Exhibit 99.1

FOR IMMEDIATE RELEASE

TECO ENERGY REPORTS FOURTH-QUARTER RESULTS

Company provides 2015 earnings-per-share guidance

in a range between $1.08 and $1.11

TAMPA, Fla. (Feb. 9, 2015) — TECO Energy, Inc. (NYSE:TE) today reported that fourth-quarter 2014 non-GAAP results from continuing operations were $45.0 million, or $0.19 on a per-share basis, compared with $37.7 million, or $0.18 on a per-share basis in 2013. The 2014 results exclude a $14.6 million consolidated state deferred tax balance adjustment related to the pending sale of TECO Coal, and $3.0 million of costs associated with the acquisition of New Mexico Gas Co. (NMGC). On a per share basis, the NMGC acquisition was approximately $0.03 accretive to fourth-quarter results.

Full-year 2014 non-GAAP results from continuing operations, which exclude the net impact of $6.7 million of consolidated state deferred tax balance adjustments and $16.6 million of costs associated with the integration and acquisition of NMGC, were $229.7 million, or $1.03 on a per-share basis, compared with $194.9 million, or $0.91 on a per-share basis in 2013. On a per share basis, these results reflect approximately $0.01 of accretion from the acquisition of NMGC.

TECO Energy President and Chief Executive Officer John Ramil said, “2014 was a watershed year for TECO Energy. Our Florida utilities achieved net income growth of more than 15%, and enjoyed customer growth well above national averages. We expanded our utility operations with our NMGC acquisition in September, and we’re benefiting from accretion from the acquisition earlier than we originally expected. We are committed to exiting the coal business, and continue to work with the purchaser to complete the sale this year. Upon closing, this action will complete our return to our utility foundation.”

Fourth-quarter 2014 GAAP net income was $10.8 million, or $0.04 per share, compared with $42.0 million, or $0.20 per share, in the fourth quarter of 2013. Net income from continuing operations was $27.4 million or $0.11 per share in the 2014 fourth quarter, compared with $35.4 million, or $0.17 per share, for the same period in 2013.

Full-year 2014 GAAP net income was $130.4 million, or $0.58 per share, compared with net income of $197.7 million, or $0.92 per share, in 2013. Net income from continuing operations was $206.4 million, or $0.92 per share, compared with $188.7 million, or $0.88 per share in 2013.

As a result of the previously announced agreement to sell TECO Coal (see the Discontinued Operations section later in this release), those operations were classified as discontinued operations in the third quarter of 2014.

The full-year $76.0 million loss in discontinued operations includes the operating results from TECO Coal, the impairment and valuation charges totaling $76.4 million and items related to the 2012 sale of TECO Guatemala (see the Discontinued Operations section later in this release).

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Non-GAAP Results

Non-GAAP results from continuing operations exclude transaction and integration costs associated with the acquisition of NMGC, and consolidated deferred tax balance adjustments related to the acquisition of NMGC and the pending sale of TECO Coal.

The table below compares the TECO Energy GAAP net income with the non-GAAP measures used in this release. Non-GAAP results exclude charges and gains contained in the Results Reconciliation table later in this release. See the Non-GAAP Presentation section and Results Reconciliation table later in this release for reconciliation to GAAP results and a discussion regarding this presentation of non-GAAP results and management’s use of this information.

All amounts included in the non-GAAP table below are after tax.

Segment Reporting

The table below includes TECO Energy segment information on a GAAP basis, which includes all charges and gains for the periods shown.

Segment Information

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All amounts included in the operating company discussions below are after tax, unless otherwise noted.

Tampa Electric

Tampa Electric’s net income for the fourth quarter of 2014 was $37.4 million, compared with $39.8 million for the same period in 2013. While fourth quarter results in 2014 reflect customer growth and one additional month of higher rates from the rate case settlement effective Nov. 1, 2013, energy sales were lower due to milder weather, and results included three months of lower software amortization expense compared to a full 12-month benefit of $4 million recognized in 2013’s fourth quarter. Results also reflect $0.6 million lower earnings on assets recovered through the Environmental Cost Recovery Clause (ECRC) due to a lower current weighted average cost of capital, which includes the lower return on equity (ROE) from the 2013 rate case settlement. Results reflected lower operations and maintenance expenses and slightly higher interest expense from higher long-term debt balances. Fourth-quarter net income in 2014 included $3.2 million of Allowance for Funds Used During Construction (AFUDC) equity, which represents allowed equity cost capitalized to construction costs, compared with $2.0 million in the 2013 quarter.

Total degree days in Tampa Electric’s service area in the fourth quarter of 2014 were 10% below normal and 12% below the 2013 period. Total net energy for load, which is a calendar measurement of retail energy sales rather than a billing-cycle measurement, decreased 2.8% in the fourth quarter of 2014 compared with the same period in 2013, driven by milder weather partially offset by 1.6% customer growth. In the 2014 period, pretax base revenues were essentially unchanged from 2013, as lower energy sales were offset by approximately $7 million of higher pretax base revenue as a result of the 2013 rate case settlement. Sales to residential and commercial customers decreased primarily from the milder weather, while sales to non-phosphate industrial customers increased due to the improving economy. Sales to lower-margin industrial-phosphate customers were lower as self-generation by those customers increased. (The quarterly energy sales shown on the statistical summary that accompanies this earnings release reflect the energy sales based on the timing of billing cycles, which can vary period to period.)

Operations and maintenance expense, excluding all Florida Public Service Commission (FPSC)-approved cost-recovery clauses, was $2.0 million lower than in the 2013 quarter. These results reflect $3.9 million of higher cost to reliably serve customers and operate and maintain the system, which was more than offset by lower employee-related costs, due to the timing of the accrual of performance-based incentive compensation for all employees and lower pension expense. Depreciation and amortization expense increased $3.8 million in 2014, primarily as a result of normal additions to facilities to reliably serve customers, and the absence of the benefit to depreciation in the 2013 quarter discussed above.

Full-year net income was $224.5 million, compared with $190.9 million in 2013, driven primarily by the benefits from the 2013 rate case settlement, higher energy sales

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from 1.6% customer growth and a stronger economy, and lower operations and maintenance expense. Full-year net income in 2014 included $10.5 million of AFUDC equity, compared with $6.3 million in the 2013 period. These items were partially offset by higher depreciation expense, and $2.9 million lower earnings on assets recovered through the ECRC. Full-year total degree days in Tampa Electric’s service area were 4% below normal, and 3% below 2013. Pretax base revenue included almost $50 million of higher revenue as a result of the 2013 rate case settlement. In the 2014 full-year period, total net energy for load was 0.7% higher than in 2013, driven by customer growth.

Operations and maintenance expenses, excluding all FPSC-approved cost-recovery clauses, decreased $1.0 million in the 2014 full-year period reflecting lower employee-related costs, including pension expense, and the elimination of the storm damage reserve accrual, partially offset by higher costs to operate and maintain the system. Compared to the 2013 full-year period, depreciation and amortization expense increased $6.0 million, reflecting additions to facilities to serve customers.

Peoples Gas

Peoples Gas System reported net income of $8.9 million for the fourth quarter, compared with $7.6 million in 2013. Average customer growth was 2.3% in the quarter, which resulted in higher therm sales to residential customers helped by early winter weather. Sales to commercial and industrial customers increased as a result of the stronger Florida economy. Fourth-quarter results in 2014 reflected almost $1.3 million lower non-fuel operations and maintenance expense driven primarily by lower employee-related costs, which was affected by the timing of performance-based incentive compensation accruals for all employees based on achievement of financial results. The fourth quarter of 2013 reflected the full accrual of incentives, while in 2014 the accruals occurred in the third and fourth quarters. Depreciation and amortization increased $1.2 million due to normal additions to facilities to serve customers, and the absence of the benefit recorded in 2013 to change software amortization similar to Tampa Electric’s discussed above. Sales to power-generation customers decreased due to two power generators not operating.

Peoples Gas reported full year 2014 net income of $35.8 million, compared with $34.7 million in 2013. Results reflect a 1.9% higher average number of customers and higher therm sales to residential and commercial customers due to more-normal winter weather and improving economic conditions. Higher commercial sales volumes were also helped by an almost doubling of therms sold to compressed natural gas (CNG) vehicle fleets. Sales to power generation customers decreased due to the same reasons as in the fourth quarter, and off-system sales volumes decreased due to new entrants in the off-system sales market. Depreciation and amortization increased $1.6 million due to normal additions to facilities to serve customers. Non-fuel operations and maintenance expense was in line with 2013.

New Mexico Gas Co.

NMGC reported fourth quarter net income of $11.4 million. Fourth quarter heating degree days in New Mexico were 7% below normal, reflecting a late start to winter temperatures. Fourth quarter 2014 customer growth was 0.4%.

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Discontinued Operations

The fourth quarter 2014 loss in discontinued operations of $16.6 million consisted of the TECO Coal loss from operations described below and an additional $11.6 million impairment charge and related tax valuation adjustments related to the current market value of TECO Coal, and $0.2 million of costs recorded in the Other segment. Full-year discontinued operations resulted in a loss of $76.0 million comprised of the full-year operating results discussed below, the impairment charges and tax valuation allowances totaling $76.4 million, and net benefits of $6.0 million recorded in the Other segment, relating to taxes and the 2012 sale of TECO Guatemala.

The fourth-quarter loss from operations was $4.8 million on sales of 1.5 million tons, compared with net income of $6.7 million on similar volume sold in the same period in 2013. In 2014, fourth-quarter results reflect selling prices and costs associated with reductions in personnel and steps taken in advance of closing the sale of the company.

TECO Coal’s full-year loss from operations in 2014 was $5.6 million on sales of 5.5 million tons, compared with net income of $9.0 million on 5.8 million tons sold in the 2013 period. The 2014 full-year results reflect the same factors as the quarter.

Other (net)

The cost from continuing operations for Other net of eliminations in the fourth quarter of 2014 was $30.3 million, compared with a cost of $12.0 million in the same period in 2013. The non-GAAP cost from continuing operations in 2014 was $12.7 million, compared with a cost of $9.7 million in 2013. Non-GAAP costs in 2014 excluded a $14.6 million consolidated deferred income tax balance adjustment to reflect the pending sale of TECO Coal and $3.0 million of costs associated with the acquisition and integration of NMGC, compared with $2.3 million of NMGC-related costs in 2013. The higher non-GAAP costs in 2014 reflect $1.1 million of interest expense related to notes at New Mexico Gas Intermediate (NMGI), the parent of NMGC, and $1.0 million of interest expense previously allocated to TECO Coal.

The 2014 full-year cost from continuing operations was $64.4 million, compared with $36.9 million in the 2013 period. The non-GAAP cost from continuing operations was $41.1 million in 2014, which excludes $16.6 million of NMGC acquisition- and integration-related costs, and net consolidated state deferred tax balance adjustments of $6.7 million, compared with $30.7 million in 2013, which excluded $6.2 million of NMGC acquisition-related costs. The higher non-GAAP cost in 2014 reflects $1.4 million of NMGI interest expense, the fourth-quarter interest expense previously allocated to TECO Coal, $3.5 million of integration-related labor and other unallocated costs, and $3.1 million of tax items, including offsets at parent to tax benefits at Tampa Electric.

The segment data accompanying this earnings release presents Other and Eliminations as separate segments. The discussion above nets the two segments.

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2015 Guidance from Continuing Operations in a range between $1.08 and $1.11

TECO Energy expects to deliver earnings from continuing operations, excluding charges or gains, in a range between $1.08 and $1.11 in 2015, driven by the factors discussed below.

Tampa Electric expects to earn in the upper half of its allowed ROE range of 9.25% to 11.25%, driven by $7.5 million of higher base revenues that were effective Nov. 1, 2014 as a result of its September 2013 rate case settlement agreement, average customer growth trends in line with those experienced in 2014, and higher AFUDC. Retail energy sales to residential, commercial and non-phosphate industrial customers are expected to grow by almost 1.0%. Total retail sales are expected to be about 0.3% higher, as sales to lower-margin interruptible Industrial-Phosphate customers are expected to decline due to increased self-generation. These sales forecasts reflect the impact of improved lighting and appliance efficiency and customer energy conservation. Full-year operations and maintenance expenses are expected to be lower than 2014 as lower employee-related costs and the impact of synergies in Florida as a result of the NMGC integration more than offset higher costs to operate the system and reliably serve customers. Depreciation expense is expected to be higher due to normal additions to facilities to serve customers.

Peoples Gas expects to continue to earn in the upper half of its allowed ROE range of 9.75% to 11.75% from customer growth trends in line with those experienced in 2014, and continued interest from customers utilizing petroleum and other fuel sources to convert to natural gas. Operations and maintenance expense and depreciation trends are expected to be similar to Tampa Electric.

NMGC expects 2015 customer growth of more than 0.5%, volume growth at about the same level, and lower operations and maintenance expense from integration synergies. NMGC will credit $2.0 million to customer bills in the first 12 months post-closing and $4.0 million in each subsequent 12-month period until new base rates are established. NMGC is expected to be accretive to TECO Energy’s earnings per share in 2015.

The forecasts for all utilities assume normal weather in 2015.

Other (net) cost is expected to increase in 2015. While the benefit of refinancing the $191 million of 6.75% notes due in the spring of 2015 is expected to offset the impact of no longer allocating interest expense to TECO Coal, non-utility interest cost in 2015 will reflect a full year of interest on debt at NMGI.

Discontinued operations will include the operating results for TECO Coal through the closing of the sale as well as reflect the accounting for the completion of the pending sale. TECO Coal expects to record operating losses during this period due to continued weak coal market conditions. The current market conditions may impact the ultimate timing and terms of the closing of the sale.

Non-GAAP Presentation

Management believes it is helpful to present a non-GAAP measure of performance that reflects the ongoing operations of TECO Energy’s businesses and that allows investors to better understand and evaluate the business as it is expected to operate in future periods.

Management and the board of directors use non-GAAP measures as a tool for measuring the company’s performance, for making decisions that are dependent upon the profitability of the company’s various operating units, and for determining levels of incentive compensation.

The non-GAAP measures of financial performance used by the company are not measures of performance under accounting principles generally accepted in the United States and should not be considered an alternative to net income or other GAAP figures as an indicator of the company’s financial performance or liquidity. TECO Energy’s non-GAAP presentation of net income may not be comparable to similarly titled measures used by other companies.

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The Results Reconciliation table below presents non-GAAP financial results after eliminating the effects of identified charges and gains. This provides investors additional information to assess the company’s results and future earnings potential.

Results Reconciliation

Webcast

As previously announced, TECO Energy will host a webcast with the investment community to discuss its quarterly results and 2015 guidance at 10:00 a.m. Eastern time today. The webcast will be accessible through a link on TECO Energy’s website: www.tecoenergy.com. The webcast and accompanying slides will be available for replay for 30 days through the website, beginning approximately two hours after the conclusion of the live event.

TECO Energy Inc. (NYSE: TE) is an energy-related holding company with regulated electric and gas utilities in Florida and New Mexico. Tampa Electric serves more than 700,000 customers in West Central Florida; Peoples Gas System serves more than 350,000 customers across Florida; and New Mexico Gas Co. serves more than 513,000 customers across New Mexico. Other TECO Energy subsidiaries include TECO Coal, which owns and operates coal-production facilities in Kentucky, Tennessee and Virginia.

Note: This press release contains forward-looking statements, which are subject to the inherent uncertainties in predicting future results and conditions. Actual results may differ materially from those forecasted. The forecasted results are based on the company’s current expectations and assumptions, and the company does not undertake to update that information or any other information contained in this press release, except as may be required by law. Factors that could impact actual results include: regulatory actions by federal, state or local authorities; the ability to successfully implement the integration

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plans for NMGC and generate the financial results to make the acquisition accretive; unexpected capital needs or unanticipated reductions in cash flow that affect liquidity; the ability to access the capital and credit markets when required; general economic conditions affecting customer growth and energy sales at the utility companies; economic conditions affecting the Florida and New Mexico economies; weather variations and customer energy usage patterns affecting sales and operating costs at the utilities and the effect of weather conditions on energy consumption; the effect of extreme weather conditions or hurricanes; general operating conditions; input commodity prices affecting cost at all of the operating companies; natural gas demand at the utilities; the ability of TECO Energy’s subsidiaries to operate equipment without undue accidents, breakdowns or failures; and the ability of the purchasers of TECO Coal to obtain suitable financing, and satisfy other closing conditions for TECO Energy to successfully close the sale transaction. Additional information is contained under “Risk Factors” in TECO Energy, Inc.‘s Annual Report on Form 10-K for the period ended Dec. 31, 2013, and as updated in subsequent filings with the SEC.

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Summary Information

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DECEMBER 2014

Figures appearing in these statements are presented as general information and not in connection with any sale or offer to sell or solicitation of an offer to buy any securities, nor are they intended as a representation by the company of the value of its securities. All figures reported are subject to adjustments as the annual audit by independent accountants may determine to be necessary and to the explanatory notes affecting income and balance sheet accounts contained in the company’s Annual Report on Form 10-K. Reference should also be made to information contained in that and other reports filed by TECO Energy, Inc. and Tampa Electric Company with the Securities and Exchange Commission.

TECO ENERGY, Inc.

CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

(All significant intercompany transactions have been eliminated in the consolidated financial statements.)

TECO ENERGY, Inc.

CONSOLIDATED BALANCE SHEETS (Unaudited)

(All significant intercompany transactions have been eliminated in the consolidated financial statements.)

TECO ENERGY, Inc.

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(All significant intercompany transactions have been eliminated in the consolidated financial statements.)

TECO ENERGY, Inc.

SEGMENT INFORMATION (Unaudited)

TAMPA ELECTRIC COMPANY

ELECTRIC OPERATING STATISTICS (Unaudited)