4 cents/kWh
----------------

Net Effective Rate US 5.4 cents/kWh
================

Although the Rate Incentive Program for each of the Illinois-based Biogas
Projects terminates 10 years after the commencement of commercial operation, the
local electric utility is obligated to purchase the electrical output from such
Biogas Project at the utility's Avoided Cost for so long as the Biogas Project
qualifies as a QF and satisfies Illinois laws. This obligation arises under
requirements of the Public Utility Regulatory Policies Act of 1978 ("PURPA"),
and Part 430, Purchase and Sale of Electrical Energy from Cogeneration and Small
Power Production Facilities of the Illinois Administrative Code. In addition, we
anticipate that at the expiration of such 10-year period, each Biogas Project
will seek to sell its generated electricity in the market for electricity
generated from renewable sources that exists in those states that have
implemented renewable portfolio standards or that have restructured their laws
to create competitive electricity markets ("Green Power Market") at green power
rates, which we currently project to exceed Avoided Cost.

Green Power Market and Pricing

After expiration of the 10-year period over which the Illinois-based Biogas
Projects participate in the Rate Incentive Program, and after expiration of the
power purchase agreements ("PPAs") for the non-Illinois-based Biogas Projects,
we


8


anticipate that USEB will sell the power generated by the Biogas Projects into
the Green Power Market, if economically attractive.

The use of power derived from alternative sources has been mandated in several
states in the United States, in addition to being discussed at a federal level.
Such states, including Illinois, have incorporated, or are in the process of
incorporating or considering the incorporation of, renewable portfolio
standards. These standards require that a certain percentage of power generated
be derived from a renewable fuel source. The mandate for such standards stems
from the objective of reducing the use of fossil fuels, reducing the reliance on
foreign energy sources and increasing the production of clean energy.

In those jurisdictions where renewable portfolio standards exist, Green Power
Markets may develop and management believes the rates for green power will
increase to a level that will result in green power generation reaching the
level set by renewable portfolio standards. Such levels typically involve a
price premium on electricity generated reflecting the total cost (including
capital) of producing such power. In addition, without state-mandated renewable
portfolio standards, it has been demonstrated that there is a segment of the
general public that has a preference for electricity generated from green power,
and is willing to pay a premium for such power.

We believe that the Biogas Projects' production of power will remain competitive
with energy generated from other renewable sources after the Rate Incentive
Program and current PPAs expire. A number of factors are expected to contribute
to the Biogas Projects' competitive position, including their: (i) comparatively
low variable fuel cost, (ii) proximity to customers thereby reducing
transmission costs, and (iii) high availability factors.

GHG Emission Credit Market

USEB also plans to continue to participate in the market for green house gas
("GHG") emission credits. In 2001, USEB entered into a transaction whereby it
sold GHG emission credits generated from its Biogas Projects for gross proceeds
of approximately US$1 million and will continue to pursue similar transactions.

Section 29 Tax Credits

Since the development of the Biogas Projects, USEB has sold predominantly all of
its ownership interests in the Gascos to either Cinergy or AJG.

An indirect subsidiary of Cinergy purchased USEB's ownership interests in the
Countryside, Morris and Brown County Gascos. Consideration for the purchase was
in the form of: (i) an up-front down payment; (ii) a fixed note with specified
principal and interest payments; and (iii) a contingent note whose payments are
based upon an amount of MMBtus sold by the Gascos to the Gencos. USEB has agreed
to indemnify the indirect subsidiary of Cinergy for certain losses suffered in
the event that certain tax-related representations and warranties made by USEB
are inaccurate.

AJG purchased the ownership interests in other Biogas Projects' Gascos, which
generate tax credits under Section 29 of the United States Internal Revenue Code
of 1986, as amended (the "Code"). Consideration from AJG to USEB was in the form
of: (i) an up-front down payment; and (ii) a contingent note whose payment is
based upon the amount of millions of British thermal units ("MMBtus") sold by
the Gascos to the Gencos. AJG subsequently sold certain of such ownership
interests to a subsidiary of American International Group. USEB has agreed to
indemnify AJG for certain losses suffered in the event that certain tax-related
representations and warranties made by USEB are inaccurate.

The ability of a project to receive Section 29 tax credits depends on the
placed-in-service date of the facility. Section 29 tax credits for the Gascos at
14 Biogas Projects are currently available annually until December 31, 2007,
based on an in-service date of on or before June 30, 1998. These projects
include Brickyard, Cape May, Countryside, Dixon Lee, Dolton, Hamms, Manchester,
Morris, 122nd Street, SPSA (I and II), Streator, Upper Rock, Tucson and Willow
Ranch. Biogas Projects with in-service dates prior to 1993 qualified for tax
credits only through 2002. These projects include Amity, Burlington, Oceanside
and Onondaga. USEB also owns two developmental sites where the Gascos generate
tax credits, and receives revenues from four other Gascos where the sites
themselves are owned and operated by third parties. USEB


9


has two generating facilities, Brookhaven and Roxanna, whose Gascos were not
owned by USEB and therefore generate no revenue for USEB from Section 29 tax
credits.

USEB thus receives a cash flow stream in connection with the sale of its Gasco
interests. Since Section 29 requires that a sales transaction take place between
unrelated parties, the Genco/Gasco structure was created. Each Biogas Project
(except Brookhaven and Roxanna), regardless of whether it is a Genco or Transco,
is affiliated with a Gasco entity that has generated and/or continues to
generate Section 29 tax credits for the benefit of the Gasco entity's owners.
Neither USEB nor any of the Gascos has obtained a ruling from the IRS confirming
that Gascos generate Section 29 credits. All of the Biogas Projects currently in
operation (except for the Roxanna and Brookhaven projects) have provided or
continue to provide economic benefits to USEB through the sale of Section 29 tax
credits to investment grade counterparties -- Cinergy, AJG and American
International Group.

Operations

Effective January 1, 2003, USEB entered into operating and maintenance
agreements with RUN Energy for the operation and maintenance of the Countryside
and Morris projects. Under the terms of these agreements, RUN Energy is
responsible for all expenses related to the operation of the equipment including
scheduled major and minor overhauls, the supply of fluids and other spare parts
and the replacement of failed components. The existing contracts have one year
terms with renewal options.

RUN Energy provides management, operations and maintenance services to the
energy industry. RUN Energy is a specialist in distributed power generation,
including renewable energy and waste fuels, with a cumulative total of over 6
million hours of operation at over 30 distributed power plants, predominantly in
the biogas industry.

On May 1, 2003, the term of the existing operating agreements with GE/Jenbacher
for the operation and maintenance of the Brickyard, Dixon Lee, Dolton, 122nd
Street, Roxanna, Streator, Upper Rock and Willow Ranch projects were extended to
10 years. Under the terms of these agreements, GE/Jenbacher is responsible for
all expenses related to the operation of the equipment including scheduled major
and minor overhauls, the supply of fluids and other spare parts and the
replacement of failed components. Compensation for the services is at a
flat-fixed rate per kWh produced, adjusted based upon the Consumer Price Index
and the Producers Price Index. Contract terms include the imposition of
penalties or the payment of bonuses should actual production fall below or
exceed prescribed levels. The production levels are adjusted periodically to
reflect gas quality and quantity.

With the execution of these operation and maintenance contracts, approximately
68% of the engine generating capacity of the Biogas Projects is operated and
maintained by third-party operators under fixed price contracts. As the
third-party operators are responsible for the relevant projects' day-to-day
operations, USEB has been able to reduce its staffing levels and insurance
premiums.

The operation and maintenance functions for the remaining Biogas Projects,
including Amity, Barre, Brookhaven, Burlington, Cape May, Hamms, Manchester,
Oceanside, Onondaga, SPSA I and II, and Tucson are performed by USEB staff,
which is comprised of 21 professionals. USEB personnel associated with these
projects are long-term employees and have been involved with these projects
since their inception.

Resolution of Merger Issues

On or about October 15, 2003, the Company, Cinergy Energy Solutions and certain
former stockholders of Zapco entered into an agreement resolving certain working
capital adjustment and indemnification issues arising from the May 2001 merger
transaction. Under the agreement, (i) $1,100,000 cash, held in escrow since the
merger, was released to the Company and Cinergy Energy Solutions which loaned
such cash to USEB. (ii) 59,813 of the Company's common shares and 2,667 of the
Company's Series C Preferred Shares were released from escrow to the Company
(iii) USEB's obligation to make a certain $400,000 deferred payment to certain
former Zapco shareholders was cancelled and USEB's obligation to make another
$400,000 deferred payment was deferred. In consideration of the foregoing, USEB,
the Company and Cinergy Energy Solutions waived their right to assert any
working capital adjustment and indemnification


10


claims under the merger documents except for certain environmental, tax and
regulatory claims. The balances of cash and securities held in certain escrows
under the merger documents (after the payments and transfers to the Company,
Cinergy Energy Solutions and USEB described above) were released to the former
Zapco shareholders. The agreement also provided that in the event of certain
transactions involving a change of control of USEB, the former Zapco
shareholders would receive 2.5% of the first $10 million of net proceeds from
such transaction and 6.25% of the next $20 million of net proceeds from such
transaction up to an aggregate maximum of $1.5 million.

USE Canada Energy Corp. ("USE Canada")

Throughout 2003, we owned USE Canada Holdings the parent of USE Canada. USE
Canada owns and operates two district energy systems located in Charlottetown,
Prince Edward Island and in London, Ontario. The two district energy systems
provide energy to a large number of customers in their respective service areas.
Most of the sales are under long-term contracts with the remaining weighted
average revenue contract duration of 13 years for the combined projects.
Contract revenues typically escalate at rates of CPI and fuel price is typically
passed through to customers in both systems, which reduces commodity price risk
to USE Canada. At expiration, the contracts are typically renewed on terms that
are competitive at that time. Customer losses are rare and the systems
experience net customer growth.

In Charlottetown, energy is produced at renewable biomass and energy-from-waste
facilities. Electricity is sold to the local public utility. In addition, hot
water and steam is distributed through an underground piping system to
institutional, residential and commercial buildings. The plant is a major
supplier of heat to large customers in Charlottetown. The plant was constructed
in the mid 1980's and was substantially expanded and upgraded in the mid-to-late
1990's. USE Canada's key customers in Charlottetown include: (i) the Provincial
Government (Department of Transportation and Public Works), (ii) University of
Prince Edward Island, (iii) Queen Elizabeth Hospital, and (iv) Island Waste
Management Corporation.

In London, Ontario energy is produced using a natural gas fueled CHP facility.
The London project has more than 65 customer contracts comprised of a mix of
commercial and government-related buildings with remaining 7 year weighted
average revenue contract duration. The system has a long and successful
operating history and was substantially upgraded in the 1990s and is a major
supplier of heating and cooling services to the London business district.

Effective December 31, 2003 USE Canada became a discontinued operation due to
its anticipated sale to the Countryside Fund which was completed on April 8,
2004.

U.S. Energy Geothermal, LLC

Through June 30, 2003 we owned a 95% membership interest in Geothermal, LLC
which owns two geothermal power plants in Steamboat Hills, Nevada: Steamboat 1
and 1A. These plants produce electricity through a system in which hot water
from the earth's sub-strata is used to generate electricity and then is
re-injected into the earth. The plants produce a combined seven megawatts of
electric power, which is sold under long-term power purchase agreements with
Sierra Pacific Power Company ("Sierra"). Sierra is obligated to pay rates for
this electric power generated by Geothermal, LLC that are based on the wholesale
electricity prices at the California-Oregon Border exchange.

Effective June 30, 2003, the Company sold its 95% membership in Geothermal, LLC
to a subsidiary of Ormat Nevada, Inc. for approximately $1.0 million in cash. As
part of the transaction, the purchaser and Ormat Nevada, Inc. agreed to
indemnify the Company, up to the amount of the purchase price, against certain
potential liabilities of Geothermal, LLC, the subsidiary that owned the
Steamboat Geothermal Plant, including a pending lawsuit brought against
Geothermal, LLC by Geothermal Development Associates and Delphi Securities
relating to royalty payments allegedly owed respecting Steamboat 1 and 1A during
the period March 1, 2000 to February 28, 2002.

Scandinavian Energy Finance, Limited / EnergiSystem i Sverige AB (SEFL).

In March, 2002, together with EIC we formed SEFL and financed EnergiSystem. SEFL
provided approximately $56 million to EnergiSystem in the form of loan
financing. Approximately $45 million of this loan was made in the form of a
senior secured convertible debenture to EnergiSystem and approximately $11
million was in the form


11


of a subordinated loan to EnergiSystem. The senior secured convertible debenture
carries an interest rate of approximately 6% during the first 2 years and 9%
thereafter. The subordinated loan carries an interest rate of approximately 13%.
SEFL had a 25 year option to acquire 90% of the fully diluted equity of
EnergiSystem for a nominal sum, which it exercised in December 2003.

As part of the transaction, EnergiSystem acquired seven operating district
energy systems and several late-stage development projects from Varmeland Teknik
AB, Narvarme Sverige AB and certain of their affiliates. Currently, the
operations provide biomass-fueled energy to 800 customers serving the equivalent
of approximately 30,000 households in ten communities in the vicinity of
Stockholm, Sweden. A significant portion of the energy is provided under
long-term contracts. The energy market in Sweden is deregulated, and district
energy markets are not subject to government rate regulation.

We currently hold 32% of the voting interests of SEFL. Borg Energi holds 2% and
EIC holds the remaining voting interests. As of December 31, 2003 we have a $7.5
million investment, including an approximately $5 million cash equity
investment, in SEFL a $1.2 million inter-company Company loan, an equity
investment of 147,976 of our common shares, valued at approximately $675,000,
and unrepatriated retained earnings. EIC invested its proportionate share in
cash.

A Swedish bank provided SEFL, with approximately $45 million of long term
financing on a non-recourse basis to SEFL's stockholders. The financing carries
a variable interest rate capped at 4.7% for the first 5 years and a rate of
STIBOR plus 110 basis points thereafter. The loan has a 25 year term with no
amortization during the first ten years.

Information regarding SEFL, currently constituting our only non-domestic
operation, is set forth in Note D to our accompanying Consolidated Financial
Statements for Fiscal Year ending December 31, 2003 and is incorporated herein
by reference.

Other Operations and Interests

Plymouth Envirosystems, Inc. Our wholly owned subsidiary, Plymouth
Envirosystems, Inc., owns a 50% interest in Plymouth Cogeneration Limited
Partnership ("Plymouth Facility") which owns and operates a CHP plant producing
1.2 MW of electricity and 7 MW of heat at Plymouth State College, in Plymouth,
New Hampshire. The Plymouth Facility provides, under a long-term contract, 100%
of the electrical and heating requirements for the campus, which is a part of
the University of New Hampshire system.

The day-to-day operations of the Plymouth Facility are managed by one of our
partners, which is an affiliate of Equitable Resources, Inc. Management
decisions are made by a committee composed of representatives of the three
partners in this project.

Lehi Envirosystems, Inc. In 1997, our entirely owned subsidiary, Lehi
Envirosystems, Inc. ("LEHI"), acquired a 50% equity interest in Lehi Independent
Power Associates ("LIPA"), which owns a cogeneration facility in Lehi, Utah (the
"Lehi Facility") and the underlying real estate. The Lehi Facility has been
dormant since 1990. Due to the lack of development opportunities, in the first
quarter of 2002, the Company recorded an expense equal to the carrying value of
the investment of $830,000.

USE GEO Acquisition LLC (USE GEO). This district energy project had been under
development since 1996. Limited progress in the development of the project was
achieved in 2002. Accordingly, on December 31, 2002 the Company recorded an
expense equal to the carrying value of our investment in this entity of $2.5
million. USE GEO was dissolved in 2003.

Castlebridge Partners LLC ("Castlebridge"). On August 23, 2000, we issued
568,750 shares of our common stock through US Energy Castlebridge LLC. ("USE
Castlebridge"), a wholly-owned subsidiary of the Company, to acquire a 25%
interest in Castlebridge, a risk management firm specializing in risk management
services for the energy and commodities industries.

As of December 31, 2002, the ownership structure of Castlebridge was
reorganized. Castlebridge distributed to USE Castlebridge, all of its remaining
268,750 shares of the Company's common stock. USE Castlebridge's membership
interest was converted from a common membership interest into a preferred
membership interest with preferred dividend and liquidation preferences equal to
$1.7 million plus accrued unpaid preferred dividends.

The market for risk management services for the energy industry deteriorated
significantly during 2002 in


12


connection with lower market power prices and reduced electricity trading
activities among the large integrated utilities and merchant energy companies,
and other companies involved in electricity trading. As a result of the
deteriorating outlook, the Company recognized an impairment equal to the
carrying value of the investment of $1.7 million in 2002 after performing a
discounted cash flow value analysis using a risk adjusted rate of return
commensurate with the specific business characteristics and potential business
opportunities in the energy trading and commodities markets.

In 2003, Castlebridge transferred substantially all of its assets (which at the
time were de minimus) to an entity owned by certain of its employees (who are
unaffiliated with the Company) in consideration of the assumption by such entity
of all of Castlebridge's liabilities. Subsequently, effective December 31, 2003,
Castlebridge was dissolved.

Marathon Capital LLC, ("Marathon"). In 2000, the Company acquired preferred
stock in Marathon, yielding a 9% annual dividend and convertible into a 31%
common interest in Marathon, by issuing 200,000 shares of the Company's common
stock. Marathon specializes in arranging financing and asset acquisition
advisory services for energy projects.

The financing and acquisition market for energy projects deteriorated
significantly during 2002 and few transactions took place due to a lack of
liquidity in the sector resulting from adverse capital market conditions. In
connection with the deteriorating market, the Company recognized an impairment
equal to the carrying value of the investment of $1.01 million due to the
uncertainty in the energy markets and the projected value of the investment in
the next five years. In September 2003, the Company sold its interest in
Marathon for $100,000 cash.

EMPLOYEES

At April 1, 2004 we employed approximately 78 full time employees in our various
subsidiaries and locations. Not included are personnel at certain power plants
provided under contract with the plant operators.

GOVERNMENT REGULATION

US Energy Business

None of the Company's energy projects in the United States are currently subject
to federal or state utility rate regulation. Under present federal law, the
Company is not and will not be subject to regulation as a holding company under
the Public Utility Holding Company Act ("PUCHA") of 1935, as long as each power
plant in which it has an interest is a qualifying facility (a "QF") as such term
is defined under PURPA, or meets the criteria for another exemption. A QF is a
distinct type of energy producer that falls into one or both of two primary
classes. The first class of QFs includes energy producers that generate power
using specific energy sources such as wind, solar, geothermal, hydro, biomass or
waste fuels. The second class of QFs includes cogeneration facilities. For so
long as a facility otherwise eligible for QF status is not more than 50% owned
by a person primarily engaged in the generation or sale of electric power (other
than electric power solely from cogeneration facilities or small power
production facilities), such facility will be exempt from regulation under
PUHCA. Similarly, an entity directly or indirectly owning a QF is not subject to
PUHCA by virtue of such ownership. The Federal Energy Regulatory Commission's
("FERC's") implementing regulations explain that a cogeneration or small power
production facility shall be considered to be owned by a person primarily
engaged in the generation or sale of electric power if more than 50% of the
equity interest in the facility is held by an electric utility or utilities, or
by an electric utility holding company, or companies, or any combination
thereof. Each of our United States energy projects is a QF. The Biogas projects
will be considered QF's if they meet PURPAS's ownership requirements and other
standards. In those states where the sale of electricity directly to an
individual or a commercial customer is regulated as retail, none of our energy
projects is currently subject to state utility law regulation.

Separate from federal and state utility rate regulation, the construction and
operation of power generation facilities require numerous permits, approvals and
certificates from appropriate federal, state and local governmental agencies, as
well as compliance with environmental protection legislation and other
regulations. We believe that we are in substantial compliance with all
applicable rules and regulations and that the projects in which we are involved
have the requisite approvals for existing operations and are


13


operated in accordance with applicable laws.

Biogas Illinois Projects

The Illinois Public Utilities Act. Each of Biogas' projects in the State of
Illinois is a QSWEF under the Illinois Public Utilities Act ("IPUA"). Pursuant
to the IPUA, electric utilities (the "Utilities") are required to enter into
long-term power purchase agreements with the QSWEFs of at least a ten-year
duration. The Utilities must purchase the electricity from the QSWEFs at the
Gross Contract Rate. This Gross Contract Rate is different from, and generally
exceeds, the Utilities' Avoided Cost. Thus, the QSWEF's receive an Incentive
representing the excess of the Gross Contract Rate over Avoided Cost. The
Utilities are entitled to Illinois State tax credits equal to the amount of any
Incentive that they transfer to the QSWEFs under the purchase agreements.

The QSWEFs are obligated to reimburse the State of Illinois for the amount of
the Incentive. The QSWEFs are required to begin repaying Incentive to the State
of Illinois no later than the earlier of the date the QSWEF has or otherwise
satisfied in full the capital paid costs or indebtedness incurred in developing
its facility and 10 years from the date the facility begins commercial
operation. All tax credits must be fully repaid by the earlier of the end of the
actual useful life of the facility and 20 years after the QSWEF began commercial
operation. In accordance with ICC Orders, Biogas' Illinois projects maintain
Illinois Reimbursement Accounts by means of which they segregate money to repay
the State of Illinois for amounts of the Incentive.

Canadian Energy Business

Our Canadian district energy projects are currently not subject to national or
provincial utility rate regulation. However, projects require numerous permits,
approvals and certificates from provincial and municipal agencies. We believe
that we are in substantial compliance with all applicable rules and regulations
and that the Canadian district energy projects in which we are involved have the
requisite approval for existing operations and are operated in accordance with
applicable laws.

ITEM 2. DESCRIPTION OF PROPERTY

Property owned by Biogas projects includes all buildings and improvements,
electricity generating equipment, switchgears, controls and associated ancillary
equipment. Biogas has no ownership interest in the landfills, nor does it have
any responsibilities or liability for the operation of the landfills. Biogas
projects (Gencos, Transcos and Gascos) occupy the landfills pursuant to leases.
Substantially all of Biogas project assets collateralize its project's loans.
Biogas rents office space in Avon, Connecticut.

USE Canada owns buildings, turbine generators, boilers, fuel handling systems,
cooling towers, and distribution piping, heat exchangers and converters. Some
underlying land is leased. Both plants also have stand-by backup plants under
lease. Substantially all of USE Canada's project assets collateralize USE
Canada's project loans.

Plymouth Cogeneration, a Delaware partnership, of which we own 50%, owns the
Plymouth Facility. Plymouth Cogeneration owns plant and equipment associated
with the cogeneration project including the engines, generators, boilers,
switchgear, controls and piping.

The Lehi Facility is owned by LIPA, a Utah limited liability company, of which
we own 50%. The property is in Lehi, Utah, and includes land, buildings and
permits.

Our headquarters are located in a commercial office building in White Plains,
New York.

All our properties are in satisfactory condition and we believe that they are
adequately covered by insurance.

ITEM 3. LEGAL PROCEEDINGS

We are engaged from time to time in legal proceedings, none of which are
expected to materially affect our business.


14


In 2002 EnergiSystems, a 90% subsidiary of SEFL (in which we hold a 32%
interest) purchased seven operating district energy systems and several late
stage development projects from Narvarme Sverige AB and Varmeland Teknik and
other affiliated companies. In 2004 Narvarme Sverige AB commenced a legal
proceeding against EnergiSystem claiming certain contingent consideration in
connection with the EnergiSystems acquisition. EnergiSystems has defended the
suit on the grounds that the conditions for such payment were not met and that
EnergiSystems has valid counterclaims against Varmeland Teknik AB arising from
the acquisition transaction. In 2004 the lower court found in favor of Narvarme
Sverige AB. The lower court's holding was affirmed by the intermediate appeals
court in April 2004. EnergiSystems is in the process of taking an appeal to the
Swedish Supreme Court. In the event the litigation is determined adversely to
EnergiSystems, SEFL's investment in EnergiSystems and our investment in SEFL
could be affected in a materially adverse manner. For this reason, among others,
the Company is continuing to monitor its $7.5 million investment in SEFL.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None.

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, AND RELATED STOCKHOLDER MATTERS
AND ISSUER PURCHASE OF EQUITY SECURITIES

PRICE RANGE OF COMMON STOCK

Our Common Stock trades on the NASDAQ Small Cap Market under the symbol USEY.
The table below sets forth, for the periods indicated, the high and low sales
prices for the Common Stock as reported by the NASDAQ Small Cap Market.

Sales Price
------------------
High Low
------- -------

Fiscal Year Ended December 31, 2002:
First Quarter................................. $5.30 $3.30
Second Quarter................................ 4.08 1.11
Third Quarter................................. 1.95 .60
Fourth Quarter................................ 1.38 .56

Fiscal Year Ended December 31, 2003
First Quarter................................. $1.28 $.51
Second Quarter................................ 1.52 .60
Third Quarter................................. 2.30 1.01
Fourth Quarter................................ 1.41 .90


15


HOLDERS

As of April 6, 2004 there were 317 holders of record of our Common Stock. We
estimate that there are over 3,200 beneficial holders of our common stock.

DIVIDENDS

We have not paid cash dividends on our common stock and currently do not
anticipate paying cash dividends on our common stock in the foreseeable future.
Our ability to pay cash dividends on our common stock may be limited by our
outstanding shares of Series B, Series C and Series D Preferred Stock.
Generally, these shares of preferred stock provide that no dividends may be paid
on our common stock unless dividends have been set aside for the outstanding
preferred stock. In addition, we are limited in our ability to pay dividends by
various loan agreements, which our subsidiaries have entered into and that may
limit their ability to distribute cash to us.

Equity Compensation Plan Information as of December 31, 2003



- -----------------------------------------------------------------------------------------------
Number of securities Weighted-average Number of
to be issued upon exercise price of securities
exercise of outstanding options remaining
outstanding options, warrants and rights available for
Plan Category warrants and rights under compensation future issuance
- ------------- plans under equity
compensation plans
- -----------------------------------------------------------------------------------------------

Equity compensation
plans approved by 5,793,925 $3.88/share Less than 5,500,000
security holders
- -----------------------------------------------------------------------------------------------
Equity compensation
plans not approved by 275,000 $4.23/share 0
security holders
- -----------------------------------------------------------------------------------------------
Total 6,068,925 $3.89/share Less than 5,500,000
- -----------------------------------------------------------------------------------------------


ITEM 6. SELECTED FINANCIAL DATA



(dollars in thousands)
===================================================================================================================
Year 2003 Year 2002 Year 2001 Year ended Year ended
Jan. 31, 2000 Jan. 31, 1999
===================================================================================================================

Total assets $172,041 $219,008 $187,610 $14,354 $14,171
- -------------------------------------------------------------------------------------------------------------------
Long-Term Debt 53,827 98,030 57,005 384 396
- -------------------------------------------------------------------------------------------------------------------
Common Stockholder's Equity 39,085 38,754 45,865 10,491 11,010
- -------------------------------------------------------------------------------------------------------------------
Revenues 24,999 28,620 22,760 4,195 2,233
- -------------------------------------------------------------------------------------------------------------------
Income (Loss) from operations 5,035 (5,710) 4,772 (609) (1,093)
- -------------------------------------------------------------------------------------------------------------------
Income (Loss) Applicable to Common Stock 1,009 (16,979) 3,378 (743) (1,078)
- -------------------------------------------------------------------------------------------------------------------
Basic Earnings per Common Stock 0.08 (1.39) 0.35 (1.05) (0.14)
- -------------------------------------------------------------------------------------------------------------------
Diluted Earnings per Common Stock 0.06 (1.39) 0.20 (1.05) N/A
- -------------------------------------------------------------------------------------------------------------------


In reviewing the above table the following should be taken into consideration:

A. USE Canada was acquired in June 2001 and became a discontinued
operation on December 31, 2003 in connection with its anticipated
purchase by the Countryside Fund.

B. USE Biogas was acquired in May 2001.

C. SEFL was incorporated in 2002 and was included in our consolidated
operating results since March 2002. The company's ownership was
reduced from 51% to 32% in 2003 and is accounted for by the equity
method commencing January 1, 2004.

D. US Energy Geothermal LLC was sold in June 2003.


16


ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND RESULTS
OF OPERATIONS

RESULTS OF OPERATIONS

During the year 2003 the pending sale of USE Canada to the Countryside Fund and
the accounting for SEFL under the equity method affected the revenues and
expenses reported for financial statement purposes. These revenues and expenses
are lower than reported in previous years. In addition, the sale of Geothermal,
LLC also reduced revenues. Geothermal, LLC and USE Canada are reported as
discontinued operations. See Note R to the financial statements.

Year 2003 compared with Year 2002

A summary of revenue and operating income by operating units is as follows:



=================================================================================================
FY 2003 Gains
FY 2003 Operating (Losses) from Joint
Business Groups/Units FY 2003 Revenues Income (Loss) * Ventures
=================================================================================================

Operations Group
USEB $24,426 $ 6,408
Corporate Group
US Energy Systems, Inc. 573 (1,373)
SEFL (792)
=================================================================================================
Total Company $24,999 $ 5,035 $(792)
=================================================================================================


* Before Minority Interests

In comparing fiscal 2003 information to 2002 fiscal information it should be
noted that:

1) The Company sold its investment in USE Geothermal on June 30, 2003 and
was deemed a discontinued operation in 2003.

2) The Company's Investment in SEFL was reduced to 49% reflecting the sale
of two percent of its investment and was further reduced to 32 % in the
4th quarter of 2003 due to the issuance of additional stock to EIC in
consideration for EIC's additional investment.

3) Effective December 31, 2003 USE Canada was deemed to be a discontinued
operation in connection with its anticipated sale to the Countryside Fund.

Investments in joint ventures are accounted for under the equity method of
accounting, and accordingly, revenues and expenses of these investments are not
included in our consolidated statements of operations.


17


The following is a breakdown of selected categorized costs for Fiscal 2003,
2002, and 2001:



=============================================================================================================
Fiscal 2003 Fiscal 2002 Fiscal 2001
- -------------------------------------------------------------------------------------------------------------

Revenues $24,999 $28,620 $22,760
- -------------------------------------------------------------------------------------------------------------
Operating Expense $10,964 $14,842 $ 9,895
Special write-offs Year 2002 3,684
General and Administrative Expenses
Salaries and Consulting Fees 3,336 4,964 2,103
Legal and Professional Fees 722 660 436
Corporate Insurance 623 789 397
Corporate Expenses 572 371 357
Other General and Amortization 665 3,174 675
Depreciation and Amortization 3,874 5,906 4,208
=============================================================================================================
Total Expenses* $20,756 $34,390 $18,071
=============================================================================================================


The following is a breakdown of selected categorized costs for Fiscal 2003:



===============================================================================================
Corporate
Operations and Other Total
===============================================================================================

Operating Expense $10,453 $ 511 $10,964
General Administrative Expenses 2,875 3,043 5,918
Depreciation and Amortization 3,686 188 3,874
===============================================================================================
Total * $17,014 $ 3,742 $20,756
===============================================================================================


* Excludes (gain) from Joint Ventures

REVENUES:

The Company's 2003 fiscal year revenues were $24,999,000 a decrease of
$3,621,000 or12.6% compared with fiscal year 2002 revenues of $28,620,000 after
net of accounting for USE Canada and USE Geothermal as discontinued operations.
The principal reason for the decrease is that for 2003 SEFL, was de-consolidated
in the financial statements and accounted for using the equity method as
disclosed in Note B to the financial statements. In 2002, revenues from SEFL
were $3,452,000.

EXPENSES:

Operating Expenses: The operating expenses of the Company in fiscal 2003
decreased by $3,878,000 or 26.1 % compared with fiscal 2002. After adjusting for
the effect of the entities sold, the change in accounting for the SEFL project
and reflecting USE Canada and Geothermal LLC as discontinued operations,
operating expenses in our core business decreased by $1,122,000. USEB entered
into contracts with two contractors to operate and maintain a number of its
generating facilities. These contracts have fixed rates which include
preventative maintenance. The number of full time employees in USEB was reduced
by approximately 45 percent due to these contracts and other cost saving
efforts. Operating expenses also declined as a percent of total revenues. The
year 2003 operating expenses were 44% of total revenues compared with 52% in the
year 2002.

General and Administrative Expenses: General and administrative expenses were $
5,918,000 for fiscal year 2003 compared with $9,958,000 for fiscal year 2002, a
decrease of $ 4,040,000 or 40.6 %. The large decrease was due principally to the
non-recurring items that were included in the fiscal year 2002 results. The
non-recurring items relate to the recognition of $1.5 million of previously
deferred compensation, the payment of $1.1 million of severance fees and
consulting fees related to the consolidation of the accounting and
administrative functions of USEB, the recognition of development costs amounting
to $760,000 and the increase in the doubtful accounts balance of $1.0 million.
Fiscal year 2002 also includes $450,000 of general and administrative costs
applicable to the US Enviro Systems which was sold in 2003. The year 2003
includes a reserve for SEFL management fee and earnings amounting to $992,000.
Taking the aforementioned items into account, General and Administrative expense
decreased in 2003 by approximately $200,000 reflecting mainly lower salary
expenses.

Depreciation and Amortization: Depreciation and Amortization amounted to $
3,874,000 in fiscal year 2003 compared with $ 5,906,000 for the fiscal year 2002
a reduction of $2,032,000 or 34.4%. The reduction is principally due to the sale
of U.S. Enviro Systems in 2002. In addition, the year 2002 includes increased
depreciation expense related to overhauls at a number of USEB sites in 2002.


18


Interest Income and Expense:

Interest Income for fiscal year 2003 amounted to $1,175,000 compared with $
1,648,000 for fiscal year 2002, a reduction of $473,000 or 28.6%. Section 29
interest received by USEB was $447,000 in 2003 compared with $754,000 in 2002.
The Section 29 interest was reduced in 2003 due principally to the loss of tax
credit eligibility in a number of Gascos. The decrease also reflects lower
market interest rates resulting in lower interest earnings.

Interest expense for the fiscal year 2003 amounted to $6,779,000 compared with
$7,766,000 for the fiscal year 2002 a reduction of $987,000 or 12.7%.

Income Tax:

Provision for income taxes resulted in a tax benefit for fiscal year 2003 of $
1,227,000. The Company has a Net Operating Loss (NOL) carry forward of
approximately $43 million, some of which is subject to limitation under Section
382 of the IRS code.

Year 2002 Compared with 2001

For comparison purposes, below is a summary of selected categorized costs for
Fiscal 2002.

A summary of revenue and operating income by operating units is as follows:



=====================================================================================
FY 2002 Gains
FY 2002 Operating (Losses) from
Business Groups/Units FY 2002 Revenues Income (Loss) * Joint Venture
=====================================================================================

Operations Group
USEB $21,950 $ (1,685)
US Enviro 2,519 91
SEFL 3,453 1,184
-----------------------------
Total Group 27,922 (410)

Corporate Group
US Energy Systems, Inc. 698 (4,530) 77
Lehi (830) (17)
=====================================================================================
Total Company $28,620 $ (5,770) $ 60
=====================================================================================


* Before Minority Interests

In comparing fiscal 2002 information to fiscal 2001 it should be noted that:

a) The Company sold US Enviro on June 30, 2002. Therefore, only six
months of activity is included in fiscal year 2002 as compared to a
full year in fiscal year 2001.

b) Fiscal year 2002 includes a full year of activity for USEB and USE
Canada as compared to fiscal year 2001 which included eight and
seven months for USEB and USE Canada, respectively.

c) The inclusion of SEFL activity in fiscal year 2002 has no comparison
in fiscal year 2001.

A comparable breakdown for Fiscal 2002 is as follows:


19


==============================================================================
Corporate
Operations and Other Total
==============================================================================
Operating Expense $14,842 $14,842
General Administrative Expenses 8,400 1,558 9,958
Special Write-Offs in 2002 3,684 3,684
Depreciation and Amortization 5,843 63 5,906
==============================================================================
Total * $29,085 $5,305 $34,390
==============================================================================

* Excludes (gain) from Joint Ventures

Investments in joint ventures are accounted for under the equity method of
accounting, and accordingly, revenues and expenses of these investments are not
included in our consolidated statements of operations.

During 2002, we incurred substantial non-recurring costs or expenses in
restructuring and improving certain projects, eliminating unnecessary or
redundant administrative functions, risk mitigation and the termination and/or
disposition of non-performing or non-strategic assets.

REVENUES:

The Company's 2002 fiscal revenues were $28,620,000, an increase of 25.7% when
compared with the fiscal year end 2001. Revenues of the Operations Group
increased primarily due to the consolidation of two significant acquisitions,
including USEB, and for the full fiscal year 2002 and SEFL for nine months of
fiscal 2002, respectively. Revenue increases were offset by the elimination of
revenues from the sale of US Enviro and non-recurring items from USEB. In 2002,
Biogas revenues were essentially flat when compared to the prior year period.

EXPENSES:

Operating Expenses: The operating expenses of the Company grew $4,947,000 or 50%
from 2001. This increase, while mostly due to the recognition of a full year of
operating expenses for USEB and nine months of operating expenses for SEFL, is
also due to significant non-recurring of expenses in 2002 for USEB and costs
associated with discontinued operations of non-strategic assets. Additionally,
approximately $1.4 million of site improvements were recognized as period
expenses in 2002. Operating expenses were 52% of total revenues in 2002 compared
with 43% of total revenues in 2001.

Accounting for combined accruals for the payment of royalties and royalty
termination payments, the Company recorded a $1.2 million non-cash charge and
valuation expense Geothermal, LLC. Operating expenses for 2002, after excluding
non-recurring period charges, remained constant as compared to the prior year
period, when adjusted for the inclusion of a full year of SEFL, USEB and the
exclusion of US Enviro.

Operating, General and Administrative Non-recurring: In the first quarter of
2002, the Company recognized non-recurring expenses against operations,
goodwill, investment and general and administrative expenses. These expenses
were recognized due to expected losses in the sale of the US Enviro, write down
of development costs of $700,000, discontinued operations in USEB, valuation
adjustments of investments held by LEHI and Geothermal, LLC, and potential
severance and other expenses related to the consolidation of operations and
accounting of USEB.

General and Administrative: Salaries and consulting fees increased by more than
$6.6 million due in part to the recognition of $1.5 million of deferred
compensation from 2001. In 2001, these expenses were deferred and were to be
amortized over five years. Additionally, USEB incurred severance fees and
consulting fees related to the consolidation of the accounting and
administrative functions of $1.1 million. Legal and professional fees increased
primarily due to the retention of lawyers specializing in IRS proceedings
related to USEB Illinois subsidiary income recognition and the termination of
contracts related to discontinued operations at USEB. The IRS proceeding
concluded without any material change to our tax position. Insurance expense
increased due to the general increase in all insurance since September 11, 2001,
including a major increase in the cost of Director's and Officer's liability
insurance in 2002, and the inclusion of Biogas on a full year basis. Other
general and administrative expenses increased from previous years due to the
recognition of development costs of $760,000, the increase in the doubtful
account balance of $1.0 million by Biogas and the inclusion of USEB on a full
year basis. Corporate expenses for 2002, after excluding non-recurring period
charges, remained relatively constant.


20


Gains from investments and joint ventures decreased from $83,000 in fiscal 2001
to $60,000 in fiscal 2002 due to lower power generation at the Plymouth
facility.

Interest Income and Expense:

Interest income increased to $1,648,000 in Fiscal 2002 from $909,000 in Fiscal
2001 an increase of 81.3% as a result of higher cash balances and the receipt of
interest on notes receivable not in effect in the full prior period. Dividends
paid on preferred stock decreased by $281,000, from $1,111,000 in Fiscal 2001 to
$831,000 in fiscal 2002, as a result of the reduced dividend rates.

Interest expense increased significantly due mainly to the consolidation of
non-recourse project financing in connection with USEB and USE Canada on a full
year basis.

Income Tax:

Provision for income taxes resulted in a tax benefit for fiscal 2002 of
$7,297,000. The effective tax rate was approximately 40% for fiscal 2002. The
company had an NOL carry forward of $30 million, some of which is subject to
limitation under Section 382 of the IRS code.

Contractual Obligations

The following table summarizes our significant contractual obligations at
December 31, 2003 and the effect such obligations are to have on our liquidity
and cash flow in future periods.



(Dollars in thousands)
======================================================================================================
Less than More than
Total 1 year 1-3 years 4-5 years 5 years
======================================================================================================

Long-Term Debt Obligations 69,468 5,616 18,836 17,421 22,595
Operating Lease Obligations 1,186 383 752 51 --
Rate Incentive Liability 39,818 -- -- -- 39,818
======================================================================================================
Total
======================================================================================================


LIQUIDITY AND CAPITAL RESOURCES

At December 31, 2003, cash and cash equivalents totaled approximately
$20,913,000, of which $ 3,210,000 was unrestricted. In connection with certain
notes payable for certain USEB subsidiaries, the lender requires these
subsidiaries to maintain various restricted cash accounts, which at December 31,
2003 amounted to $17,703,000. This amount also includes approximately $947,000
which the Company set aside to ensure payment of dividends on certain series of
preferred stock present in the terms thereof.

During the year ended December 31, 2003 net cash flows from operating and
financing activities were used to fund cash flows from investing and financing
activities.

During the year 2003, cash flow from operating activities amounted to $
9,441,000 and increased from the year 2002 level of $ 5,262,000. Cash flow from
investing activities were $ 2,397,000 at December 31, 2003 compared with
$55,104,000 at December 31, 2002. The large decrease is due to the accounting
change for the SEFL investment reflecting the equity method of accounting.

Cash flows from financing activities amounted to a decrease of ($1,234,000) at
December 31, 2003 compared with an increase of $39,987,000 at December 31, 2002.
The year 2002 includes $ 44,856,000 of proceeds for long term debt applicable to
the SEFL project.

Our consolidated working capital (including $17,703,000 of restricted cash at
December 31, 2003)


21


increased to $ 23,850,000 at December 31, 2003 from $ 2,826,000 at December 31,
2002 due primarily to increased restricted cash and a reduction in short term
debt.

At December 31, 2002, cash and equivalents totaled approximately $15,103,000, of
which $1,856,000 was unrestricted, as compared with $10,201,000 of unrestricted
cash at December 31, 2001. In connection with notes payable by certain Biogas
subsidiaries, the lender required these subsidiaries to maintain various
restricted cash accounts, which, at December 31, 2002, amounted to $13,247,000.
This amount also includes approximately $1,590,000 million of funds the Company
set aside to ensure the payment of dividends on certain series of our preferred
stock pursuant to the terms thereof.

During the year ended December 31, 2002, cash flow of $39,987,000 from financing
activities and $5,252,000 of operating funds were used to fund $55,104,000 of
investing activities.

Cash flow from operating activities during the year ended December 31, 2002
decreased $3,476,000 after accounting for the effect of the non-recurring
non-cash effecting charges recorded by the Company as compared with $8,728,000
during the year ended December 31, 2001. The Company used its unrestricted cash
during 2002 to launch SEFL, reduce overall headcount of employees and fund daily
operations.

We used $2,310,000 in acquiring additional assets and investments. Construction
in progress used $737,000 in cash in the current twelve months period.

Our consolidated working capital (including $13,247,000 of restricted cash at
December 31, 2002) decreased to $6,882,000 at December 31, 2002 from $19,447,000
at December 31, 2001 reflecting lower cash balances.

We continue to evaluate current and forecasted cash flow as a basis to determine
financing operating requirements and capital expenditures. We believe that we
have sufficient cash flow from operations and working capital including
unrestricted cash on hand to satisfy all obligations under outstanding
indebtedness, to finance anticipated capital expenditures and to fund working
capital requirements during the next twelve months.

CERTAIN RISK FACTORS THAT MAY IMPACT US:

Set forth below and elsewhere in this report and other documents we file with
the SEC are risks and uncertainties that could cause actual results to differ
materially from the results contemplated by the forward looking statements
contained in this report.

RISKS RELATED TO THE COMPANY:

We may face substantial impediments to completing future acquisitions and
development projects.

Our growth strategy depends on our ability to identify and acquire appropriate
companies or energy projects, our ability to develop new energy projects, our
ability to integrate the acquired and developed operations effectively and our
ability to increase our market share. We cannot assure you that we will be able
to identify viable acquisition candidates or development projects, that any
identified candidates or development projects will be acquired or developed,
that acquired companies or power facilities and developed projects will be
effectively integrated to realize expected efficiencies and economies of scale,
or that any acquisitions or development projects will prove to be profitable or
be without unforeseen liabilities. In the event that acquisition candidates or
development projects are not identifiable or acquisitions or development
projects are prohibitively costly, we may be forced to alter our future growth
strategy. As we continue to pursue our acquisition and development strategy in
the future, our stock price, financial condition and results of operations may
fluctuate significantly from period to period.

We have limited available capital, and we may need additional financing in the
future.

We believe that our current and anticipated cash flow from operations and assets
sales from the financing sources and transactions described herein will be
sufficient to meet our anticipated cash requirements for the next twelve months;
however, there can be no assurance in this regard. As of December 31, 2003 we
had approximately $3.2 million unrestricted cash available. As a closing of the
Countryside Fund we have in excess of $20 million unrestricted cash available.
If we are unable to generate cash flows from operations to fund our working
capital needs, we would be required to obtain additional


22


equity or debt financing to continue to operate our business. In addition, we
anticipate that each project we acquire or develop will require us to raise
additional financing, some of which may be in the form of additional equity.

There can be no assurance that this capital will be available to us, or if
available, that it will be on terms acceptable to us. If issuing equity
securities raises additional funds, significant dilution to existing
stockholders may result. If additional financing for projects is not available
on acceptable terms, we may have to cancel, decline or defer new projects. Any
inability by us to obtain additional financing to meet cash or capital
requirements, if required, may have a material adverse effect on our operations.

Our subsidiaries have substantial indebtedness and in connection with their
existing indebtedness we have agreed to significant restrictions upon their
operations, including their ability to use their cash.

We have substantial debt that has been incurred to finance the acquisition and
development of energy facilities. As of December 31, 2003, our total
consolidated long term debt was $64 million, our total consolidated assets were
about $172 million and our stockholders' equity was approximately $39 million.
Whether we will be able to meet our debt service obligations and repay our
outstanding indebtedness will depend primarily upon the performance of our
energy projects. Our subsidiaries' existing debt agreements limit or prohibit
their ability to engage in transactions outside the ordinary course of business
and may limit their ability to pay dividends to us.

Although we have insurance it may not cover every potential risk associated with
our operations.

Although we maintain insurance of various types to cover many of the risks that
apply to our operations, including $2 million of general liability insurance, a
$20 million umbrella policy, as well as separate insurance for each project, our
insurance will not cover every potential risk associated with our operations.
The occurrence of a significant adverse event, the risks of which are not fully
covered by insurance, could have a material adverse effect on our financial
condition and results of operations. Moreover, no assurance can be given that we
will be able to maintain adequate insurance in the future at rates we consider
reasonable.

We have issued many securities convertible into shares of our common stock and
we have many authorized but unissued shares of our common stock.

We have issued shares of our preferred stock, options, warrants, and other
securities convertible into shares of our common stock. In addition a
substantial portion of shares issued in connection with the Zapco merger are
subject to sales restrictions that have lapsed effective May 11, 2002. The
market price of our common stock could drop significantly if the holders of
these securities sell the underlying shares of common stock or the restricted
shares issued to the Zapco stockholders or if the market perceives that they are
intending to sell them. Certain of these Zapco stockholders have sold some of
their shares or have stated their intention to do so. The possibility that
substantial amounts of our common stock may be issued or freely resold in the
public market may adversely affect prevailing market prices for our common
stock, even if our business is doing well.

RISKS RELATED TO OUR ENERGY BUSINESS:

We depend on our electricity and thermal energy customers.

Our energy facilities rely on one or more energy sales agreements with one or
more customers for a substantial portion of their revenues. Any material failure
by any customer to fulfill it obligations under an energy sales agreement could
have a negative effect on the cash flow available to us and on our results of
operations.

The energy business is very competitive and increased competition could
adversely affect us.

In addition to competition from electric utilities in the markets where our
projects are located, our energy business also faces competition from companies
currently involved in the cogeneration and independent power market throughout
the United States. Some of these companies are larger and better financed than
we are. Although we believe that we will be entering segments of the marketplace
where we will not face extensive competition, no assurances can be made that we
will be able to enter these markets or that there


23


will not be competition in such markets. Additionally, in recent years, such
competition has contributed to a reduction in electricity prices in certain
markets.

While a majority of the off-takers of our projects is contractually obligated to
purchase electricity under long-term power PPA's, the projects based on market
pricing will be exposed to fluctuations in the wholesale price of electricity.
In addition, should any of the long-term contracts terminate or expire, we will
be required to either negotiate new PPAs or sell into the electricity wholesale
market for electricity, in which case the prices for electricity will depend on
market conditions at the time. Similarly, when the Biogas Projects located in
Illinois are no longer eligible to receive incentives under the Rate Incentive
Program, it is expected that the projects will seek to negotiate new contracts
in the Green Power Market based on rates prevailing in the Green Power Market at
the time. Further, the Gross Contract Rate which USEB's Illinois-based Biogas
Projects receive is equal to the average amount per kWh paid by the local
government entities in the project's respective jurisdiction and, therefore, may
be subject to change.

We operate in an emerging industry and have limited marketing capabilities.

Although the energy markets in which we operate have been in existence for a
number of years, they are still in the development stage. As is typically the
case in an emerging industry, levels of demand and market acceptance for
products and services are highly uncertain. Further, we have limited financial,
personnel and other resources to undertake extensive marketing activities.

We may experience project development risks.

Our ability to develop new projects is dependent on a number of factors outside
our control, including obtaining customer contracts, power agreements,
governmental permits and approvals, fuel supply and transportation agreements,
electrical transmission agreements, site agreements and construction contracts.
No assurances can be made that we will be successful in obtaining these
agreements, permits, and appraisals. Project development involves significant
environmental, engineering and construction risks.

Our business of owning, operating power plants, and district energy systems
involve considerable risk.

The operation of energy generation facilities involves many risks, including the
breakdown or failure of power generation, heating and cooling, equipment,
transmission lines, pipes or other equipment or processes and performance below
expected levels of output or efficiency. Although the facilities in which we are
or will be involved contain some redundancies and back-up mechanisms, no
assurances can be made that those redundancies or back-up mechanisms would allow
the affected facility to perform under applicable power purchase and energy sale
agreements. USEB has entered into operation and maintenance agreements with
GE/Jenbacher and RUN Energy for eight and two of its projects, respectively. As
a result, USEB is and will be dependent on these third party operators for the
successful operation of these projects. To the extent that these parties do not
fulfill their obligations under these agreements, USEB's operations at these
projects could be adversely affected. Renewable energy projects such as
geothermal, biogas and biomass projects are dependent upon energy and fuel
supplies, which may experience significant changes. Our energy projects,
particularly our district energy systems, experience changes in revenue and
expenses due to seasonality.

We may lose our status as a qualifying facility.

Under present federal law in the United States, we will not and will not be
regulated as a holding company under PUHCA as long as (a) our direct and
indirect ownership, or operation of, projects used for the generation,
transmission or distribution of electric energy for sale is limited to interests
in QFs, and (b) we do not hold a direct or indirect interest in any company
which owns or operates facilities used for the distribution at retail (other
than distribution only in enclosed portable containers, or distribution to
tenants or employees of the company operating such facilities for their own use
and not for resale) of natural or manufactured gas for heat, light or power.
Under PURPA, as implemented by the FERC, a vertically-integrated regulated
electric utility company must purchase electricity at its Avoided Cost from a
QF. The regulated electric company could refuse to purchase that electricity if
QF status was lost and may be entitled to certain remedies for breach of an
existing PPA.

If any of our projects were to lose its status as a QF, then it, or its parent
or affiliate, may no longer fall outside the scope of, or otherwise be entitled
to exemption from, PUHCA, the Federal Power Act ("FPA")


24


and state laws and regulations. This could subject the our projects to rate (and
other) regulation as a public utility under the FPA and state law and could
result in the Company, and certain of its affiliates inadvertently becoming
public utility holding companies by owning, controlling, or holding with power
to vote, at least 10% of the outstanding voting securities of, or otherwise
controlling, an entity that would constitute a public utility company or a
holding company for the purposes of PUHCA. This could cause the remaining
projects that are QFs to lose their status due to ownership restrictions on QFs
under PURPA and FERC's implementing regulations. Any of these consequences would
result in substantial regulatory burdens, and possibly insurmountable
impediments, to affected entities with regard to conducting business in the
manner currently contemplated.

In addition, loss of QF status could trigger defaults under covenants to
maintain QF status in various purchase and loan agreements and result in
termination, penalties or acceleration of indebtedness under such agreements,
plus interest. Accordingly, the ability of USEB to meet its repayment
obligations under its debt obligations to Countryside Fund is dependent upon the
Biogas Projects maintaining QF status. A facility may lose its QF status on a
retroactive or a prospective basis.

While certain legislation to repeal and amend certain sections of PURPA, which
had been pending before the United States Senate and the United States House of
Representatives, would have protected each existing contract of QFs from a
repeal of the obligation of electric utilities to purchase from QFs under their
existing PPAs, there is no guarantee that any future legislation, as passed into
law, would contain provisions to grandfather such PPAs. Loss of QF status for
any Biogas Project could lead to, among other things, a requirement that the
Biogas Project refund payments previously made under the PPAs, with interest.

Under the FPA, FERC has exclusive rate-making jurisdiction over wholesale sales
of electric energy and the transmission of electric energy in interstate
commerce. These rates may be determined on either a cost-of-service basis or, if
the applicable standards are met, using a market-based approach. If any Biogas
Project were to lose its QF status, the rates set forth in the applicable PPA
would have to be filed with FERC and would be subject to initial and potentially
subsequent reviews by FERC under the FPA, which could result in reductions to
such rates.

Loss of QF status by any Illinois-based Biogas Project would cause it also to
lose its QSWEF status.

A significant source of US Biogas revenues are generated from special tax
credits provided for the sale of landfill gas to third parties and these credits
will expire.

USEB benefits from Section 29 of the Code. Section 29 provides that owners of
biogas facilities that collect and sell biogas as a fuel are permitted to reduce
their annual federal income tax liability with a tax credit based upon the
volume of the biogas sold to unrelated third parties. Historically USEB has sold
interests in the Gascos producing these tax credits to financial investors and
such sales have provided USEB with additional revenue. Part of the purchase
price is contingent on gas production. If gas production were to fall, USEB's
revenues may decline. USEB has agreed to indemnify the financial investors that
have purchased interests in the Gascos for certain losses suffered by such
investors in the event that the Section 29 tax credits are denied in certain
circumstances.

The tax credit is available for biogas produced at projects that had existing
gas collection facilities that were placed in service before July 1, 1998. The
tax credits are available for qualifying projects until December 31, 2007,
except that projects which were in operation prior to 1993 qualified for the tax
credits only through 2002. Therefore the universe of projects eligible for tax
credits is limited. From time to time, legislation has been proposed to renew
Section 29 tax credits, but it is uncertain whether this legislation will be
enacted, what its final form will be, and in particular whether such legislation
would extend Section 29 tax credits for existing projects or make them available
only for new projects. The unavailability of these tax credits for future biogas
projects may make such future projects less attractive for investment. The
expiration of these tax credits for existing projects may make some biogas
projects financially unviable and reduce USEB's revenues.

Neither USEB, any of the Gascos, nor any Gasco partner has received a ruling
from the IRS confirming that the biogas facilities of the Gascos meet the
requirements of Section 29, that the sales of interests in the Gascos by USEB
were structured in a way that would entitle the buyers to Section 29 credits, or
that sales of methane from the Gascos to the Gencos or Transcos generate Section
29 credits. While a ruling is not


25


required, as is the case with any Section 29 transaction in which a ruling is
not obtained, the IRS may challenge the availability of Section 29 credits to
any of the Gascos or to its partners.

We may be unable to acquire or renew the numerous permits and approvals required
to operate power facilities and district energy systems.

The construction and operation of energy projects require numerous permits and
approvals from governmental agencies, as well as compliance with environmental
laws and other regulations. While we believe that we are in substantial
compliance with all applicable regulations and that each of our projects has the
requisite approvals, our projects require compliance with a varied and complex
body of laws and regulations that both public officials and private individuals
may seek to enforce. There can be no assurance that new laws or amendments to
existing laws which would have a materially adverse affect will not be adopted,
nor can there be any assurance that we will be able to obtain all necessary
permits and approvals for proposed projects or that completed facilities will
comply with all applicable permit conditions, statutes and regulations. In
addition, regulatory compliance for the construction of new facilities is a
costly and time consuming process which may necessitate substantial expenditures
to obtain permits, and may create a significant risk of expensive delays or loss
of value if a project is unable to function as planned due to changing
requirements or local opposition.

Environmental Health and Safety Risks

Our projects are regulated by numerous and significant laws, including statutes,
regulations, by-laws, guidelines, policies, directives and other requirements
governing or relating to, among other things: air emissions; discharges into
water; the storage, handling, use, transportation and distribution of dangerous
goods and hazardous and residual materials, such as chemicals; the prevention of
releases of contaminants, pollutants or hazardous materials into the
environment; the presence, remediation and monitoring of contaminants,
pollutants or hazardous materials in soil and water, including surface or
groundwater, both on and off site; land use and zoning matters; and workers'
health and safety matters. As such, the operation of the projects and systems
carry an inherent risk of environmental, health and safety liabilities
(including potential civil actions, compliance or remediation orders, fines and
other penalties), and may result in the projects and systems being involved from
time to time in administrative and judicial proceedings relating to such
matters, which could have a material adverse effect on the Company's business,
financial condition and results of operations.

Our projects have obtained environmental permits that are required for their
operation. Although we believe that the operations of the facilities are
currently in material compliance with applicable environmental laws, including
permits required for the operation of the projects and systems and although
there are environmental monitoring and reporting systems in place with respect
to all the projects and systems, there is no guarantee that more stringent laws
will not be imposed, that there will not be more stringent enforcement of
applicable laws or that such systems may not fail, which may result in material
expenditures. Failure by the projects and systems to comply with any
environmental, health or safety requirements, or increases in the cost of such
compliance, including as a result of unanticipated liabilities (whether as a
result of newly discovered issues or known issues that have not been quantified)
or expenditures for investigation, assessment, remediation or monitoring, could
result in additional expense, capital expenditures, restrictions and delays in
the projects' and systems' activities, the extent of which cannot be predicted
and which may be material.

Resource Availability and Constancy

The Biogas Projects rely on the extraction of biogas from public and
privately-owned landfill sites. The decomposition of waste causes the release of
methane gas, carbon dioxide, and other gaseous material into the ground and
atmosphere. Landfills typically can emit biogas for more than 30 years.
Landfills generally produce biogas in increasing volumes during their initial
years of operation and for several years after they are closed. Then the biogas
volume gradually declines over ensuing years. Therefore each project is likely
to produce less revenue after the first years following the landfill closing,
and may over time become unprofitable as the volume of biogas continues to
decline. Thus in many cases it is not profitable to maintain projects more than
a certain number of years following the closing of the related landfill. The
quantity of available biogas is determined by numerous factors including,
without limitation, filling pattern of the landfill, the composition of the
waste, compaction, moisture content, time and climatic conditions. These


26


factors are beyond the control of USEB. Further, they constitute future events
that cannot be predicted with certainty. In the event that the amount of biogas
produced by a landfill is less than expected, the methane component of the gas
is less than expected or the duration of biogas emission is shorter than
expected, the sale of biogas by USEB, the production of electricity by USEB
and/or the amount of revenue received by USEB from the sale of Section 29 tax
credits may be adversely affected in a material manner.

Generally with respect to each Biogas Project: (i) the Gasco's right to extract
biogas from the landfill is subject to a long-term gas rights agreement with the
landfill owner; (ii) the Genco or Transco's right to purchase biogas from the
Gasco is subject to a long-term gas purchase agreement with the Gasco; and (iii)
the Genco or Transco's right to occupy the landfill is subject to a long-term
lease with the landfill owner. In certain cases, based on the occurrence of
certain events, including an event of default by the Gasco, Genco or Transco the
contract counterparty may terminate the applicable agreement or lease prior to
the expiry of its term. While USEB believes that the Biogas Projects, Gascos,
Gencos and Transco's are in material compliance with all of their respective
agreements or leases, if one of the foregoing agreements or leases was
terminated prematurely, for any reason, the relevant Biogas Project would be
affected in a material adverse manner.

QSWEF Status

All of USEB's Illinois-based Biogas Projects qualify as QSWEFs and therefore
benefit from the Rate Incentive Program. The Rate Incentive Program permits such
QSWEFs to sell electricity that they generate to public utilities in whose
service areas the QSWEFs are located at a rate that during the period of the
Rate Incentive Program (a) is equal to the average amount per kWh paid by the
local governmental entities for electricity (with certain exceptions) in such
QSWEFs' respective jurisdictions and (b) typically exceeds the public utilities'
respective Avoided Costs. Eligibility for the Rate Incentive Program is based on
compliance with the requirements contained in the Illinois Public Utility Act,
regulations promulgated by the ICC ("ICC Regulations") and the ICC Orders issued
by the ICC respecting QSWEFs. A QSWEF would lose all or some of the benefits
provided by the Rate Incentive Program if it were found to be in non-compliance
with these requirements. Similarly, a QSWEF may lose all or some of such
benefits in the event of modifications to the Illinois Public Utility Act, the
ICC Regulations, the ICC Orders or ICC policies or repeal of the Illinois Public
Utility Act. In such event, the revenues and profits from the affected QSWEFs
may be materially adversely impacted.

The rate incentive received by each QSWEF, which must be reimbursed to the State
of Illinois, represents the excess of the Gross Contract Rate received by such
QSWEF from the public utility less the public utility's Avoided Cost. Therefore,
the QSWEF's rate incentive and corresponding reimbursement obligation will
depend, among other things, on the level of such Avoided Cost, which is beyond
the control of the QSWEF.

Loss of QSWEF status could trigger defaults under covenants to maintain QSWEF
status in various purchase and loan agreements (including the loans agreements
with Countryside Fund) and result in termination, penalties or acceleration of
indebtedness under such agreements plus interest.

ICC Repayment Liability

The ICC has broad powers to enforce and interpret the provisions of the Illinois
Public Utility Act, ICC Regulations and ICC Orders. In the future, the ICC may
promulgate new regulations and establish new policies or modify existing
regulations and policies. Such actions, if taken and upheld by the courts, may
have a materially adverse impact on some or all of the Illinois-based Biogas
Projects. The ICC has enforcement authority to direct each owner of an
Illinois-based Biogas Project to satisfy its reimbursement obligations, which
authority may extend to, among other matters, the legal entity that is to hold
the ICC Reimbursement Account, the amount of funds to be deposited annually in
the ICC Reimbursement Account and the kinds of investments in which such funds
are or may be invested. Although the ICC has considered imposing and has imposed
such requirements in the past as a condition to its approval of certain proposed
transactions, it cannot be predicted with certainty whether and under what
similar or different circumstances the ICC may attempt to impose any of such
requirements in the future. However, provided the QSWEFs (a) remain in
compliance in good faith with the current Illinois Public Utilities Act, ICC
Regulations and ICC Orders, (b) make timely deposits to their ICC Reimbursement
Accounts that, together with earnings thereon from a reasonable and balanced
investment portfolio, are reasonably sufficient to


27


meet the QSWEFs' reimbursement obligations to the State of Illinois, and (c) do
not seek approval from the ICC for any transactions that require ICC approval or
modify existing ICC Orders, the we have no reason to believe that the ICC will
take any such actions respecting the QSWEFs in a manner materially adverse to
them.

We believe that, as a result of the Countryside Fund transaction and related
transactions, there will be no change in the ownership of any of such Projects
as such ownership is currently construed by the ICC under its interpretation of
applicable regulations of FERC. However, as is described above, the ICC has
broad powers to enforce and interpret the relevant Illinois statutes, the ICC
Regulations and the ICC Orders. It is therefore not possible to predict with any
degree of certainty whether in a particular case the ICC will determine that any
degree or percentage of ownership is to be attributed to any particular entity.
Nonetheless, based on a consideration of the factors that the ICC considers
relevant in a determination of the degree or percentage of ownership to be
attributed to any particular entity, we believe that there is no reason to
conclude that the ICC would attribute a percentage ownership to any entity in
respect of the Biogas Projects located in Illinois so as to cause such projects
to lose their status as QSWEFs or to constitute a change of ownership of such
Biogas Projects, as a result of the Countryside Fund transaction and related
transactions. In the event the ICC concluded that such transactions constituted
a change in ownership of such Biogas Projects, such Biogas Projects would be
required to seek ICC approval of such change in ownership and would have to
establish that, notwithstanding such change in ownership, such Biogas Projects
still met the requirements of a QSWEF. We cannot predict how the ICC might
exercise its discretion or its enforcement authority in such a circumstance.

Under the Rate Incentive Program, each QSWEF must begin to repay the incentive
it has received to the State of Illinois commencing no later that the earlier of
the date the QSWEF has paid or otherwise satisfied in full the capital costs or
indebtedness incurred in developing its facility and 10 years after the date its
facility commenced commercial operation, with such repayment to be completed no
later than the earlier of 20 years after such date of commencement of commercial
operation and the end of its facility's actual useful life. In order to meet
this obligation, each QSWEF has established an ICC Reimbursement Account in
which it has deposited and will continue to deposit a portion of the incentive
as it is received with the expectation that such deposits, when invested
prudently in a balanced portfolio managed by professional advisors, will over
time generate sufficient earnings to permit such QSWEF to meet its reimbursement
obligations to the State of Illinois as and when they come due. However, in the
event the ICC exercised its enforcement authority in a manner that resulted in a
lower return than expected or the investments in the ICC Reimbursement Account
otherwise do not generate the expected earnings, a QSWEF may not have sufficient
funds to meet its obligations to reimburse the State of Illinois when such
obligations come due with potential material adverse consequences to the
affected QSWEF.

Our international investments may face uncertainties.

We have financial interests in district energy systems in Sweden. International
investments are subject to unique risks and uncertainties relating to the
political, social and economic structures of the countries in which we invest.
Risks specifically related to investments in non-United States projects may
include currency fluctuations, increased taxation, increased regulation,
restrictions on foreign ownership and United States taxes on income earned
abroad which is repatriated to the United States and in some cases, which is not
repatriated to the United States. In addition, the projects underlying our
international investments are subject to the risks affecting energy projects
generally. EnergiSystem is currently involved in litigation with Navarme Sverige
AB in Sweden. If Navarme Sverige AB prevails in such litigation, SEFL's
investment in EnergiSystem and the Company's investment in SEFL could be
affected in a material adverse manner. From time to time, the lender to SEFL and
EnergiSystem has alleged defaults under its loan to such entities. SEFL and
EnergiSystem have either cured or disputed the lender's claimed defaults. If
defaults occur under the loans which are not cureable or which are not cured and
the lender accelerates its loans to SEFL and/or EnergiSystem, SEFL's investment
in EnergiSystem AB and the Company's investment in SEFL may be affected in a
materially adverse manner.

OTHER RISKS

The price of our common stock is volatile.

The market price for our common stock has been volatile in the past, and several
factors could cause our


28


stock to fluctuate substantially in the future for reasons related and unrelated
to our performance. The current market price may not be indicative of future
market prices.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

Fluctuations in interest rates, foreign currency exchange rates and commodity
prices do not significantly affect the Company's financial position or results
of operations.

ITEM 8. FINANCIAL STATEMENTS

See the Financial Statements and Independent Auditors' Report which are attached
hereto as the "Financial Statement Appendix" on pages F-1 through F-27.

SUPPLEMENTARY FINANCIAL INFORMATION



2003 (dollars in thousands except per share amounts)
====================================================================================================================
First Quarter Second Quarter Third Quarter Fourth Quarter
====================================================================================================================

Operating Revenues* $5,883 $6,207 $6,390 $6,519
- --------------------------------------------------------------------------------------------------------------------
Operating Income 1,657 1,121 741 1,516
- --------------------------------------------------------------------------------------------------------------------
Net income for Common Stock 143 1,370 315 (818)
- --------------------------------------------------------------------------------------------------------------------
Basic Earnings per Common Stock 0.01 0.11 0.03 (0.07)
- --------------------------------------------------------------------------------------------------------------------
Diluted Earnings per Common Stock 0.01 0.08 0.02 (0.07)
- --------------------------------------------------------------------------------------------------------------------


* SEFL was accounted for using the equity method of accounting in 2003



2002 (dollars in thousands except per share amounts)
====================================================================================================================
First Quarter Second Quarter Third Quarter Fourth Quarter
====================================================================================================================

Revenues* $ 6,506 $7,823 $ 7,459 $ 6,832
- --------------------------------------------------------------------------------------------------------------------
Operating Income (2,179) (434) 1,556 (4,653)
- --------------------------------------------------------------------------------------------------------------------
Net income for Common Stock (5,780) 95 191 (11,485)
- --------------------------------------------------------------------------------------------------------------------
Basic Earnings per Common Stock (0.47) 0.01 0.02 (0.94)
- --------------------------------------------------------------------------------------------------------------------
Diluted Earnings per Common Stock (0.47) .01 0.01 (0.94)
- --------------------------------------------------------------------------------------------------------------------


* SEFL was consolidated in 2002

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

As of the end of the period covered by this report, the Company carried out an
evaluation, under the supervision and with the participation of the Company's
management, including the Company's Chief Executive Officer and the Company's
Principal Accounting Officer, of the effectiveness of the design and operation
of the Company's disclosure controls and procedures (as defined in Rules
13a-15(e) and 15d-15(e) under the Securities and Exchange Act of 1934, as
amended). Based on this evaluation, the Company's Chief Executive Officer and
Principal Accounting Officer concluded that the Company's disclosure controls
and procedures were effective, in timely alerting them to material information
relating to the Company required to be included in the Company's periodic
filings with the Securities and Exchange Commission. It should be noted that in
designing and evaluating the disclosure controls and procedures, management
recognized that any controls and procedures, no matter how well designed and
operated, can provide only reasonable assurance of achieving the desired control
objectives, and management necessarily was required to apply its judgment in
evaluating the cost-benefit relationship of possible controls and procedures.
The Company has designed its disclosure controls and procedures to reach a level
of reasonable assurance of achieving desired control objectives and, based on
the evaluation described above, the Company's Chief Executive Officer and
Principal Accounting Officer concluded that the Company's disclosure controls
and procedures were effective at reaching that level of reasonable assurance.

There was no change in the Company's internal control over financial reporting
(as defined in Rules 13a-15(f) and 15d-15(f) under the Securities and Exchange
Act of 1934, as amended) during the Company's most recently completed fiscal
quarter that has materially affected, or is reasonably likely to materially
affect, the Company's internal control over financial reporting.

PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE COMPANY

The required information is incorporated by reference from our definitive proxy
statement to be filed with the SEC by April 29, 2004.

ITEM 11. EXECUTIVE COMPENSATION

The required information is incorporated by reference from our definitive proxy
statement to be filed with the SEC by April 29, 2004.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The required information is incorporated by reference from our definitive proxy
statement to be filed with the SEC by April 29, 2004.


29


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

The required information is incorporated by reference from our definitive proxy
statement to be filed with the SEC by April 29, 2004.

ITEM 14. EXHIBITS, LISTS AND REPORTS ON FORM 8-K

Item 6 - Exhibits and Reports on Form 8-K

(a) Exhibits

- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
2.1 Merger Agreement by and between the Company, USENVIRO Merger Corp.,
American Enviro-Services, Inc., and the shareholders of American
Enviro-Services, dated as of August 4, 1997 (4)
- --------------------------------------------------------------------------------
2.2 Subscription Agreement dated as of August 23, 2000, by and among
U.S. Energy System Castlebridge, LLC ("USE Sub"),
Kemper-Castlebridge, Inc., ("KC"), GKM II Corporation ("GKM") and
Castlebridge Partners, LLC ("Castlebridge") (9)
- --------------------------------------------------------------------------------
2.3 Agreement and Plan of Reorganization and Merger dated as of
November 28, 2000, by and among U.S. Energy Systems, Inc. ("US
Energy"), USE Acquisition Corp. ("US Energy Sub"), and Zahren
Alternative Power Corp. ("Zapco") (without schedules or exhibits)
(the "Merger Agreement"). (11)
- --------------------------------------------------------------------------------
2.4 Amendment No 1 dated as of the 11th day of December, 2000 to the
Merger Agreement. (11)
- --------------------------------------------------------------------------------
2.5 Amendment No. 2 dated as of the 19th day of December, 2000 to the
Merger Agreement. (15)
- --------------------------------------------------------------------------------
2.6 Amendment No. 3 dated as of the 19th day of January, 2001 to the
Merger Agreement. (15)
- --------------------------------------------------------------------------------
2.7 Amendment No. 4 dated as of the 23rd day of February, 2001 to the
Merger Agreement. (15)
- --------------------------------------------------------------------------------
2.8 Amendment No. 5 dated April 30, 2001 to the Merger Agreement. (16)
- --------------------------------------------------------------------------------
2.9 Stock Purchase Agreement dated as of June 11, 2001 by and between
USE Canada Acquisition Corp. and Trigen-Canada Company LLC. (17)
- --------------------------------------------------------------------------------
2.10 Amendment No. 6 dated as of November 1, 2002 to the merger
Agreement. (18)
- --------------------------------------------------------------------------------
2.11 Amendment No. 7 dated as of the 10th day of February, 2003 to the
Merger Agreement. (19)
- --------------------------------------------------------------------------------
2.12 Amendment No. 8 dated as of the 13th day of March, 2003 to the
Merger Agreement. (19)
- --------------------------------------------------------------------------------
2.13 Amendment No. 9 dated as of the 15th day of April, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
2.14 Amendment No. 10 dated as of the 14th day of May, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
2.15 Amendment No. 11 dated as of the 11th day of June, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
2.16 Amendment No. 12 dated as of the 29th day of June, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
2.17 Amendment No. 13 dated as of the 11th day of July, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
2.18 Amendment No. 14 dated as of the 28th day of July, 2003 to the
Merger Agreement
- --------------------------------------------------------------------------------
3.1 Restated Certificate of Incorporation of the Company filed with the
Secretary of State of Delaware. (1)
- --------------------------------------------------------------------------------
3.2 By-Laws of the Company (2)
- --------------------------------------------------------------------------------

30


- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
3.3 Articles of Organization of Steamboat Envirosystems, L.C (1)
- --------------------------------------------------------------------------------
3.4 Certificate of Amendment of Amended and Restated Certificate of
Incorporation of the Company (10)
- --------------------------------------------------------------------------------
3.5 Certificate of Increase of Series A Convertible Preferred Stock of
the Company (10)
- --------------------------------------------------------------------------------
3.6 Amended and Restated By-Laws of US Energy (11)
- --------------------------------------------------------------------------------
3.7 Form of Certificate of Designation for US Energy's Series C
Preferred Stock (15)
- --------------------------------------------------------------------------------
3.8 Form of Certificate of Designation for US Energy's Series D
Preferred Stock (15)
- --------------------------------------------------------------------------------
3.9 Certificate of Correction to Certificate of Designation of Series A
Preferred Stock (15)
- --------------------------------------------------------------------------------
3.10 Certificate of Correction to Certificate of Designation of Series B
Preferred Stock (15)
- --------------------------------------------------------------------------------
4.1 Specimen Stock Certificate (1)
- --------------------------------------------------------------------------------
4.2 Form of Warrant (1)
- --------------------------------------------------------------------------------
4.3 Form of Warrant Agreement (1)
- --------------------------------------------------------------------------------
4.4 Form of Representative's Purchase Option (1)
- --------------------------------------------------------------------------------
4.5 Certificate of Designation of Series A Convertible Preferred Stock
of the Company as filed with the Secretary of State of Delaware on
March 23, 1998 (7)
- --------------------------------------------------------------------------------
4.6 Certificate of Designation of Series B Convertible Preferred Stock
of the Company as filed with the Secretary of the State of Delaware
(14)
- --------------------------------------------------------------------------------
4.7 Amended and Restated Plan of Recapitalization dated as of July 31,
2000 by and between the Company and the parties identified therein.
(15)
- --------------------------------------------------------------------------------
4.8 Form of Series B Warrant to Purchase Shares of Common Stock (10)
- --------------------------------------------------------------------------------
4.9 Form of Series C Redeemable Common Stock Purchase Warrant of US
Energy (11)
- --------------------------------------------------------------------------------
10.1 Plan of Reorganization of Cogenic Energy Systems, Inc. (2)
- --------------------------------------------------------------------------------
10.2 8% Convertible Subordinated Debenture due 2004 (2)
- --------------------------------------------------------------------------------
10.5 Purchase Agreement, dated as of January 24, 1994, between Lehi
Co-Gen Associates, L.C. and Lehi Envirosystems, Inc. (2)
- --------------------------------------------------------------------------------
10.6 Operating Agreement among Far West Capital, Inc., Suma Corporation
and Lehi Envirosystems, Inc. dated January 24, 1994 (2)
- --------------------------------------------------------------------------------
10.7 Form of Purchase and Sale Agreement between Far West Capital, Inc.,
Far West Electric Energy Fund, and L.P., 1-A Enterprises, the
Company and Steamboat LLC (1)
- --------------------------------------------------------------------------------
10.8 Form of Operation and Maintenance Agreement between Steamboat LLC
and S.B. Geo, Inc. (1)
- --------------------------------------------------------------------------------
10.9 Letter Agreement, dated as of November 8, 1994, between the
Company, PSC Cogeneration Limited Partnership, Central Hudson
Cogeneration, Inc. and Independent Energy Finance Corporation (1)
- --------------------------------------------------------------------------------
10.10 Agreement among the Company, Plymouth Envirosystems, Inc., IEC
Plymouth, Inc. and Independent Energy Finance Corporation dated
November 16, 1994 (1)
- --------------------------------------------------------------------------------
10.11 Amended and Restated Agreement of Limited Partnership of Plymouth
Cogeneration Limited Partnership between PSC Cogeneration Limited
Partnership, Central Hudson Cogeneration, Inc. and Plymouth
Envirosystems, Inc. dated November 1, 1994 (1)
- --------------------------------------------------------------------------------

31


- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
10.12 Amended and Restated Agreement of Limited Partnership of PSC
Cogeneration Limited Partnership among IEC Plymouth, Inc.,
Independent Energy Finance Corporation and Plymouth Envirosystems,
Inc. dated December 28, 1994 (1)
- --------------------------------------------------------------------------------
10.13 Purchase and Sale Agreement, dated as of December 31, 1995, between
the Company, Far West Capital, Inc., Far West Electric Energy Fund,
L.P., 1-A Enterprises and Steamboat Enviro systems, LLC (1)
- --------------------------------------------------------------------------------
10.13(a) Letter Agreement, dated September 25, 1996, between the Company and
Far West Capital, Inc. (1)
- --------------------------------------------------------------------------------
10.16 Security Agreement and Financing Statement among the Company, Lehi
Envirosystems, Inc., Plymouth Envirosystems, Inc. and Anchor
Capital Company, LLC dated June 14, 1995, as amended (1)
- --------------------------------------------------------------------------------
10.20 Lease dated September 1, 1995 between the Company and Gaedeke
Holdings, Ltd. (1)
- --------------------------------------------------------------------------------
10.21 Documents related to Private Placement (1)
- --------------------------------------------------------------------------------
10.21(a) Certificate of Designations (1)
- --------------------------------------------------------------------------------
10.22 Purchase Agreement between the Company and Westinghouse Electric
Corporation dated as of November 6, 1995 and amendments thereof (1)
- --------------------------------------------------------------------------------
10.25(a) Long-Term Agreement for the Purchase and Sale of Electricity
Between Sierra Pacific Power Company and Far West Capital, Inc.
dated October 29, 1988 (1)
- --------------------------------------------------------------------------------
10.25(b) Assignment of Interest, dated December 10, 1988 by and between Far
West Capital, Inc. and 1-A Enterprises (1)
- --------------------------------------------------------------------------------
10.25(c) Letter dated August 18, 1989 by Gerald W. Canning, Vice President
of Electric Resources, consenting to the Assignment of Interest on
behalf of Sierra Pacific Power Company (1)
- --------------------------------------------------------------------------------
10.26(a) Agreement for the Purchase and Sale of Electricity, dated as of
November 18, 1983 between Geothermal Development Associates and
Sierra Pacific Power Company (1)
- --------------------------------------------------------------------------------
10.26(b) Amendment to Agreement for Purchase and Sale of Electricity, dated
March 6, 1987, by and between Far West Hydroelectric Fund, Ltd. and
Sierra Pacific Power Company (1)
- --------------------------------------------------------------------------------
10.27 Loan and Option Agreement dated August, 1996 by and among NRG
Company, LLC and Reno Energy, LLC and ART, LLC and FWC Energy, LLC,
and amendments thereto (1)
- --------------------------------------------------------------------------------
10.28 Promissory Note dated August 9, 1996 for $300,000 from Reno Energy,
LLC to NRG Company, LLC (1)
- --------------------------------------------------------------------------------
10.29 Letter of Intent dated July 15, 1996 on behalf of Reno Energy, LLC
(1)
- --------------------------------------------------------------------------------
10.30 Limited Liability Company Operating Agreement of NRG Company, LLC
dated as of September 8, 1996, and amendments thereto (1)
- --------------------------------------------------------------------------------
10.31 Form of Limited Liability Company Operating Agreement of Steamboat,
Envirosystems, L.C. dated as of October, 1996 (1)
- --------------------------------------------------------------------------------
10.32 Form of Debenture Conversion Agreement (1)
- --------------------------------------------------------------------------------
10.33(a) First Amended and Restated Loan and Option Agreement, dated April
9, 1997, by and between USE Geothermal, LLC, and Reno Energy LLC,
ART, LLC and FWC Energy, LLC (3)
- --------------------------------------------------------------------------------
10.33(b) Note in the amount of $1,200,000, dated as of April 9, 1997, made
by Reno Energy LLC in favor of USE Geothermal, LLC (3)
- --------------------------------------------------------------------------------
10.33(c) Security Agreement, dated as of April 9, 1997, made by Reno Energy
LLC in favor of USE Geothermal, LLC (3)
- --------------------------------------------------------------------------------
10.33(d) Form of Security Agreement and Collateral Assignment, entered into
by and between USE Geothermal, LLC and both FWC Energy LLC and ART
LLC (3)
- --------------------------------------------------------------------------------


32


- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
10.33(e) Guaranty Agreement, dated as of April 9, 1997, made by FWC Energy
LLC and ART LLC in favor of USE Geothermal, LLC (3)
- --------------------------------------------------------------------------------
10.34 1996 Stock Option Plan (5)
- --------------------------------------------------------------------------------
10.35 Form of 9% Convertible Subordinated Secured Debenture due 2004 (6)
- --------------------------------------------------------------------------------
10.36 Form of Employment Agreement by and between the Company and Howard
Nevins (4)
- --------------------------------------------------------------------------------
10.37 Subscription Agreement, dated March 20, 1998, between the Company
and Energy Systems Investors, LLC (7)
- --------------------------------------------------------------------------------
10.38 Registration Rights Agreement, dated March 20, 1998, between the
Company and Energy Systems Investors, LLC (7)
- --------------------------------------------------------------------------------
10.39 Amended and Restated Stock Option Agreement between the Company and
Lawrence I. Schneider dated May 10, 2000 with respect to 750,000
shares of the Company Common Stock (10)
- --------------------------------------------------------------------------------
10.40 Amended and Restated Stock Option Agreement between the Company and
Goran Mornhed dated May 10, 2000 with respect to 1,000,000 shares
of the Company Common Stock (10)
- --------------------------------------------------------------------------------
10.41 Pledge Agreement dated as of July 31, 2000 by and between the
Company and Energy Systems Investors, L.L.C. (10)
- --------------------------------------------------------------------------------
10.42 Limited Recourse Promissory Note dated July 31, 2000 issued by
Energy Systems Investors, L.L.C. in favor of the Company (10)
- --------------------------------------------------------------------------------
10.43 Stockholders' and Voting Agreement dated as of November 28, 2000 by
and among AJG Financial Services, Inc., Bernard Zahren,
Environmental Opportunities Fund, Environmental Opportunities
Fund/Cayman, Finova Mezzanine Capital Corp., Frederic Rose, M & R
Associates, Martin F. Laughlin, Michael J. Carolyn and Richard J.
Augustine (collectively, the "Zapco Stockholders"), US Energy,
Cinergy Solutions, Inc. ("Cinergy Solutions") and certain
stockholders of US Energy. (11)
- --------------------------------------------------------------------------------
10.44 Termination Fee Agreement dated as of November 28, 2000 by and
among US Energy, Zapco and Cinergy Energy Solutions, Inc. ("Cinergy
Energy"). (11)
- --------------------------------------------------------------------------------
10.45 Indemnification Agreement dated as of November 28, 2000 by and
among the Zapco Stockholders, Zapco, US Energy, US Energy Sub and
Cinergy Energy. (11)
- --------------------------------------------------------------------------------
10.46 Escrow Agreement dated November 28, 2000 by and among the Zapco
Stockholders, Zapco, US Energy, US Energy Sub, Cinergy Energy and
Tannenbaum Helpern Syracuse & Hirschtritt LLP as Escrow Agent. (11)
- --------------------------------------------------------------------------------
10.47 Registration Rights Agreement dated November 28, 2000 by and among
US Energy and the Zapco Stockholders. (11)
- --------------------------------------------------------------------------------
10.48 Employment Agreement dated November 28, 2000 by and between US
Energy and Bernard Zahren. (11)
- --------------------------------------------------------------------------------
10.49 Form of Stock Option Agreement to be entered into by and between US
Energy and Bernard Zahren. (11)
- --------------------------------------------------------------------------------
10.50 Performance Guaranty dated as November 28, 2000 of US Energy.(11)
- --------------------------------------------------------------------------------
10.51 Performance Guaranty of Cinergy Solutions Holding Company, Inc.
dated as of November 28, 2000. (11)
- --------------------------------------------------------------------------------
10.52 Subscription Agreement dated as of November 28, 2000 by and among
US Energy, US Energy Sub and Cinergy Energy. (11)
- --------------------------------------------------------------------------------
10.53 Stockholders Agreement dated as of November 28, 2000 by and among
US Energy, US Energy Sub and Cinergy Energy. (11)
- --------------------------------------------------------------------------------
10.54 Indemnification Agreement dated as of November 28, 2000 by and
among US Energy, US Energy Sub and Cinergy Energy. (11)
- --------------------------------------------------------------------------------
10.55 Employment Agreement dated as of May 10, 2000 by and between the
Company and Lawrence Schneider (13)
- --------------------------------------------------------------------------------

33


- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
10.56 Employment Agreement dated as of May 10, 2000 by and between the
Company and Goran Mornhed (13)
- --------------------------------------------------------------------------------
10.57 2000 Executive Incentive Compensation Plan (13)
- --------------------------------------------------------------------------------
10.58 2000 Executive Bonus Plan (13)
- --------------------------------------------------------------------------------
10.59 Stock Option Agreement between the Company and Lawrence Schneider
with respect to 1,000,000 shares of Common Stock (13)
- --------------------------------------------------------------------------------
10.60 Stock Option Agreement between the Company and Goran Mornhed with
respect to 187,500 shares of Common Stock (13)
- --------------------------------------------------------------------------------
10.61 Stock Option Agreement between the Company and Goran Mornhed with
respect to 562,500 shares of Common Stock (13)
- --------------------------------------------------------------------------------
10.62 Standby Payment Agreement dated as of June 11, 2001 by and among U.
S. Energy Systems, Inc., USE Canada Acquisition Corp. and AJG
Financial Services, Inc.(17)
- --------------------------------------------------------------------------------
10.63 Promissory Note dated June 11, 2001 made by USE Canada Acquisition
Corp. in favor of Trigen - Canada Company LLC (17)
- --------------------------------------------------------------------------------
10.64 Guaranty made as of June 11, 2001 by USE Energy Systems, Inc. in
favor of Trigen - Canada Company LLC and the other person
identified therein (17)
- --------------------------------------------------------------------------------
10.65 Development Incentive Plan (18)
- --------------------------------------------------------------------------------
10.66 Corporate Incentive Plan (18)
- --------------------------------------------------------------------------------
10.67 Finance Incentive Plan (18)
- --------------------------------------------------------------------------------
10.68 Employment Agreement dated as of August 20, 2001 between the
Company and Allen J. Rothman (18)
- --------------------------------------------------------------------------------
10.69 Employment Agreement dated as of January 1, 2002 between the
Company and Edward Campana (18)
- --------------------------------------------------------------------------------
10.70 Employment Agreement dated as of September 8, 2000 between the
Company and Henry Schneider (18)
- --------------------------------------------------------------------------------
10.71 Shareholder Agreement dated March 2002 by and among Scandinavian
Energy Finance Limited, Endoray Investments BV, US Energy Systems,
Inc., EIC Investments (Jersey) Limited and A&A EIC Electricity
Investment Company (18)
- --------------------------------------------------------------------------------
10.72 Financing Agreement dated as of March 11, 2002 by and between
Scandinavian Energy Finance Limited and Gigantissimo 2321 AB n/k/a
EnergiSystems Sverige AB (18)
- --------------------------------------------------------------------------------
10.73 Conditions on Gigantissimo 2321 AB n/k/a EnergiSystems Sverige AB's
Convertible Debenture Loan 2002-2027 (18)
- --------------------------------------------------------------------------------
10.74 Subordinated Loan Agreement dated as of March 11, 2002 between
Gigantissimo 2324 AB to be renamed Narvarme Acquisition I and AB
Scandinavian Energy Finance Limited (18)
- --------------------------------------------------------------------------------
10.75 Shareholders Agreement dated as of March 11, 2002 by and among
Goran Ernstson, Scandinavian Energy Finance Limited,
Lansforsakringar Liv Forsakringsaktiebolag for the shares of
Gigantissimo 2321 AB n/k/a EnergiSystem Sverige AB (18)
- --------------------------------------------------------------------------------
10.76 Security Holders Agreement dated as of March 11, 2002 between
Scandinavian Energy Finance Limited and Goran Ernstson (18)
- --------------------------------------------------------------------------------
10.77 Option Agreement dated as of March 7, 2002 by and between Goran
Ernstson and Scandinavian Energy Finance Limited (18)
- --------------------------------------------------------------------------------
10.78 Amendment No. 1 to Escrow Agreement dated as of May 22, 2001 by and
among the Zapco stockholders, Zapco, US Energy, USE Acquisition
Corp., Cinergy Energy and Tannenbaum Helpern Syracuse & Hirschtritt
LLP as Escrow Agent (18)
- --------------------------------------------------------------------------------


34

- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
10.79 Amendment No. 1 to Indemnification Agreement dated as of May 11,
2001 by and among the Zapco stockholders, Zapco, US Energy, USE
Acquisition Corp. and Cinergy Energy (18)
- --------------------------------------------------------------------------------
10.80 Amendment No. 2 to Indemnification Agreement dated as of November
1, 2002 by and among stockholders, Zapco, US Energy, USE
Acquisition Corp. and Cinergy Energy (18)
- --------------------------------------------------------------------------------
10.81 Amendment No. 2 to Escrow Agreement dated as of November 1, 2002 by
and among the Zapco stockholders, Zapco, US Energy, USE Acquisition
Corp., Cinergy Energy and Tannebaum Helpern Syracuse & Hirschtritt
LLP as Escrow Agent. (18)
- --------------------------------------------------------------------------------
10.80a Agreement by and among AJG Financial, as agent, US Energy, Cinergy
Energy, US Energy Biogas and Tannenbaum, Halpern as agent dated as
of October 16, 2003
- --------------------------------------------------------------------------------
10.81b Amendment No. 15 to indemnification Agreement dated as of October
16, 2003 by an among major stockholders, US Energy Biogas Corp,
US Energy and Cinergy Energy
- --------------------------------------------------------------------------------
10.82 Escrow letter by and among, Tannenbaum, Halpern escrow agent, AJG
Financial, Cinergy Energy, US Energy, US Energy Biogas Corp.
- --------------------------------------------------------------------------------
10.83 Amended and Restated Subordinated Note from US Energy Biogas Corp.
to AJG Financial Services, Inc.
- --------------------------------------------------------------------------------
10.84 Amendment No. 1 to Shareholders Agreement by and among SEEFL,
Endoray, US Energy and EIC dated as of February 2003
- --------------------------------------------------------------------------------
10.85 Amendment No. 2 to Shareholders Agreement by and among SEFL,
Endoray, US Energy, Borg Energy and EIC dated as of October 1, 2003
- --------------------------------------------------------------------------------
10.86 Loan Agreement dated as of August 20, 2003 between SEFL and EIC
- --------------------------------------------------------------------------------
10.87 Loan Agreement dated as of November 3, 2003
- --------------------------------------------------------------------------------
10.88 2003 Finance Incentive Plan
- --------------------------------------------------------------------------------
10.89 2003 Development Incentive Plan
- --------------------------------------------------------------------------------
18.1 Auditor's Letter Regarding Change in Accouning Principles.
- --------------------------------------------------------------------------------
23.1 Independent Auditor's Consent
- --------------------------------------------------------------------------------
31.1 Rule 13a-14(a)/15d-14(a) certifications.
- --------------------------------------------------------------------------------
31.2 Rule 13a-14(a)/15d-14(a) certifications.
- --------------------------------------------------------------------------------
32.1 Section 1350 certification.
- --------------------------------------------------------------------------------
99.2 Second Amended and Restated Operating Agreement dated as of August
23, 2000 by and between USE Sub, KC, GKM and Castlebridge. (12)
- --------------------------------------------------------------------------------
(1) Incorporated by reference to the Company's Registration Statement
on Form SB-2 (File No. 333-94612).
- --------------------------------------------------------------------------------
(2) Incorporated by reference to the Company's Annual Report on Form
10-KSB for the year ended January 31, 1994.
- --------------------------------------------------------------------------------
(3) Incorporated by reference to the Company's Current Report on Form
8-K filed on April 24, 1997.
- --------------------------------------------------------------------------------


35


- --------------------------------------------------------------------------------
Exhibit
Number Description
- --------------------------------------------------------------------------------
(4) Incorporated by reference to the Company's Current Report on Form
8-K dated August 12, 1997.
- --------------------------------------------------------------------------------
(5) Incorporated by reference to the Company's Annual Report on Form
10-KSB for the year ended January 31, 1997.
- --------------------------------------------------------------------------------
(6) Incorporated by reference to the Company's Current Report on Form
8-K dated August 18, 1997.
- --------------------------------------------------------------------------------
(7) Incorporated by reference to the Company's Current Report on Form
8-K filed on March 26, 1998.
- --------------------------------------------------------------------------------
(8) Incorporated by reference to the Company's Annual Report on Form
10-KSB for the year ended January 31, 1998.
- --------------------------------------------------------------------------------
(9) Incorporated by reference to the Company's Current Report on Form
8-K/A filed on September 5, 2000.
- --------------------------------------------------------------------------------
(10) Incorporated by reference to the Company's Quarterly Report on Form
10-QSB for the quarter ended July 31, 2000.
- --------------------------------------------------------------------------------
(11) Incorporated by reference to the Company's Quarterly Report on Form
10-QSB for the quarter ended October 31, 2000.
- --------------------------------------------------------------------------------
(12) Incorporated by reference to the Company's Registration Statement
on Form S-3 filed on February 20, 2001.
- --------------------------------------------------------------------------------
(13) Incorporated by reference to the Company's Current Report on Form
8-K dated May 4, 2000.
- --------------------------------------------------------------------------------
(14) Incorporated by reference to the Company's Annual Report on Form
10-KSB for the year ended January 31, 1999.
- --------------------------------------------------------------------------------
(15) Incorporated by reference to the Company's Report on Form 10-KSB
for the period ended December 31, 2000.
- --------------------------------------------------------------------------------
(16) Incorporated by reference to the Company's Post-Effective Amendment
to Registration Statement on Form Series SB-2 filed on May 14,
2001.
- --------------------------------------------------------------------------------
(17) Incorporated by reference to the Company's Current Report on Form
8-K dated June 11, 2001.
- --------------------------------------------------------------------------------
(18) Incorporated by reference to the Company's Quarterly Report on Form
10-QSB dated August 14, 2002
- --------------------------------------------------------------------------------
(19) Incorporated by reference to the Company's Report on Form 10-KSB
for the period ended December 31, 2002.
- --------------------------------------------------------------------------------

(b) Reports on Form 8-K

None

36


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES

CONTENTS

CONSOLIDATED FINANCIAL STATEMENTS

Independent Auditors' Report............................................... F-2

Consolidated Balance Sheets as of December 31, 2003 and 2002............... F-3

Consolidated Statements of Operations and Other Comprehensive Income
(Loss) for the Years ended December 31, 2003, 2002 and 2001.............. F-5

Consolidated Statements of Changes in Stockholders' Equity for the Years
ended December 31, 2003, 2002............................................ F-6

Consolidated Statements of Cash Flows for the Years ended December 31, 2003,
2002 and 2001.............................................................. F-7

Notes to Consolidated Financial Statements................................. F-11


F-1


U.S. ENERGY SYSTEMS, INC. AND SUBSIDIARIES

Independent Auditors'Report

Board of Directors and Stockholders
U.S. Energy Systems, Inc.
White Plains, New York

We have audited the accompanying consolidated balance sheets of U.S. Energy
Systems, Inc. and subsidiaries as of December 31, 2003 and 2002 and the related
consolidated statements of operations and other comprehensive income (loss),
changes in stockholders' equity and cash flows for each of the years ended
December 31, 2003, 2002 and 2001. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits. We did not examine
the financial statements of USE Canada Energy Corp. for the year ended December
31, 2003, a consolidated subsidiary whose statements reflect total assets and
income constituting 16% and 65%, respectively, of the related consolidated
totals. Those statements were audited by other auditors whose report has been
furnished to us and our opinion insofar as it relates to the amounts included
for USE Canada Energy Corp. as of December 31, 2003 and the related year ended
is based solely on the report of the other auditors.

We conducted our audits in accordance with auditing standards generally accepted
in the United States of America. Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, based on our audit and the report of the other auditors, the
consolidated financial statements referred to above present fairly, in all
material respects, the consolidated financial position of U.S. Energy Systems,
Inc. and subsidiaries as of December 31, 2003 and 2002 and the consolidated
results of their operation and their consolidated cash flows for each of the
years ended December 31, 2003, 2002 and 2001 in conformity with accounting
principles generally accepted in the United States of America.

Kostin, Ruffkess & Company, LLC
Farmington, Connecticut

/s/ Kostin, Ruffkess & Company, LLC

April 8, 2004


F-2


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET
(In thousands)



- ------------------------------------------------------------------------------------------------------
ASSETS DECEMBER 31, DECEMBER 31,
2003 2002
- ------------------------------------------------------------------------------------------------------
Current Assets:
- ------------------------------------------------------------------------------------------------------

Cash .............................................................. $ 3,210 $ 1,856
- ------------------------------------------------------------------------------------------------------
Restricted Cash ................................................... 17,703 13,247
- ------------------------------------------------------------------------------------------------------
Accounts Receivable (less allowance for doubtful accounts $1,200
and $1,313 in 2003 and 2002 respectively) ......................... 9,105 7,992
- ------------------------------------------------------------------------------------------------------
Installments Sale Partnership Interest and Interest Receivable,
Current Portion ................................................... 2,678 4,421
- ------------------------------------------------------------------------------------------------------
Other Current Assets .............................................. 3,664 1,476
- ------------------------------------------------------------------------------------------------------
Total Current Assets, Net ..................................... 36,360 24,736
- ------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------
Property, Plant and Equipment, Net ................................... 43,729 46,335
- ------------------------------------------------------------------------------------------------------
Construction in Progress ............................................. 595 3,076
- ------------------------------------------------------------------------------------------------------
Installment Sale Partnership Interest, less Current Portion .......... 12,987 14,945
- ------------------------------------------------------------------------------------------------------
Notes Receivable ..................................................... 1,247 51,450
- ------------------------------------------------------------------------------------------------------
Investments .......................................................... 8,251 7,613
- ------------------------------------------------------------------------------------------------------
Deferred Costs, including Debt Issuance Costs, Net of Accumulated
Amortization ......................................................... 2,405 2,745
- ------------------------------------------------------------------------------------------------------
Goodwill ............................................................. 26,218 27,718
- ------------------------------------------------------------------------------------------------------
Deferred Tax Asset ................................................... 11,812 11,286
- ------------------------------------------------------------------------------------------------------
Other Assets ......................................................... 257 411
- ------------------------------------------------------------------------------------------------------
Assets to be disposed of ............................................. 28,180 24,637
- ------------------------------------------------------------------------------========================
Total Assets .................................................. $172,041 $219,008
- ------------------------------------------------------------------------------========================

- ------------------------------------------------------------------------------------------------------
LIABILITIES
- ------------------------------------------------------------------------------------------------------
Current Liabilities:
- ------------------------------------------------------------------------------------------------------
Current Portion Long-Term Debt .................................... $ 4,928 $ 5,317
- ------------------------------------------------------------------------------------------------------
Notes Payable - Stockholder ....................................... 688 6,132
- ------------------------------------------------------------------------------------------------------
Accounts Payable and Accrued Expenses ............................. 5,887 9,454
- ------------------------------------------------------------------------------------------------------
Deferred Revenue Installment Sale Partnership Interest, Current
Portion ........................................................... 1,007 1,007
- ------------------------------------------------------------------------------------------------------
Total Current Liabilities ..................................... 12,510 21,910
- ------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------
Long-Term Debt less Current Portion .................................. 53,827 98,030
- ------------------------------------------------------------------------------------------------------
Notes Payable - Stockholder .......................................... 10,641 4,798
- ------------------------------------------------------------------------------------------------------
Deferred Revenue Installment Sale Partnership Interest, less Current
Portion .............................................................. 5,105 6,085
- ------------------------------------------------------------------------------------------------------
Rate Incentive Liability ............................................. 20,652 15,200
- ------------------------------------------------------------------------------------------------------
Advances from Joint Ventures ......................................... 102 102
- ------------------------------------------------------------------------------------------------------
Liabilities to be disposed of ........................................ 21,745 19, 217
- ------------------------------------------------------------------------------------------------------
Total Liabilities ............................................. 124,582 165,342
- ------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------
Minority Interests ................................................... 8,374 14,912
- ------------------------------------------------------------------------------------------------------


See notes to consolidated financial statements
which are an integral part of the financial statements


F-3


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET (Continued)



=================================================================================================================
STOCKHOLDERS' EQUITY DECEMBER 31, DECEMBER 31,
2003 2002
=================================================================================================================

Preferred Stock, $.01 par Value, Authorized 10,000,000 Shares:
- -----------------------------------------------------------------------------------------------------------------
Series B, Cumulative, Convertible, Issued and Outstanding 368 Shares ...... $ -- $ --
- -----------------------------------------------------------------------------------------------------------------
Series C Cumulative, Convertible, Issued and Outstanding 100,000 Shares 1 1
- -----------------------------------------------------------------------------------------------------------------
Series D, Cumulative, Convertible, Issued and Outstanding 1,138,888 Shares 11 11
- -----------------------------------------------------------------------------------------------------------------

Total Preferred Stock, $.01 par Value, Authorized 50,000,000 Shares,
issued 12,333,974 ............................................................ 123 123
- -----------------------------------------------------------------------------------------------------------------
Treasury Stock, 383,450 at Cost .............................................. (2,204) (1,805)
- -----------------------------------------------------------------------------------------------------------------
Additional Paid-in Capital ................................................... 64,891 65,720
- -----------------------------------------------------------------------------------------------------------------
Accumulated Deficit .......................................................... (24,159) (25,997)
- -----------------------------------------------------------------------------------------------------------------
Foreign Currency Translation Adjustment ...................................... 422 701
- -----------------------------------------------------------------------------------------------------------------
Common Stockholders' Equity ......................................... 39,085 38,754
- -----------------------------------------------------------------------------------------------------------------
Total Liabilities and Stockholders' Equity .......................... $ 172,041 $ 219,008
=================================================================================================================


See notes to consolidated financial statements
which are an integral part of the financial statements


F-4


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF OPERATIONS AND OTHER
COMPREHENSIVE INCOME (LOSS)



=========================================================================================================================
Year Ended Year Ended Year Ended
December 31, 2003 December 31, 2002 December 31, 2001
=========================================================================================================================

Revenues $ 24,999 $ 28,620 $ 22,760

- -------------------------------------------------------------------------------------------------------------------------
Costs and Expenses:
- -------------------------------------------------------------------------------------------------------------------------
Operating Expenses 10,964 14,842 9,895
- -------------------------------------------------------------------------------------------------------------------------
Special Write-Offs in 2002 -- 3,684
- -------------------------------------------------------------------------------------------------------------------------
General and Administrative Expenses 5,918 9,958 3,968
- -------------------------------------------------------------------------------------------------------------------------
Depreciation and Amortization 3,874 5,906 4,208
- -------------------------------------------------------------------------------------------------------------------------
(Gain) from Joint Ventures (792) (60) (83)
- -------------------------------------------------------------------------------------------------------------------------
Total Costs and Expenses 19,964 34,330 17,988
- -------------------------------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------------------------
Income (Loss) from Operations 5,035 (5,710) 4,772
- -------------------------------------------------------------------------------------------------------------------------
Interest Income 1,175 1,648 909
- -------------------------------------------------------------------------------------------------------------------------
Dividend Income (40) 81 0
- -------------------------------------------------------------------------------------------------------------------------
Interest Expense (6,779) (7,766) (4,830)
- -------------------------------------------------------------------------------------------------------------------------
Asset Sales (1,944) --
- -------------------------------------------------------------------------------------------------------------------------
(Loss) on Investments (5,120) --
- -------------------------------------------------------------------------------------------------------------------------
Minority Interest 296 1,613 (961)
- -------------------------------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------------------------
(Loss) Income before Taxes and Cumulative effect of
Accounting Change and Disposal of a Segment (2,257) (15,254) (110)
- -------------------------------------------------------------------------------------------------------------------------
Income Tax Benefit (Expense) 1,227 5,671 (295)
- -------------------------------------------------------------------------------------------------------------------------
(Loss) Income before Cumulative effect of Accounting Change
and Disposal of a Segment (1,030) (9,583) (405)
- -------------------------------------------------------------------------------------------------------------------------
Income from discontinued operations 1,188 (4,192) 4,894
- -------------------------------------------------------------------------------------------------------------------------
Gain/(Loss) on Disposal of a Segment (net of Income Tax 1,680 (1,619) --
benefit of $887,000 and $1,080,000 respectfully)
- -------------------------------------------------------------------------------------------------------------------------
Cumulative effect of Accounting Change in Years Prior to 2002 -- (754) --
(net of Income Tax benefit of $546,000)
- -------------------------------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------------------------
NET (LOSS) INCOME $ 1,838 $(16,148) $ 4,489
- -----------------------------------------------------------------------==================================================
Dividends on Preferred Stock (829) (831) (1,111)
- -------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) APPLICABLE TO COMMON STOCK $ 1,009 $(16,979) $ 3,378
- -----------------------------------------------------------------------==================================================
INCOME (LOSS) PER SHARE OF COMMON STOCK:
- -------------------------------------------------------------------------------------------------------------------------
(Loss)Income per Share of Common Stock - Basic $ 0.08 $ (1.39) $ 0.35
- -------------------------------------------------------------------------------------------------------------------------
(Loss)Income per Share of Common Stock - Diluted $ 0.06 $ (1.39) $ 0.20
- -------------------------------------------------------------------------------------------------------------------------
Weighted Average Number of Common Stock Outstanding - Basic 11,950 12,186 9,656

- -------------------------------------------------------------------------------------------------------------------------
Weighted Average Number of Common Stock Outstanding - Diluted 17,115 17,351 16,818
- -------------------------------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------------------------
Other Comprehensive Income (LOSS), Net of Tax
- -------------------------------------------------------------------------------------------------------------------------
Net (Loss)Income $ 1,838 $(16,148) $ 4,489
- -------------------------------------------------------------------------------------------------------------------------
Foreign Currency Translation Adjustment 279 295 406
- -------------------------------------------------------------------------------------------------------------------------
Total Comprehensive (Loss) Income $ 2,117 $(15,853) $ 4,895
- -------------------------------------------------------------------------------------------------------------------------


See notes to consolidated financial statements
which are an integral part of the financial statements


F-5


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
FOR THE YEAR ENDED DECEMBER 31, 2002
(In Thousands, except Share Data)



- ---------------------------------------------------------------------------------------------------------------------
Preferred Stock Preferred Stock Preferred Stock
Series B Series C Series D Treasury Stock
- ---------------------------------------------------------------------------------------------------------------------

No. of No. of No. of No. of
Shares Amount Shares Amount Shares Amount Shares Amount
- ----------------------------------------------------------------------------------------------------------------------

Balance- Dec.31,
2001 as previously
reported 368 -- 100,000 $ 1 1,138,888 $ 11 (114,700) $ (495)
- ----------------------------------------------------------------------------------------------------------------------
Adjustments -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Balance- Dec.31,
2001 as adjusted 368 -- 100,000 $ 1 1,138,888 $ 11 (114,700) $ (495)
- ----------------------------------------------------------------------------------------------------------------------
Shares Issued for
Exercised Options
and Warrants -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Issuance of Common
Stock -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Treasury Stock -- -- -- -- -- -- (268,750) (1,310)
- ----------------------------------------------------------------------------------------------------------------------
Foreign Currency
Translation -- -- -- -- -- -- -- --
Adjustment
- ----------------------------------------------------------------------------------------------------------------------
Net Loss for the
year ended -- -- -- -- -- -- -- --
December 31, 2002
- ----------------------------------------------------------------------------------------------------------------------
Dividends on
Preferred Stock:
- ----------------------------------------------------------------------------------------------------------------------
Series B -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Series C -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Series D -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Balance -
December 31, 2002 368 -- 100,000 $ 1 1,138,888 $ 11 (383,450) $ (1,805)
======================================================================================================================


- ------------------------------------------------------------------------------------------------
Common Stock
- ------------------------------------------------------------------------------------------------
Foreign
Additional Currency
No. of Paid in Translation Accumulated
Shares Amount Capital Adjustment Deficit Total
- ------------------------------------------------------------------------------------------------

Balance- Dec.31,
2001 as previously
reported 12,065,000 $ 121 $ 65,647 $ 406 $ (7,733) $ 57,958
- ------------------------------------------------------------------------------------------------
Adjustments -- -- -- -- $ (2,116) $ (2,116)
- ------------------------------------------------------------------------------------------------
Balance- Dec.31,
2001 as adjusted 12,065,000 $ 121 $ 65,647 $ 406 $ (9,849) $ 55,842
- ------------------------------------------------------------------------------------------------
Shares Issued for 120,637 1 230 -- -- 231
Exercised Options
and Warrants
- ------------------------------------------------------------------------------------------------
Issuance of Common
Stock 147,976 1 674 -- -- 675
- ------------------------------------------------------------------------------------------------
Treasury Stock -- -- -- -- -- (1,310)
- ------------------------------------------------------------------------------------------------
Foreign Currency
Translation -- -- -- 295 -- 295
Adjustment
- ------------------------------------------------------------------------------------------------
Net Loss for the
year ended -- -- -- -- (16,148) (16,148)
December 31, 2002
- ------------------------------------------------------------------------------------------------
Dividends on
Preferred Stock:
- ------------------------------------------------------------------------------------------------
Series B -- -- (36) -- -- (36)
- ------------------------------------------------------------------------------------------------
Series C -- -- (180) -- -- (180)
- ------------------------------------------------------------------------------------------------
Series D -- -- (615) -- -- (615)
- ------------------------------------------------------------------------------------------------
Balance -
December 31, 2002 12,333,613 $ 123 $ 65,720 $ 701 $(25,997) $ 38,754
================================================================================================


See notes to consolidated financial statements
which are an integral part of the financial statements


F-6


U.S. ENERGY SYSTEMS, INC AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
FOR THE YEAR ENDED DECEMBER 31, 2003
(in Thousands, except Share Data)



- ---------------------------------------------------------------------------------------------------------------------
Preferred Stock Preferred Stock Preferred Stock
Series B Series C Series D Treasury Stock
- ---------------------------------------------------------------------------------------------------------------------

No. of No. of No. of No. of
Shares Amount Shares Amount Shares Amount Shares Amount
- ----------------------------------------------------------------------------------------------------------------------

Balance- Dec. 31, 2002 as 368 -- 100,000 $ 1 1,138,88 $ 11 (383,450) $ (1,805)
previously reported
- ----------------------------------------------------------------------------------------------------------------------
Adjustments -- -- -- -- -- -- -- --
- ----------------------------------------------------------------------------------------------------------------------
Balance- Dec. 31, 2002 as
adjusted 368 100,000 $ 1 1,138,88 $ 11 (383,450) $ (1,805)
- ----------------------------------------------------------------------------------------------------------------------
Issuance of Common Stock
- ----------------------------------------------------------------------------------------------------------------------
Foreign Currency Translation
Adjustment
- ----------------------------------------------------------------------------------------------------------------------
Treasury Stock 62,480 $ (399)
- ----------------------------------------------------------------------------------------------------------------------
Net Income for the year
ended December 31, 2003
- ----------------------------------------------------------------------------------------------------------------------
Dividends on Preferred Stock:
- ----------------------------------------------------------------------------------------------------------------------
Series B
- ----------------------------------------------------------------------------------------------------------------------
Series C
- ----------------------------------------------------------------------------------------------------------------------
Series D
- ----------------------------------------------------------------------------------------------------------------------
Balance-December 31, 2003 368 100,000 $ 1 1,138,88 $ 11 (445,930) $ (2,204)
======================================================================================================================


- --------------------------------------------------------------------------------------------------------------
Common Stock
- --------------------------------------------------------------------------------------------------------------
Foreign
Additional Currency
No. of Paid in Translation Accumulated
Shares Amount Capital Adjustment Deficit Total
- --------------------------------------------------------------------------------------------------------------

Balance- Dec. 31, 2002 as 12,333,613 $ 123 $ 65,720 $ 701 $(23,154) $ 41,597
previously reported
- --------------------------------------------------------------------------------------------------------------
Adjustments -- -- -- -- $ (2,843) $ (2,843)
- --------------------------------------------------------------------------------------------------------------
Balance- Dec. 31, 2002 as
adjusted 12,333,613 $ 123 $ 65,720 $ 701 $(25,997) $ 38,754
- --------------------------------------------------------------------------------------------------------------
Issuance of Common Stock 361
- --------------------------------------------------------------------------------------------------------------
Foreign Currency Translation $ (279) $ (279)
Adjustment
- --------------------------------------------------------------------------------------------------------------
Treasury Stock $ (399)
- --------------------------------------------------------------------------------------------------------------
Net Income for the year
ended December 31, 2003 $ 1,838 $ 1,838
- --------------------------------------------------------------------------------------------------------------
Dividends on Preferred Stock:
- --------------------------------------------------------------------------------------------------------------
Series B (34) $ (34)
- --------------------------------------------------------------------------------------------------------------
Series C (180) $ (180)
- --------------------------------------------------------------------------------------------------------------
Series D (615) $ (615)
- --------------------------------------------------------------------------------------------------------------
Balance- December 31, 2003 12,333,974 $ 123 $ 64,891 $ 422 $(24,159) $ 39,085
==============================================================================================================


See notes to consolidated financial statements
which are an integral part of the financial statements


F-7


U.S. ENERGY SYSTEMS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS



DEC. 31, 2003 DEC. 31, 2002 DEC. 31, 2001

CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss) ................................................... $ 1,838 $(16,148) $ 4,489
Adjustments to Reconcile Net Income (loss) to net cash provided by
(used in) operating activities:
Depreciation and Amortization .................................... 3,874 6,123 4,424
Purchase Price Adjustment ........................................ 1,100
Loss on Sale of Segment .......................................... -- 1,619 --
Gain on sale of subsidiary ....................................... (1,680)
Minority Interest Income ......................................... (296) 1,000 --
Impairments and Write-offs ....................................... 1,944 11,889 --
Realized Gain on Sales ........................................... -- -- (2,946)
Deferred Taxes ................................................... (526) (8,225) 8,991
Equity in (gain) Loss of Joint Ventures .......................... -- (60) (83)
Cumulative effects of Accounting Change on years prior to 2002
(net of income tax of $546,000) .................................. 754 --
Income from Discontinued Operations ..............................
Changes in:
Accounts Receivable, Trade ....................................... (1,313) 746 (1,080)
Spare parts in Inventory ......................................... -- -- (1,571)
Project Development Costs ........................................ -- (1,368)
Other Current Assets ............................................. (2,188) 468 645
Other Assets ..................................................... 154 1,357 --
Accounts Payable and Accrued Expenses ............................ 1,809 1,141 (5,948)

Net effect of discontinued operation ............................. 253 (1,465) (2,343)
Net effect of change of reporting entity ......................... -- --
Minority Interest Liability ...................................... -- 1,218 2,744
Deferred Revenue ................................................. (980) (1,185) (130)
Rate Incentive Liability ......................................... 5,452 5,619 3,933
-------- -------- --------
Net cash provided by Operating Activities .............................. 9,941 5,262 8,728
-------- -------- --------
CASH FLOWS FROM INVESTING ACTIVITIES:
Investments ...................................................... (638) (3,099) (8,403)
Net Acquisition of Equipment and Leasehold Improvements .......... (512) (2,310) (11,166)
Construction in Progress ......................................... (737) (1,108)
Increase in Notes Receivable ..................................... (1,247) (51,450) --
Deferred Financing Costs ......................................... -- 2,492 356
Goodwill ......................................................... -- -- 430
-------- -------- --------
Net cash provided by Investing Activities ............................. (2,397) (55,104) (2,441)
-------- -------- --------
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Notes Receivable ................................... 2,425 866 1,279
Payments of Convertible Subordinated Secured Debentures .......... -- -- (16)
Payments of Long-term Debt ....................................... (3,930) (4,522) (31,428)
Proceeds from Long-term Debt ..................................... 1,100 44,856 17,312
Redemption of Subscription Receivable ............................ -- -- 7,741
Debt Issuance Costs .............................................. -- -- (567)
Proceeds from Sale of Common Stock ............................... -- -- --
Proceeds from Exercise of Options and Warrants ................... -- 231 8,249
Treasury Stock ................................................... -- -- (480)
Dividends on Preferred Stock ..................................... (829) (831) (1,111)
Minority Interests ............................................... -- (613) 9,716
Payment for former Stockholders .................................. -- -- (12,000)
-------- -------- --------
Net cash used in Financing Activities .................................. (1,234) 39,987 1,404
-------- -------- --------
NET INCREASE (DECREASE) IN CASH ........................................ 5,810 (9,855) 9,765
Cash, Restricted Cash and Equivalents - beginning of period ............ 15,103 24,958 15,193
-------- -------- --------
CASH, RESTRICTED CASH AND EQUIVALENTS - END OF PERIOD .................. 20,913 $ 15,103 $ 24,958
======== ======== ========

Supplemental Disclosure of Cash Flow Information:
Cash paid for Interest ........................................... $ (4,685) $ 5,350 $ 2,426
======== ======== ========
Supplemental Schedule of Non-cash Financing Activities:
Issuance of Common Stock ......................................... -- -- 10,550
======== ======== ========
Issuance of Series C Preferred Stock ............................. -- -- 3,000
======== ======== ========
Deferred Offering Costs .......................................... -- -- (480)
======== ======== ========
Liabilities assumed in Acquisition of Zapco and Trigen Canada .... -- -- 73,000
======== ======== ========
Conversion of Receivable to Investment by SEFL ................... -- 5,085 --
======== ======== ========
Return of Treasury Stock ......................................... 399 1,310 --
======== ======== ========
Issuance of Common Stock for investment interest in SEFL ......... -- 675 --
======== ======== ========
Notes Receivable - SEFL .......................................... 52,726 -- --
======== ======== ========
Long-Term Debt - SEFL ............................................ 45,398 -- --
======== ======== ========


See notes to consolidated financial statements which are an integral part of the
financial statements


F-8


U.S. ENERGY SYSTEMS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
FOR THE YEARS ENDED DECEMBER 31, 2003, 2002 AND 2001

U.S. Energy Systems, Inc. and subsidiaries (collectively the "Company")
provides customer-focused energy outsourcing services, including the management,
development, operation, and ownership of small-to-medium-sized energy facilities
typically located in close proximity to our customers. Our customers include
large retail energy consumers, such as industrial and commercial concerns, as
well as local wholesale energy suppliers, such as utilities and marketers. The
energy generation facilities in our portfolio utilize high efficiency combined
heat and power ("CHP") technology and/or clean renewable fuels, such as biogas,
biomass fuel and geothermal energy. We strive to integrate combined heat and
power technology with renewable energy at an individual plant, when possible, to
maximize efficiency and environmental benefits.

NOTE A -- SIGNIFICANT ACCOUNTING POLICIES

Significant accounting policies followed in the preparation of the financial
statements are as follows:

(1) Consolidation. The consolidated financial statements of the Company
include the accounts of the Company and its wholly owned and majority-owned
subsidiaries. All significant inter-company accounts and transactions have been
eliminated in the consolidation.

(2) Statement of Cash Flows and Equivalents. For purposes of reporting
cash flows, cash and cash equivalents include cash on hand and short-term
investments maturing within ninety days, and the carrying amounts approximate
fair value.

(3) Property, Plant and Equipment. Property, plant and equipment are
stated at cost and is depreciated using the straight-line method over their
estimated useful lives ranging from 3 to 40 years with the power generation
plants between 15 to 25 years.

(4) Investments in Joint Ventures. Investments in joint ventures are
accounted for under the equity method.

(5) Goodwill and Other Long-Lived Assets. Goodwill represents the excess
of the cost of acquired companies over the fair value of their tangible net
assets acquired. The periods of amortization of goodwill and other long-lived
assets are evaluated at least annually to determine whether events and
circumstances warrant revised estimates of useful lives. This evaluation
considered, among other factors, expected cash flows and profits of the business
to which the goodwill and other long-lived assets relate. More specifically, the
Company performed a discounted cash flow analysis using a risk adjusted rate of
return, commensurate with specific business or asset characteristics and
potential business opportunities for the investment.

In June 2001, the FASB issued Statement of Financial Accounting Standards No.
141, Business Combinations (SFAS 141), and No. 142, Goodwill and Other
Intangible Assets (SFAS 142). SFAS 141 requires all business combinations
initiated after June 30, 2001, to be accounted for using the purchase method.
With the adoption of SFAS 142, goodwill and other intangibles with indefinite
lives will no longer be subject to amortization. SFAS 142 requires that goodwill
be assessed for impairment upon adoption and at least annually thereafter by
applying a fair-value-based test, as opposed to the undiscounted cash flow test
applied under prior accounting standards. This test must be applied at the
"reporting unit" level, which is not permitted to be broader than the current
business segments. Under SFAS 142, an acquired intangible asset should be
separately recognized if the benefit of the intangible asset is obtained through
contractual or other legal rights, or if the intangible asset can be sold,
transferred, licensed, rented, or exchanged, regardless of the acquirer's intent
to do so.


F-9


We began applying SFAS 141 in the third quarter of 2001 and SFAS 142 in the
first quarter of 2002. The discontinuance of amortization of goodwill, which
began in the first quarter of 2002, was not material to our financial position
or results of operations. In 2002 and 2003, an impairment test of the goodwill
resulting from the acquisition of USEB was performed with no change in the
valuation. The goodwill from the acquisition of US Enviro of $1.3 million was
written off in the first quarter of 2002 in accordance with SFAS No. 142 and has
been treated as a cumulative effect for accounting change in years prior to
2002. Additionally, $830,000 of goodwill in Lehi Independent Power Associates on
the books of LEHI Envirosystems, Inc. was written off in 2002 in accordance with
SFAS 142. We will continue to perform goodwill impairment tests annually, as
required by SFAS 142, or when circumstances indicate that the fair value of a
reporting unit has declined significantly.

Goodwill at December 31, 2003 and 2002 is presented net of amortization of
$955,000. Amortization has ceased with the adoption of SFAS No. 142. Adjustments
were made to goodwill due to accounting changes in the years 2001 and 2003. See
Notes K and S.

(6) Per Share Data. Income (Loss) per share is computed by dividing income
available to common stockholders by the weighted average number of common shares
outstanding during the periods. In arriving at income available to common
stockholders, preferred stock dividends have been deducted. Potential common
shares have not been included due to their anti-dilutive effect in the period
ended December 31, 2002.

(7) Use of Estimates. The preparation of financial statements in conformity with
accounting principles generally accepted in the United States of America
requires management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and
liabilities at the date of the financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual results may differ
from estimates.

(8) Fair Values of Financial Instruments. The estimated fair value of financial
instruments has been determined based on available market information and
appropriate valuation methodologies. The carrying amounts of cash, accounts
receivable, other current assets, accounts payable and royalties payable
approximate fair value at December 31, 2003 and 2002 because of the short
maturity of these financial instruments. The estimated carrying value of the
notes receivable, notes payable -- bank, long-term debt (mortgage and equipment
notes payable) and the convertible subordinated debentures are either
contractual or approximate fair value. The fair value estimates were based on
information available to management as of December 31, 2003 and 2002. If
subsequent circumstances indicate that a decline in the fair market value of a
financial asset is other than temporary, the financial instrument is written
down to its fair market value. Unless otherwise indicated, it is management's
opinion that the Company is not exposed to significant interest, currency or
credit risks arising from these financial instruments.

(9) Impairment of Long-Lived Assets. We evaluate long-lived assets for
impairment when events or changes in circumstances indicate that the carrying
value of such assets may not be recoverable. The determination of whether an
impairment has occurred is based on an estimate of the net present value of the
future cash flows attributable to the assets, compared with the carrying value
of the assets. If an impairment has occurred, the amount of the impairment
recognized is determined by estimating the fair value of the assets and
recording a provision for an impairment loss if the carrying value is greater
than the fair value. Until the assets are disposed of, their estimated fair
value is reevaluated when circumstances or events change. In 2002, the Company
recognized impairments of certain investments of approximately $5 million and
property, plant and equipment of approximately $3.8 million. These are reflected
in Operations, General and Administrative non-recurring and Operations Expense,
respectively. There were no impairment of assets in the year 2003.

(10) Stock-Based Compensation The Company accounts for its stock-based
compensation plans using the intrinsic value method prescribed by Accounting
Principles Board Opinion No. 25 (APB No. 25), Accounting for Stock Issued to
Employee's and discloses the pro forma effects on net loss and loss per share
had the fair value of options been expensed. Under the provisions of APB No. 25,
compensation arising from the grant of stock options is measured as the excess,
if any, of the quoted market price of the Company's common stock at the date of
grant over the amount an employee must pay to acquire the stock.


F-10


(11) Concentration of credit risk. A significant portion of the Company's
revenues are derived from investment grade utilities, and government and
industrial customers. They have contracted with the Company to purchase energy
over various terms. The concentration of credit in this business segment reduces
the Company's overall credit exposure because these customers are investment
grade, diversified and under contract.

The Company maintains demand deposits in excess of $100,000 with individual
banks. The Federal Deposit Insurance Corporation does not insure amounts in
excess of $100,000.

(12) Debt Issuance Costs. Debt issuance costs are amortized on a straight-line
basis over the terms of the related financing. For 2003, 2002 and 2001,
amortization expense was approximately $200,000 per annum and the unamortized
balance on December 31, 2003 is $2.4million. This will be amortized over the
remaining term of the respective debt. The amortization expense will approximate
$200,000 per annum.

(13) Deferred Revenues. Deferred revenues primarily represent gains to be
recognized from the sale of the Company's limited partnership interests in
certain partnerships, further described. The majority of the proceeds from the
sale are to be paid in installments, the amount of which will be determined by
production and other considerations; therefore, the gain will be recognized as
payments are received.

(14) Income Taxes. The Company uses the liability method of accounting for
income taxes. Deferred income taxes result from temporary differences between
the tax basis of assets and liabilities and the basis as reported in the
consolidated financial statements. Differences in the timing of gain recognition
and the utilization of tax net operating losses constitute the majority of the
deferred tax asset. Income taxes have been accrued on the undistributed earnings
of all subsidiaries.

(15) Foreign Currency. The functional currency for all of our foreign operations
is the local currency. For these foreign entities, we translate income statement
amounts at average exchange rates for the period, and we translate assets and
liabilities at the end-of-period exchange rates. We report exchange gains and
losses on inter-company foreign currency transactions of a long-term nature in
Accumulated Other Comprehensive Income.

(16) Revenue Recognition. Revenues are recognized upon delivery of energy or
service.

(17) Capitalization Policy. The Company has major holdings in revenue producing
property, plant and equipment, it is critical to adhere to maintenance and
overhaul schedules to keep the equipment in good condition. For accounting
purposes it is equally important to discern and account for these two activities
properly. Unscheduled maintenance that does not extend the useful life of the
asset or enhance production is recognized as operations and maintenance expense
in the period incurred. Scheduled overhauls and major repairs that either extend
the useful life or enhance production are normally capitalized and depreciated
over the time until the next scheduled overhaul.

NOTE B -- SUBSIDIARIES AND AFFILIATES

(1) U.S. Energy Biogas Corporation. On May 11, 2001 we, together with Cinergy
Energy Solutions, Inc. ("Cinergy Energy") acquired through a merger Zahren
Alternative Power Corporation ("Zapco"), renamed U.S. Energy Biogas Corporation
("Biogas"). We own 54.26% and Cinergy Energy, a wholly owned subsidiary of
Cinergy Corp. ("Cinergy") owns 45.74% of Biogas.

(2) USE Canada Energy Corp. ("USE Canada") On June 11, 2001 USE Canada
Acquisition Corp., a wholly-owned Canadian subsidiary of the Company, purchased
100% of the issued and outstanding stock of Trigen Energy Canada Company, and
through a series of subsequent steps renamed USE Canada Energy Corp. USE Canada
owns and operates two-district energy systems located in Charlottetown, Prince
Edward Island and in London, Ontario. USE Canada has project financing from
Toronto Dominion Bank totaling $17,266,000 and it is secured by all of the
assets of USE Canada and it is non recourse to the Company.


F-11


Effective December 31, 2003 USE Canada became a discontinued operation, because
it was sold to the Countryside Fund on April 8, 2004. See Note R.

(3) U.S. Energy Geothermal, LLC. Our former 95%-owned subsidiary, U.S. Energy
Geothermal, LLC ("Geothermal, LLC"), owns two geothermal power plants in
Steamboat Hills, Nevada: Steamboat 1 and 1A. The facilities were built in 1986
and 1988 respectively. These plants produce electricity through a system in
which hot water from the earth's sub-strata is used to generate electricity. The
plants produce a combined seven megawatts of electric power, which is sold under
long-term power purchase agreements with Sierra Pacific Power Company
("Sierra"). Sierra is obligated to pay rates for the electric power generated by
Geothermal, LLC that are based on the wholesale electricity prices at the
California-Oregon Border exchange, See Note L. The Company sold its 95% interest
in Geothermal LLC in June 2003 for approximately $1 million cash.

(4) Scandinavian Energy Finance, Limited / EnergiSystem i Sverige AB. In March
2002, together with EIC Electricity SA ("EIC"), a Swiss investment company
specializing in energy investments, we formed a joint venture, Scandinavian
Energy Finance, Limited ("SEFL") and financed a new Swedish energy group,
EnergiSystem i Sverige AB ("EnergiSystem"). SEFL had a 25 year option to acquire
90% of the fully diluted equity of EnergiSystem for a nominal sum which it
exercised in December 2003. As part of the transaction, EnergiSystem acquired
seven operating district energy systems and several late-stage development
projects. Currently, the operations provide biomass-fueled energy to 800
customers serving the equivalent of approximately 30,000 households in ten
communities in the vicinity of Stockholm, Sweden. A significant portion of the
energy is provided under long-term contracts. The energy market in Sweden is
deregulated, and district energy markets are not subject to government rate
regulation.

SEFL provided approximately $56 million to EnergiSystem in the form of
financing. Approximately $45 million of this amount was made in the form of a
senior secured convertible debenture to EnergiSystem and approximately $11
million was in the form of a subordinated loan to EnergiSystem. The senior
secured convertible debenture carries an interest rate of approximately 6% per
annum during the first 2 years and 9% thereafter. The subordinated loan carries
an interest rate of approximately 13%. A Swedish bank provided SEFL with
approximately $45 million of long term financing on a non-recourse basis to
SEFL's stockholders. The financing carries a variable interest rate of the
Stockholm Inter-Bank Offered Rate ("STIBOR") plus 30 basis points per annum,
capped at 4.7% for the first 5 years and a rate of STIBOR plus 110 basis points
per annum thereafter. The loan has a 25 year term with no amortization during
the first ten years.

We initially invested approximately $5 million in cash and 167,976 of our common
shares, valued at approximately $769,000 in SEFL, and EIC invested its
proportionate share in cash.

On September 30, 2003 U.S. Energy Systems sold a 2% interest in SEFL (See Note
H) to Borg Energi AB for $223,000. Due to the issuance of additional common
stock to EIC for additional investments in the fourth quarter of 2003, the
Company's ownership interest in SEFL was reduced to 32% and is subsequently
accounted for using the equity method. The current investment in SEFL including
equity investments, inter-company loans and unrepatriated retained earnings
amounts to approximately $7.5 million.

EnergiSystem is currently involved in litigation with Navarme Sverige AB in
Sweden. If Navarme Sverige AB prevails in such litigation, SEFL's investment in
EnergiSystem and the Company's investment in SEFL could be affected in a
material adverse manner. From time to time, Lantbrukskredit ("LBK"), the lender
to SEFL and EnergiSystem has alleged defaults under its loan to such entities.
SEFL and EnergiSystem have both disputed LBK's assertions. If defaults occur and
LBK accelerates its loans to SEFL and/or EnergiSystem, LBK's loans to SEFL
and/or EnergiSystem were in default SEFL's investment in EnergiSystem AB and the
Company's investment in SEFL may be adversely affected in a materially adverse
manner.

NOTE C -- RECENT ACCOUNTING PRONOUNCEMENTS


F-12


The FASB issued Interpretation No. 46, Consolidation of Variable Interest
Entities in January 2003. This interpretation will significantly change the
consolidation requirements for special purpose entities (SPE). The Company
currently does not have any SPE's that it does not consolidate on its financial
statements.

NOTE D -- RESTRICTED CASH AND RATE INCENTIVE LIABILITY

USEB has ten operating projects in Illinois, which are receiving an incentive
for each kilowatt-hour of electricity sold to the local utility. In accordance
with the incentive program, the utility has contracted with each project to
purchase electricity for an amount in excess of the utilities' avoided cost
(what it would otherwise pay for the generation of electricity) for a period of
ten years. In turn, the utility receives a tax credit from the State of Illinois
("the State") equaling the amount of that excess. USEB is obligated to repay the
incentive to the State beginning ten years from the date the incentive is first
received, over the following ten-year period, without interest.

USEB is accounting for this incentive in a manner similar to an original issue
discount whereby the amount to be repaid in the future is discounted to its net
present value and the discount is amortized (as interest expense) over the
ten-year period until repayment begins. The amount of power generation income
recognized each period is equal to the avoided cost rate plus the difference
between the gross incentive and the net present value of the gross incentive.

USEB is required by certain lenders to escrow funds monthly for repayment of the
incentive with respect to eight of the ten facilities. The escrow account is
classified as restricted cash. The amount deposited into escrow monthly
contemplates an annual return sufficient to fund the full incentive as it
becomes due. One lender requires a quarterly adjustment for actual returns.

This unamortized discount and the liability are shown net on the consolidated
balance sheet as Rate incentive liability.

Additionally, USEB is required to hold restricted cash in connection with its
long-term debt facilities.

The Company also has Restricted Cash of $947,000 related to its obligations for
Series C and Series D Preferred Stock dividends.

NOTE E -- TRANSACTIONS WITH AFFILIATES:

USEB is a general partner in alternative energy and equipment finance
transactions with related limited partnerships and collects management fees from
the partnerships. Fees earned from such general partner undertakings amount to
$401,580 for the year ended December 31, 2003 and to $140,000 for the year ended
December 31, 2002. The amounts due from these affiliates included in Accounts
receivable at December 31, 2003 and 2002 total $311,000 and $90,000.

Prior to 2001, Zapco sold 12% of its rights to cash flows from six power
generation projects and 9.6% of its rights to cash flows from two additional
projects to ZFC Royalty Partners ("ZRP"). These sales of rights are an
obligation payable out of cash flows achieved by the projects. The cash flow
payments are subordinate to the required debt service for the projects, even
though the cash flows are calculated without regard to debt payments. For the
year ended December 31, 2003 and 2002 royalty expense was $136,000 and the full
amount remained payable at December 31, 2003. Approximately 31% of the amounts
payable to ZRP revert back to Biogas and decrease its equity investment in ZRP.
The balance of the ZRP ownership interest was purchased by U.S. Energy Systems,
Inc. effective as of the date of the Zapco merger May 11, 2001.

SEFL loaned $40,313,000 (417,360,000 SEK) convertible debentures to EnergiSystem
as of December 31, 2002 through a subscription to convertible debentures. The
convertible debentures accrue interest at an interest rate of 2.98% plus an
inflationary premium adjusted from 2002 to 2003, thereafter the


F-13


interest rate shall increase to 5.98% plus an inflationary premium. Principal
repayments shall commence on February 20, 2012. The convertible debentures can
be converted to EnergiSystem i Sverige AB equity at the discretion of the SEFL
(10% holding on full conversion).

SEFL loaned to EnergiSystem $11,137,000 (115,300,000 SEK) in March 2002. The
loan bears interest at a fixed rate of interest of 10% plus an inflationary
premium. EnergiSystem shall be entitled to postpone the payment of interest or
principal if on the interest payment date or repayment date EnergiSystem does
not have sufficient funds until the next payment date or as soon as it is able
to pay. Interest shall accrue at the above mentioned rate in the event of a
postponement. Refer to Note T.

SEFL held a call option to acquire 90% of the outstanding shares of EnergiSystem
which it exercised in December 2003.


F-14


NOTE F -- INSTALLMENT SALE PARTNERSHIP AND INTEREST RECEIVABLE

Installment sale partnership and interest receivable at December 31, 2003
consisted of the following:



IN THOUSANDS
Interest Current Long-Term
Rate Portion Portion

Installment Note Receivable for 1999 Sale of 9.47% $ 1,091 $ 6,221
Gasco Interests Secured by the Interests

Fixed Installment Note Receivable for 2001 Sale 6.00% 481 1,335
of Gasco Interests Secured by the Interests

Contingent Installment Note Receivable for 2001 6.00% 719 4,898
Sale of Gasco Interests Secured by the
Interests

Notes Receivable for Sale of Barre, MA 10.00% 10 535
Project's Gas Collection System and Related
Assets, Secured by Assets
Loan to SEFL 4.92% -- 1,247
-------- --------
$ 2,300 $ 14,234
Interest Receivable 378 --
-------- --------
$ 2,678 $ 14,234
======== ========


A comparable breakdown as at December 31, 2002 is as follows:

Installment sale partnership and interest receivable at December 31, 2002
consisted of the following:



IN THOUSANDS
-------------------------------------
Interest Current Long-Term
Rate Portion Portion
-------- -------- --------

Installment Note Receivable for 1999 Sale of 9.47% $ 1,630 $ 7,115
Gasco Interests Secured by the Interests

Fixed Installment Note Receivable for 2001 Sale 6.00% 427 1,842
of Gasco Interests Secured by the Interests

Contingent Installment Note Receivable for 2001 6.00% 613 5,453
Sale of Gasco Interests Secured by the
Interests

Notes Receivable for Sale of Barre, MA 10.00% 10 535
Project's Gas Collection System and Related
Assets, Secured by Assets

Convertible Debentures to EnergiSystem 5.65% -- 40,313

Subordinated Loan to EnergiSystem 12.67% -- 11,137
-------- --------
$ 2,680 $ 66,395
Interest Receivable 1,741 --
-------- --------
$ 4,421 $ 66,395
======== ========


A Gasco project is a project level entity (normally a limited partnership for
which Biogas or a Biogas subsidiary normally serves as general partner), which
collects and sells biogas to an affiliated project level entity (a "Genco"),
which uses the biogas to generate electricity.

Zapco sold its limited partnership interests in several Gasco's during December
1999 to a current stockholder of the Company. The total sales price was
approximately $22,000,000 including interest imputed at 9.47%. A down payment of
approximately $4,285,000 was received in 1999. The balance of the sales proceeds
will be received based on the actual gas production of the projects over six
years. A gain on this sale of $49,000, $182,000 and $201,000 was recognized in
2003, 2002 and 2001, respectively. The balance of deferred revenue of $2,585,000
on December 31, 2003 remains to be recognized over the remaining five years.
Zapco recognized the full amount of the gain on this transaction on its 1999 tax
return. However, for financial statement purposes, and in accordance with
accounting principles generally accepted in the United States of America, the
sale is being treated as an installment sale with the gain being recognized over
the term of the note receivable as payments are received.


F-15


In 2001, Zapco sold limited partnership interests in three other Gasco entities.
The purchaser was AJG Financial Services. The total purchase price was
approximately $12,300,000 including interest and consisted of a down payment of
$1,000,000 and two long-term notes receivable; one calling for fixed quarterly
payments of $145,000 and the other calling for contingent quarterly payments
based on actual gas production. Both bear interest at 6% per annum. Gains of
$174,000, $145,000 and $204,000 were recognized on the contingent note in 2003,
2002 and 2001, respectively. Consistent with accounting principles generally
accepted in the United States for this transaction, the remaining deferred gain
of $3,238,000 for 2003 relates to the contingent note and will be recognized
over the remaining five years as payments are received.

In 1994 Zapco sold its interests in Biomass Energy Partners to ZRP Royalty
Partners the resulting gain on sale is being amortized until December 31, 2007.
$289,000 remained for December 31, 2003.

NOTE G -- PROPERTY, PLANT AND EQUIPMENT

Consolidated property, plant and equipment consist of the following at December
31, 2003 and 2002:

(in thousands) 2003 2002
---- ----
Land ............................................. $ 98 $ 98
Power Plants, Distribution and Transportation .... 64,048 65,442
,Equipment ....................................... 468 547
Leasehold Improvements ........................... 7 38
Office Equipment and Furnishings ................. 655 455
Vehicles ......................................... 203 181
-----------------------
$ 65,479 $ 66,761
Less Accumulated Depreciation .................... (21,750) (20,426)
-----------------------
$ 43,729 $ 46,335
=======================

NOTE H -- INVESTMENTS IN JOINT VENTURES

(1) Plymouth Envirosystems, Inc. Our wholly owned subsidiary, Plymouth
Envirosystems, Inc., owns a 50% interest in Plymouth Cogeneration Limited
Partnership ("Plymouth Cogeneration") which owns and operates a CHP plant
producing 1.2 MW of electricity and 7 MW of heat at Plymouth State College, in
Plymouth, New Hampshire. The Plymouth Facility provides 100% of the electrical
and heating requirements for the campus, which is a part of the University of
New Hampshire system, under a long-term contract.

The day-to-day operations of the Plymouth Facility are managed by one of our
partners in this project, and management decisions are made by a committee
composed of representatives of the three partners in this project.

For the years ended December 31, 2003, 2002 and 2001, Plymouth Envirosystems
Inc. provided gains of $72,000, $77,000 and $50,000, respectively.

(2) Lehi Envirosystems, Inc. In 1997, our wholly-owned subsidiary, Lehi
Envirosystems, Inc. ("LEHI"), acquired a 50% equity interest in Lehi Independent
Power Associates ("LIPA"), which owns a cogeneration facility in Lehi, Utah (the
"Lehi Facility") and the underlying real estate. The Lehi Facility has been
dormant since 1990. In the first quarter of 2002, the Company recorded an
expense to income equal to the carrying value of the investment of $830,000 due
to the lack of development opportunities at the site given current market
conditions. For the year ended December 31, 2003, 2002 and 2001, LEHI provided
(losses)/gains of $(7,700), $(18,000) and $(16,000), respectively.

(3) Castlebridge Partners, LLC. On August 23, 2000, we issued 568,750
shares of our common stock to Castlebridge Partners LLC in exchange for an
approximate 25% voting interest in Castlebridge, a capital markets and insurance
consulting firm that focuses on commodity derivative markets. Castlebridge is a
risk management firm specializing in risk management services for the energy and
commodities


F-16


industries.

As of December 31, 2002, our ownership interest in Castlebridge was restructured
into a preferred interest with a liquidation preference of $1.7 million and an
annual cumulative dividend of 5% with a preferred interest. We also received a
distribution of 268,750 of our shares held by Castlebridge which is accounted
for as treasury stock.

The market for risk management services for the energy industry deteriorated
significantly during 2002 in connection with lower market power prices and
reduced electricity trading activities among the large independent power
producers and other companies involved in electricity trading. As a result of
the deteriorating outlook, the Company has recognized an impairment equal to the
carrying value of the investment after performing a discounted cash flow value
analysis using a risk adjusted rate commensurate with the specific business
characteristics and potential business opportunities in the energy trading and
commodities markets. During 2002, the Company reduced the valuation of the
investment in this entity by $1.7 million, equal to the carrying value. In 2003,
Castlebridge sold its assets (which were de minimus) to an entity owned by two
employees of Castlebridge (who are not affiliated with the Company) in
consideration for such entity's assumption of Castlebridge's liabilities.
Subsequently, Castlebridge was dissolved effective December 31, 2003.

(4) Marathon Capital LLC ("Marathon"). In 2000, the Company issued 200,000
shares of its common stock to acquire an interest in Marathon. We own preferred
stock in Marathon, yielding a 9% annual dividend and convertible into a 31%
common interest in Marathon. Marathon specializes in arranging financing for
energy projects.

The financing market for energy projects deteriorated significantly during 2002
and few transactions took place due to recurring credit issues in the sector,
both among lenders and borrowers. In connection with the deteriorating market
for energy project financials, US Energy Systems reduced the investment in
Marathon by $1.01 million, equal to the carrying value. In September 2003 we
sold our interest in Marathon for $100,000.

(5) USE GEO Acquisition LLC (USE GEO). This district energy project has
been under development since 1996. If during 2003 we owned a majority of one
class and Marathon Energy LLC, an affiliate of Marathon Capital, LLC, which in
turn is an affiliate of the Company, held all of the other interests in USE GEO,
which were subordinated to our interests and pay no dividends.

Limited progress in the development of the project was achieved in 2002.
Accordingly, on December 31, 2002 the Company recorded an expense equal to the
carrying value of our investment in this entity of $2.5million. USE Geo
Acquisition was dissolved effective December 31, 2003.

(6) Scandinavian Energy Finance, Limited / EnergiSystem i Sverige AB
(SEFL) In November 2002, 1,400 convertible debentures were converted into 1,400
EnergiSystem equity shares at a value of $5,085,000. The Company deconsolidated
SEFL in 2003. The Company's investment in SEFL amounts to $6.3 million at
December 31, 2003.

Our total investments, including joint ventures, as of December 31, 2003 and
2002 are as follows:

(Dollars in thousands)
December 31, 2003 December 31, 2002
----------------- -----------------
Holdings of SEFL ............. -- $ 5,085
Investment in SEFL ........... 6,336 --
LEHI and Plymouth Cogeneration 347 505
ZFC Royalty Partners ......... 920 920
Various Holdings of USE Biogas 648 1,103
-------- --------
Total Investments ............ $ 8,251 $ 7,613
======== ========


F-17


NOTE I -- NOTES PAYABLE AND LONG-TERM DEBT

As of December 31, 2003, the Company's debt was as follows:



- --------------------------------------------------------------------------------------------------------------------------
($'s in 000's) LT Interest
Issuer/Lender Current Balance Maturity Rate Security DSCR (1)
- ------------------------------ ---------- ---------- --------- --------- ---------------------- ---------

Debt
J. Hancock - Series A $3,098 $30,413 2014 9.47% Project Assets(3) 1.25 TFQ
J. Hancock - Series A (2) 196 2,578 2014 9.37% Project Assets(3) 1.25 TFQ
J. Hancock - Series B 266 8,841 2014 Libor +2.39 Project Assets(3) 1.25 TFQ
ABB Energy 1,185 5,938 2011 10.08% Project Assets(3) 1.25 TFQ
AJG Financial Services 183 6,057 -- -- Project Assets(3) 1.25 TFQ
------ -------
Total Debt $4,928 $53,827
------ -------

Total Notes Payable -
Stockholder 688 10,641
------ -------
Total $5,616 $64,468
====== =======


(1) Trailing four quarters; minimum debt service coverage ratio (DSCR)
required for cash distributions.

(2) This shareholder loan to certain of Biogas project subsidiaries
(Non-recourse to the Company and Biogas) is past due. The Company is
seeking to refinance this loan.

(3) Scheduled to be paid in April 2003.

(4) No recourse to the Company.

The Company expects that its obligation for the next five years and for the
period thereafter is:

(Dollars in thousands)
Year Debt Schedule
------------- --------------
2004 $ 5,616
2005 5,784
2006 6,369
2007 6,683
2008 11,989
Thereafter 28,027
-------
Total $64,468
=======


F-18


NOTE J -- INCOME TAXES

The provisions (benefits) for income taxes is as follows:

(Dollars in thousands)
----------------------------------------------------------------------
2003 2002 2001
---------------------- -------

Current
$ -- $ -- $ --
Deferred (356) (7,297) 295
-------- -------- -------
Total (356) (7,297) 295
======== ======== =======

The provision (benefit) for income taxes differs from the Federal statutory rate
for the following reasons:

(Dollars in thousands)
---------------------------------------------------------------------------
2003 2002 2001
------- ------- -------

Provision (Benefit) at Statutory Rate (906) $(8,262) 1,502
Non-deductible Expenses 362 -- --
Impact of Valuation Allowance 201 -- --
Other (13) 134 (1,207)
-------------------------------------------- ------------------ -------
Actual Provision (Benefit) for Income Taxes (356) $(7,297) $ 295
===========================================================================

Provisions have been made for deferred taxes based on differences between the
financial statements and the tax basis of assets and liabilities using currently
enacted rates and regulations. The components of the net deferred tax assets and
liabilities are as follows:

(Dollars in thousands)
---------------------------------------------------------
2003 2002
-------- --------

Deferred Tax Assets:
NOL and Credit Carry Forward $ 20,000 $ 19,217
Property, Plant & Equipment 3,115 2,517
Deferred Revenue 2,445 2,561
Other -- 401
Deferred Tax Liabilities:
Others -- (172)
Rate Income Differential (7,282) (6,119)
Investments -- (1.739)
Valuation Allowance (6,466) (5,380)
-------- --------

Totals $ 11,812 $ 11,286
======== ========


F-19


At December 31, 2003 the Company had an aggregate of $43.0 million of operating
loss carry forward and approximately $6.6 million of capital loss carry
forwards. These net operating loss carry forwards expire in varying amounts
through the year 2023.

NOTE K -- STOCKHOLDERS' EQUITY

Preferred Stock, Series A and D. On March 23, 1998, we issued 250,000 shares of
our Series A convertible preferred stock ("Series A Preferred"), par value $0.01
per share, for $2,250,000 ($9.00 per share).

We granted an option to Energy Systems Investors, LLC ("ESI"), an entity
controlled by Lawrence Schneider and Henry Schneider, two of our executive
officers. The option was for the purchase of 888,888 shares of Series A
Preferred at $9.00 per share ($8,000,000). The expiration date for the option
was extended by one year to August 26, 2000, in consideration for ESI exercising
a portion of the option and acquiring 27,778 shares for $250,000 on June 14,
1999.

In July 2000, ESI exercised its option to acquire the remaining 861,110 shares
of Series A Preferred for an aggregate purchase price of $7,749,990 (i.e. $9.00
per share). We received cash of $8,611 and $7,741,379 in the form of a one year
limited recourse promissory note made by ESI in our favor. The note was paid in
full in May, 2001. The principal amount of the note was retroactively reduced by
the amount of the proceeds the Company received for the Series B Warrants.

As of December 31, 2003, we had warrants outstanding for the purchase of our
common stock as follows:

Shares Exercise Price Expiration Date
-------------- --------------- -----------------

366,666 $6.00 May 1, 2006
22,426 $8.00 January 1, 2004
1,500,000 $4.00 July 30, 2005

There has been no change in the warrants in fiscal 2003, 2002 and 2001.

1996 Stock Option Plan. The 1996 Stock Option Plan (the "1996 Plan")
provided for the granting of nonstatutory options to purchase up to 1,000,000
shares of common stock to our officers, employees, directors and consultants.
The 1996 Plan was administered by a committee appointed by the Board of
Directors which, within the limitation of the 1996 Plan, determined the persons
to whom options will be granted, the number of shares to be covered by each
option, the duration and rate of exercise of each option, the exercise price and
manner of exercise, and the time, manner and form of payment upon exercise of an
option. Options granted under the 1996 Plan may not be granted at a price less
than the fair value of the common stock, as determined by the committee on the
date of grant, and expire not more than ten years from the date of grant.

1997 Stock Option Plan. The 1997 Stock Option Plan (the "1997 Plan")
provides for the granting of nonstatutory options to purchase up to 1,000,000
shares of common stock to our officers, employees, directors and consultants.
The 1997 Plan has substantially the same terms and provisions as the 1996 Plan.

1998 Executive Incentive Compensation Plan. In August 1998, we adopted the
1998 Executive Incentive Compensation Plan (the "1998 Plan"). The 1998 Plan
provides for the granting of stock options, stock appreciation rights,
restricted stock, deferred stock and other stock related awards and incentive
awards that may be settled in cash, stock or property. The 1998 Plan is
superseded the 1997 Plan and the 1996 Plan (the "Pre-Existing Plans"). Under the
1998 Plan, 1,500,000 shares of common stock may be subject to granting of
awards, plus the number of shares with respect to shares previously granted
under the Preexisting Plans that terminate without being exercised, and the
number of shares that are surrendered in payment of any awards or tax
withholding requirements.

The 1998 Plan is administered by a committee designated by the Board of
Directors consisting of not less than two outside, nonemployee directors. The
committee is authorized to select to whom awards will be granted, determine type
and number of awards to be granted and the number of shares of common stock to


F-20


which awards will relate and specify times at which awards will be exercisable
or settleable.

2000 Executive Incentive Compensation Plan. The 2000 Executive Incentive
Compensation Plan (the "2000 Plan") provides for the granting of stock options,
stock appreciation rights, restricted stock, deferred stock and other stock
related awards and incentive awards that may be settled in cash, stock or
property. The total number of shares that may be issued under the 2000 Plan
equals the sum of 10,000,000 shares plus the number of shares that are
surrendered in payment of any award or any tax withholding requirements. All of
these shares may be incentive stock options.

The Board of Directors or a committee thereof administers the 2000 Plan. The
Board is permitted to impose performance conditions with respect to any award,
thereby requiring forfeiture of all or any part of any award if performance
objectives are not met, or to link the time of exercisability or settlement of
an award to the achievement of performance conditions. For awards intended to
qualify as "performance-based compensation" within the meaning of Section 162(m)
of the Internal Revenue Code, such performance objectives shall be based upon
the achievement of a performance goal based upon business criteria described in
or determined pursuant to 2000 plan.

In conjunction with the ZAPCO purchase in 2001, an adjustment in December 2003,
provided in the contract was made. This resulted in adjusting Goodwill by $1.5
million which is comprised of a cash payment of $1.1 million, common shares
totaling 59,813 and 2,667 shares of Series C perferred stock. These shares are
reflected as treasury stock on the financial statements at a value of $399,000.


F-21


During the calendar year 2002, options to acquire 200,000 shares of common stock
were issued under the 2000 Plan. There were no options granted in the year 2003.

Stock option activity is summarized as follows:



- ---------------------------------------------------------------------------------------------------------------------------
Year Ended Year Ended Year Ended
December 31, 2003 December 31, 2002 December 31, 2001

------------------------ ------------------------
Weighted Weighted Weighted
Average Average Average
Exercise Exercise Exercise
Shares Price Shares Price Shares Price
---------- ---------- ---------- ----------

Options Outstanding at Beginning of Year . 6,714,425 $ 3.84 6,915,425 $ 3.90 6,507,675 $ 3.39
Granted .................................. -- -- 200,000 4.00 1,282,000 5.83
Cancelled ................................ (645,500) 3.33 (280,000) 5.67 (118,000) 4.44
Exercised ................................ -- -- (121,000) 2.46 (756,250) 2.36
---------- ---------- ---------- ---------- ---------- ----------
Options Outstanding at End of Year ....... 6,068,925 3.89 6,714,425 3.84 6,915,425 3.90
Options Exercisable at End of Year ....... 6,068,925 3.89 6,714,425 3.84 6,905,425 3.90
========== ========== ========== ========== ========== ==========



Stock Option Activity -- Year Ended December 31, 2003
------------------------------------------------------------------------------------------
Options Outstanding Options Exercisable
---------------- -------------------------- ------------ ------------------------
Weighted
Weighted Average Weighted
Average Remaining Average
Range of Exercise Life in Exercise
Exercise Price Shares Price Years Shares Price
---------------- ----------- ------------- ------------ --------- ------------

$2.00 - $2.50 351,000 $2.41 3.9 351,000 $2.41
$2.875 - $3.00 2,089,925 2.97 4.7 2,089,925 2.97
$3.25 - $3.875 40,000 3.63 6.4 40,000 3.63
$4.00 - $5.00 2,668,000 4.14 6.6 2,668,000 4.14
$6.00 - $7.00 920,000 5.88 7.4 920,000 5.88
---------- ----------
6,068,925 6,068,925
========== ==========


The weighted average fair value of options at date of grant for grants during
the year ended December 31, 2002 was $0.78. The fair value of the options at
date of grant was estimated using the Black-Scholes option-pricing model
utilizing the following assumptions:

----------------------------------------------------------
For the year
ended
December 31, 2002
----------------------------------------------------------
Risk-free Interest Rates.............. 3.91%
----------------------------------------------------------
Expected Option Life in Years......... 10.00
----------------------------------------------------------
Expected Stock Price Volatility....... 0.76
----------------------------------------------------------
Expected Dividend Yield 0.00%
----------------------------------------------------------

There were no options granted in 2003.

Had the Company elected to recognize compensation cost based on the fair value
of the options at the date of grant as prescribed by SFAS 123, pro forma net
profit or (loss) applicable to common stock during the years ended December 31,
2002 would have been net loss of $(16,054,000).

NOTE L -- COMMITMENTS AND CONTINGENCIES

On May 14, 2002, the Company entered into a termination agreement with Mr.
Bernard Zahren respective of his employment agreement and the commencement of a
consulting agreement with an affiliate of Mr. Zahren. Under the terms of the
termination agreement, Mr. Zahren resigned as Chief Executive Officer and
Director of the Company. Under the terms of the consulting agreement, the
consultant will receive quarterly payments of $48,000 ($384,000 in total) as a
consultant of the Company through December 2004.

The Company and its subsidiaries lease various office spaces, including the
corporate headquarters located in White Plains, New York, under operating leases
which expire on various dates. These lease commitments for the next five years
are:


F-22


Year Commitments
--------------- ----------------
2004 $ 382,507
2005 354,048
2006 221,754
2007 176,754
2008 51,098
----------

Total $1,186,160
==========

Lease expenses for 2003, 2002 and 2001 were $321,000, $402,000 and $266,000
respectively.

NOTE M -- RETIREMENT AND PROFIT SHARING PLAN:

In Fiscal year 2002, the Company took over trusteeship of the Biogas 401(k) and
extended the benefits to all employees of the Company and all subsidiaries
covering all full time employees with one year of service with US Energy Systems
Corporate. The employees may defer up to 15% of their salaries up to the maximum
contribution allowed under the Internal Revenue Code. The Company has elected to
match contributions up to 3% per employee. For the year ended December 31, 2003,
2002 and 2001 the Company's total contribution was $82,139, $78,181 and $16,305,
respectively.

NOTE N -- RELATED PARTY TRANSACTIONS

In fiscal year 2003, 2002 and 2001 certain legal costs were incurred by us and
paid to an entity of which a member of our executive management was of counsel.
The amounts paid were $59,727 in the year ended December 31, 2003, $126,845 in
the year ended December 31, 2002 and $992,885 in the year ended December 31,
2001.

AJG GASCO TRANSACTION:

AJG Financial Services purchased all of the economic interests held by Biogas or
its subsidiaries in four gas-operating projects located in Illinois and
Wisconsin (including Morris, Countryside, Brown County East and Brown County
West), including the related Section 29 tax credits. The approximate $12.3
million purchase price paid by AJG Financial Services consisted of (i) $1
million in cash payable at closing, and (ii) a contingent promissory note with a
principal amount of $11,150,000, bearing interest at the rate of 6% per annum,
payable in quarterly installments of principal and interest. This note is
contingent upon the amount of Btus of landfill gas produced by the acquired
projects in each calendar quarter through March 31, 2008. AJG Financial Services
will also fund the annual capital and operating expenses for the projects
through December 31, 2007, up to $1 million in the aggregate. The obligations of
AJG Financial Services under the transfer documents and the notes is secured by
its granting BMC Energy a security interest in AJG Financial Services' ownership
interests in the projects. Immediately after completing the USEB merger, AJG
Financial Services and Cinergy Gasco completed the Cinergy Gasco transaction and
the notes described below in the Cinergy Gasco transaction replaced the
$11,150,000 note.

AJG GENCO TRANSACTION:

AJG Financial Services Inc. owns a 50% limited partnership interest in Illinois
Electrical Generation Partners L.P. ("IEGP") and a 50% limited partnership
interest in Illinois Electrical Generation Partners II L.P. ("IEGP") IEGP owns
directly or indirectly three Biogas Projects and IEGP II owns directly or
indirectly Biogas Projects.

AJG SUBORDINATED LOAN

In 2001, Zapco issued an unsecured, subordinated note to AJG in the principal
amount of approximately $3,775,754 memorializing USEB's obligation to repay
certain advances previously made to Zapco by AJG. The bore an interest rate of
9% and matured on May 1, 2007. On or about October 16, 2003 this note was
amended and restated in the amount of $5,728,883 (to include accrued unpaid
interest on the initial note and certain other obligations from USEB to AJG)
under the amended and restated note. The interest rate was reduced from 9% to
5%, the maturity was extended to December 11, 2011 and the default section was


F-23


modified to provide that if Biogas "Free Cash Flow" is insufficient to pay
scheduled principal and interest payments no event of default will occur but
rather such obligations will accrue.

CINERGY GASCO TRANSACTION:

Following the completion of the AJG Gasco transaction and the merger, Cinergy
Gasco purchased all of the partnership and limited liability company interests
and tax credits AJG Financial Services acquired from Zapco and BMC Energy in the
AJG Gasco transaction. The purchase price was structured to provide Cinergy
Gasco with an internal rate of return of approximately 20%. The approximate
$12.3 million purchase price paid by Cinergy Gasco consisted of (i) $3.3 million
cash paid at closing, and (ii) two promissory notes in the aggregate principal
amount of $9.0 million, bearing interest at the rate of 6% per annum, payable in
quarterly installments of principal and interest. A portion of the purchase
price represented by the notes, approximately $6.3 million is contingent upon
the amount of Btus of landfill gas produced by the acquired projects in each
calendar quarter through March 31, 2008. In addition to paying the purchase
price, Cinergy Gasco also assumed AJG Financial Services' obligation to fund the
annual capital and operating expenses for the projects through December 31,
2007, up to $1 million in the aggregate. USEB and BMC Energy also have the right
to have the promissory note payments made directly to them from Cinergy Gasco,
through an assignment from AJG Financial Services. Cinergy Solutions Holding
Company guaranteed Cinergy Gasco's obligations relating to the Cinergy Gasco
transaction.

NOTE O -- BUSINESS OPERATIONS

As of December 31, 2003, the non-domestic operations of the Company were its
Canadian holdings at USE Canada and Swedish investment through SEFL, an Irish
holding Company. Certain key financial data related to the operations are
reflected below:

U.S. Energy Systems, Inc.
Revenues and Net Income
For the Year Ended December 31, 2003
(Dollars in thousands)

Source of Geothermal USE
Revenue Corp LLC USEB Canada Total
- -------------------------------------------------------------------------------

Energy -- -- $ 22,764 -- $ 20,048
Management Fees $ 550 -- 1,662 -- 2,025
Royalties 23 -- -- -- 24
-------- ----------- -------- -------- --------

Total Revenue $ 573 -- $ 24,426 -- $ 24,999
======== =========== ======== ======== ========

Net Income $ 1,379 $ (8) $ (729) $ 1,196 $ 1,838
======== =========== ======== ======== ========

U.S. Energy Systems, Inc.
Revenues and Net Income
For the Year Ended December 31, 2002
(Dollars in thousands)



Source of Geothermal US USE
Revenue Corp LLC Enviro SEFL USEB Canada Total
- ---------------------------------------------------------------------------------------------------

Energy -- $ 1,300 -- -- $ 20,048 -- $ 30,297
Management Fees $ 449 -- -- -- 1,576 -- 3,097
Interest -- -- -- $ 3,453 326 -- 3,779
Royalties 249 -- -- -- -- -- 249
Other -- -- $ 2,519 -- -- -- 2,519
-------- ----------- -------- -------- -------- -------- --------

Total Revenue $ 698 $ 1,300 $ 2,519 $ 3,453 $ 21,950 -- $ 28,620
======== =========== ======== ======== ======== ======== ========

Net Income $(10,231) $ (5,401) $ 56 $ 507 $ (1,079) $ 1,209 $(16,148)
======== =========== ======== ======== ======== ======== ========



F-24


U.S. Energy Systems, Inc.
Revenues and Net Income
For the Year Ended December 31, 2001
(Dollars in thousands)



Source of Revenue Corp GEO USEnviro SEFL Biogas Canada Total
- --------------------------------------------------------------------------------------------------

Energy -- -- -- -- $ 12,185 -- $ 23,435
Management -- -- -- -- 1,046 -- 1,550
Fees
Interest -- -- -- -- 1,479 -- 1,479
Royalties -- -- -- -- 776 -- 776
Gains on Sale -- -- -- -- 2,361 -- 2,361
of Interests &
Rights
Recycle -- -- $ 4,913 -- -- -- 4,913
-------- -------- -------- -------- -------- -------- --------

Total Revenues -- -- $ 4,913 -- $ 17,847 -- $ 22,760
======== ======== ======== ======== ======== ======== ========

Net Income $ (1,375) $ 3,865 $ (180) -- $ 1,150 $ 1,029 $ 4,489
======== ======== ======== ======== ======== ======== ========


NOTE P - Sale of Subsidiary

On June 30, 2002, the Company sold its shares of US Enviro to KGS Environmental
LLC, an employee-led partnership for approximately $ 1.7 million, which included
cash consideration and the assumption of debt. This sale resulted in net of tax
loss of $ 1.6 million. The sale of US Enviro, a domestic provider of
environmental services, including recycling and remediation, was part of the
Company's previously announced strategy to divest or discontinue non-core
operations.

The following pro forma combined revenue and net income is provided as if the
sale of US Enviro had taken place effective January 1, 2002:

(Dollars in thousands)



As of As of
December 31, June 30,
2002 2002
Adjusted
U.S. Energy US Enviro U.S. Energy

Revenues $ 28,620 $ 2,519 $ 26,101
=======================================

Net Income (Loss) $ (16,148) $ 56 $ (16,204)
=======================================

Earnings per Share:

Income (Loss) per Share Common - Basic $ (1.39) $ 0.01 $ (1.38)
=======================================
Income (Loss) per Share Common - Diluted $ (1.39) $ 0.01 $ (1.38)
=======================================

Weighted Average Number of Shares Outstanding - Basic 12,186 12,080 12,186

Weighted Average Number of Shares Outstanding - Diluted 17,351 17,250 17,351


Effective June 30, 2003, the Company sold its 95% membership interest in US
Energy Geothermal LLC to a subsidiary of Ormat Nevada, Inc. for approximately
$1.0 million in cash. As part of such transaction the purchaser and Ormat
Nevada, Inc. agreed to indemnify US Energy against certain potential liabilities
of US Energy Geothermal LLC, the subsidiary which owned the Steamboat Geothermal
Plant, including the pending lawsuit brought against US Energy Geothermal LLC by
Geothermal Development Associates and Delphi Securities up to the amount of the
purchase price.

The following pro forma combined revenue and net income as of September 30, 2003
is provided as if the sale of U.S. Energy Geothermal LLC had taken place
effective January 1, 2003:


F-25




As of As of As of
December 31, June 30, 2003 December 31,
2003 2003
Adjusted
U.S. Energy US Energy U.S. Energy
Geothermal LLC

Revenues $ 24,999 $ 993 $ 24,006
========= ========= =========

Net Income (Loss) $ 1,838 $ (8) $ 1,846
========= ========= =========

Earnings per Share:

Income (Loss) per Share Common - Basic -- -- --
========= ========= =========
Income (Loss) per Share Common - Diluted -- -- --
========= ========= =========

Weighted Average Number of Shares Outstanding - Basic 11,950 11,950 11,950

Weighted Average Number of Shares Outstanding - Diluted 17,115 17,115 17,115


NOTE Q -- MAJOR CUSTOMERS

During the year ended December 31, 2003, one of our operating units had one
customer, the revenues of which exceeded 10% of the total revenue for the year.
This unit sells energy to Commonwealth Edison. The total revenue earned for
electricity delivered to Commonwealth Edison amounted to $8,866,000 for the year
2003.

During the years ended December 31, 2002 and 2001, the major customers revenues
were $7,762,000 and $3,658,000, respectively except for discontinued operations.

NOTE R -- DISCONTINUED OPERATIONS

The Company decided to sell the USE Canada operation to the Countryside Fund.
The closing date of the sale was April 8, 2004. The sale of USE Canada results
in that entity becoming a discontinued operation. Assets and liabilities to be
disposed of comprise the following as of December 31:

---------------------------------------------------------------------
2003 2002 2001
---- ---- ----
---------------------------------------------------------------------
Assets:

---------------------------------------------------------------------
Cash $ 676 $ 1,049 $ 384
---------------------------------------------------------------------
Accounts Receivable 1,813 1,796 1,385
---------------------------------------------------------------------
Other Current Assets 833 842 645
---------------------------------------------------------------------
Property Plant and Equipment 22,948 17,979 14,508
---------------------------------------------------------------------
Deferred Tax Asset 1,678 1,310 3,767
---------------------------------------------------------------------
Other Assets 232 160 --
---------------------------------------------------------------------
Total Assets $ 28,180 $ 23,136 $ 20,689
=====================================================================


F-26


---------------------------------------------------------------------
Liabilities:

---------------------------------------------------------------------
Current Portion of Long Term Debt $ 2,013 $ 733 172
---------------------------------------------------------------------
Accounts Payable and Other 2,316 3,841 3,464
---------------------------------------------------------------------
Long Term Debt less current portion 17,416 13,662 13,681
---------------------------------------------------------------------
Total Liabilities $ 21,745 $ 18,236 $ 17,317
=====================================================================

These assets and liabilities are reflected on the Balance Sheet under the
caption "Assets to be disposed of" and "Liabilities to be disposed of".

Total revenues for the year 2003, 2002, and 2001 were $12,689,000, $10,021,000,
and $4,710,000. USE Canada was purchased by the Company on June 11, 2001.

The Company sold Geothermal, LLC on June 30, 2003. These assets and liabilities
are reflected on the Balance Sheet under the caption "Assets to be disposed of"
and "Liabilities to be disposed of".

------------------------------------------------------------
2003 2002 2001
---- ---- ----
------------------------------------------------------------
Assets:
------------------------------------------------------------
Cash -- 63 73
------------------------------------------------------------
Accounts Receivable -- 4,319 294
------------------------------------------------------------
Other Current Assets -- 21 13
------------------------------------------------------------
Property Plant and Equipment -- 1,154 5,946
------------------------------------------------------------
Deferred Tax Asset -- -- --
------------------------------------------------------------
Other Assets -- -- --
------------------------------------------------------------
Total Assets -- $5,557 $6,326
============================================================

------------------------------------------------------------
Liabilities:

------------------------------------------------------------
Current Portion of Long Term Debt -- -- --
------------------------------------------------------------
Accounts Payable and Other -- 981 1,956
------------------------------------------------------------
Long Term Debt less current portion -- -- --
------------------------------------------------------------
Total Liabilities -- 981 1,956
============================================================

Total revenues for the year 2003, 2002, and 2001 were $996,000, $1,300,000 and
$704,000.

NOTE S - ACCOUNTING CHANGES

The Company's accounting policy pertaining to the financial accounting of the
Illinois rate incentives received by its Illinois-based biogas to energy
projects was changed effective April 1, 2001. The change in tax accounting had
no impact on consolidated cash flow. In addition, an adjustment was also made to
the purchase accounting related to the acquisition of Biogas in 2001. As a
result of that adjustment, a $1.7 million gain pertaining to the sale of certain
interests in partnerships that own biogas collection facilities and a $2.3
million non-recurring fee received in connection with such sale were not
recognized as revenue.


F-27


Following is a summary of the prior period adjustments made to the audited
financial statements:



(dollars in thousands)
- -----------------------------------------------------------------------------------
Balance Sheet:
- -----------------------------------------------------------------------------------
Deferred Minority Retained
Tax Asset Goodwill Interest Earnings
- -----------------------------------------------------------------------------------

Year 2001 $ (3,469) $ (430) $ (1,783) $ (2,116)
- -----------------------------------------------------------------------------------

Year 2002 (4,809) (430) (2,396) (2,843)
- -----------------------------------------------------------------------------------

Year 2003 (7,283) (430) (3,528) (4,185)
- -----------------------------------------------------------------------------------



(dollars in Thousands)
- ------------------------------------------------------------------------------------
Statements of Operation:

Minority Income Tax Net
Revenues Interest Expense Income
- ------------------------------------------------------------------------------------

Year 2001 $ (4,015) $ 1,783 $ 116 $ (2,116)
- ------------------------------------------------------------------------------------
Year 2002 -- 613 (1,340) (727)
- ------------------------------------------------------------------------------------
Year 2003 -- 1,132 (2,474) (1,342)
- ------------------------------------------------------------------------------------
Total $(4015) $ 3,528 $ (3,698) $ (4,185)
====================================================================================


NOTE T - BASIS OF PRESENTATION

As indicated in Note B the Company formed and invested in SEFL in 2002 together
with EIC. The Company owned 51% in 2002 and during 2003 reduced its ownership to
32%. The Company consolidated SEFL in 2002. Due to the Company's reduced
ownership, the investment in SEFL is being accounted for using the equity method
in 2003. The deconsolidation of the SEFL Joint Venture had a significant affect
on the Company's consolidated total assets. The income from the SEFL joint
venture is reflected on the Consolidated Statements for the year ended December
31, 2003 under the caption "(Gain) from joint ventures". Due to the change in
accounting of the reporting entity certain Balance Sheet accounts were reduced
as follows:

Notes Receivable $52,726
Long-term debt 45,398
Minority interest liability 5,944


F-28


SIGNATURES

In accordance with Section 13 or 15(d) of the Exchange Act, the registrant
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.

U.S. ENERGY SYSTEMS, INC.
By:

/s/ GORAN MORNHED April 14, 2004
--------------------------------------
Goran Mornhed,
President and Chief Executive Officer


/s/ THOMAS J. NOONAN April 14, 2004
--------------------------------------
Thomas J. Noonan
Chief Accounting Officer

In accordance with the Exchange Act, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.

/s/ STEPHEN BROWN April 14, 2004
-------------------------------------
Stephen Brown,
Director


/s/ EVAN EVANS April 14, 2004
-------------------------------------
Evan Evans,
Director


/s/ CARL GREENE April 14, 2004
-------------------------------------
Carl Greene,
Director


April 14, 2004
-------------------------------------
Stephen Harkness,
Director


April 14, 2004
-------------------------------------
Kenneth Leung,
Director


/s/ IRVING LEVINE April 14, 2004
-------------------------------------
Irving Levine,
Director



SIGNATURES (Continued)


/s/ GORAN MORNHED April 14, 2004
-------------------------------------
Goran Mornhed,
President and Chief Executive Officer
and Director


/s/ THOMAS J. NOONAN April 14, 2004
-------------------------------------
Thomas J. Noonan,
Chief Accounting Officer


/s/ LAWRENCE I. SCHNEIDER April 14, 2004
-------------------------------------
Lawrence I. Schneider,
Chairman of the Board of Directors


April 14, 2004
-------------------------------------
Mark Strauch,
Director