ADA-ES INC - FORM 10-K - EX-23.1 - CONSENT OF EHRHARDT KEEFE STEINER & HOTTMAN PC - March 29, 2010

Attached files

file filename
10-K - FORM 10-K - ADA-ES INCd10k.htm
EX-31.2 - SECTION 302 CFO CERTIFICATION - ADA-ES INCdex312.htm
EX-32.2 - SECTION 906 CFO CERTIFICATION - ADA-ES INCdex322.htm
EX-21.1 - SUBSIDIARIES OF ADA-ES, INC - ADA-ES INCdex211.htm
EX-31.1 - SECTION 302 CEO CERTIFICATION - ADA-ES INCdex311.htm
EX-10.64 - FIRST AMENDMENT TO PURCHASE AND SALE AGREEMENT DATED AS OF OCTOBER 26, 2009 - ADA-ES INCdex1064.htm
EX-10.66 - FIRST AMENDMENT TO CHEMICALS, EQUIPMENT, AND TECHNICAL ENGINEERING SERVICES - ADA-ES INCdex1066.htm
EX-10.65 - LOAN COMMITMENT AGREEMENT DATED AS OF OCTOBER 26, 2009 - ADA-ES INCdex1065.htm
EX-32.1 - SECTION 906 CEO CERTIFICATION - ADA-ES INCdex321.htm
EX-10.68 - SECURITY AND PLEDGE AGREEMENT DATED AS OF OCTOBER 26, 2009 - ADA-ES INCdex1068.htm
EX-10.69 - PROMISSORY NOTES DATED AS OF OCTOBER 26, 2009 - ADA-ES INCdex1069.htm
EX-10.67 - CONTINUING UNCONDITIONAL GUARANTY DATED AS OF OCTOBER 26, 2009 - ADA-ES INCdex1067.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statements on Forms S-8 Nos. 333-110479, 333-112587, 333-114546, 333-121234, 333-143004 and 333-144820 and Form S-3 Nos. 333-119795, 333-131085, 333-153596, 333-159715 and 333-164792 of ADA-ES, Inc. and Subsidiaries of our report dated March 29, 2010 relating to our audit of the consolidated financial statements, which appears in this Annual Report on Form 10-K of ADA-ES, Inc. and Subsidiaries as of and for the year ended December 31, 2009.

/s/ Ehrhardt Keefe Steiner & Hottman PC

Denver, Colorado

March 29, 2010

ADA-ES INC Reports