TMEN / ThermoEnergy Corporation - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

ThermoEnergy Corporation
US ˙ OTCPK

Grundläggande statistik
CIK 884504
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to ThermoEnergy Corporation
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
August 11, 2016 EX-99.1

Joseph D. Meddings

Exhibit 99.1 Joseph D. Meddings PO Box 6283 Providence, Rhode Island 02940 (401)421-3330 Ext 2 [email protected] July 29, 2016 TO THE CREDITORS OF Thermo-Energy Corporation, Inc. Dear Sir or Madam: On March 4,2015, Thermo-Energy Corporation ("TMEN") entered into an Assignment for the Benefit of Creditors ("Assignment"). You were originally informed of this Assignment by my March 23, 201

August 11, 2016 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2016 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

February 17, 2015 SC 13G/A

TMEN / ThermoEnergy Corp. / GUGGENHEIM CAPITAL LLC - SCHEDULE 13G AMENDMENT FILING Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 7)* ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 883906406 (CUSIP Number) December 31, 2014** (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

September 2, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K 1 s1003098k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 23, 2014 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-461

September 2, 2014 EX-10.1

ThermoEnergy Corporation Loan Agreement (as amended through August 18, 2014)

EX-10.1 2 s100309ex10-1.htm EXHIBIT 10.1 ThermoEnergy Corporation Loan Agreement (as amended through August 18, 2014) This Agreement is made by and among ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and the individuals and entities identified on Schedule I hereto (each, a “Lender”) as of the 23rd day of June 2014. Whereas each of the Lenders is willing to make a loan to the

September 2, 2014 EX-10.3

ThermoEnergy Corporation Security Agreement

EX-10.3 4 s100309ex10-3.htm EXHIBIT 10.3 ThermoEnergy Corporation Security Agreement This Security Agreement (this “Agreement”) is dated as of June 23, 2014, and is entered into by and among ThermoEnergy Corporation, a Delaware corporation having its principal place of business in Worcester, Massachusetts (the “Borrower”) and the persons and entities named on Schedule I hereto (collectively, the “

September 2, 2014 EX-10.2

12% SECURED PROMISSORY NOTE

Principal Amount: $ June 23, 2014 12% SECURED PROMISSORY NOTE For Value Received, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) the sum of Dollars ($) (or such lesser amount as may be then outstanding) together with interest on the unpaid principal hereof from the date hereof at the rate of twelve percent (12%) per annum, compounded quarterly.

August 19, 2014 NT 10-Q

TMEN / ThermoEnergy Corp. NT 10-Q - - FORM NT 10-Q

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0058 Expires: August 31, 2015 Estimated average burden hours per response 2.

May 23, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2014 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

May 15, 2014 10-Q

Quarterly Report - FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2014 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

April 30, 2014 10-K/A

Annual Report - FORM 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33?46104?FW THER

April 14, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 11, 2014 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

March 31, 2014 EX-21.1

Subsidiaries of the Issuer

EX-21.1 2 v372101ex21-1.htm EXHIBIT 21.1 EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization CASTion Corporation (97%) Massachusetts United Power Alliance LLC (50%) Delaware ThermoEnergy Power Systems, LLC (85%) Delaware Cast Acquisition Corp. Delaware

March 31, 2014 10-K

Annual Report - FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CORPORATION

March 4, 2014 EX-10.1

ThermoEnergy Corporation Standstill Agreement

EX-10.1 2 v370571ex10-1.htm EXHIBIT 10.1 ThermoEnergy Corporation Standstill Agreement Agreement dated as of February 28, 2014 by and among ThermoEnergy Corporation, a Delaware corporation (the “Company”), The Roenigk Family Trust dated November 10, 2004 (“Roenigk”), Robert S. Trump (“Trump”) and Empire Capital Partners, LP, Empire Capital Partners, Ltd., and Empire Capital Partners Enhanced Maste

March 4, 2014 8-K

Financial Statements and Exhibits, Other Events

8-K 1 v3705718-k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2014 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 3

February 13, 2014 SC 13G/A

TMEN / ThermoEnergy Corp. / GUGGENHEIM CAPITAL LLC - SCHEDULE 13G HOLDINGS REPORT AMENDMENT Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 6)* ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 883906406 (CUSIP Number) December 31, 2013** (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

November 14, 2013 10-Q

Quarterly Report - FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2013 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

August 27, 2013 EX-10.1

August 20, 2013

August 20, 2013 ThermoEnergy Corporation 10 New Bond Street Worcester, Massachusetts 01606 Re: Limitation on Beneficial Ownership Reference is made to that certain Letter Agreement by and between ThermoEnergy Corporation (the “Company”) and each of Empire Capital Partners, L.

August 27, 2013 EX-10.4

ThermoEnergy Corporation Security Agreement

EX-10.4 5 v353694ex10-4.htm EXHIBIT 10.4 ThermoEnergy Corporation Security Agreement This Security Agreement (this “Agreement”) is dated as of August 22, 2013, and is entered into by and among ThermoEnergy Corporation, a Delaware corporation having its principal place of business in Worcester, Massachusetts (the “Borrower”) and the persons and entities named on Schedule I hereto (collectively, the

August 27, 2013 EX-10.3

12% SECURED PROMISSORY NOTE

EX-10.3 4 v353694ex10-3.htm EXHIBIT 10.3 Principal Amount: $ August 22, 2103 12% SECURED PROMISSORY NOTE FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) the sum of Dollars ($) (or such lesser amount as may be then outstanding) together with interest on the unpaid principal hereof from the date hereof at the

August 27, 2013 EX-10.2

EX-10.2

ThermoEnergy Corporation Loan Agreement This Agreement is made by and among ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and the individual and entities identified on Schedule I hereto (each, a “Lender”) as of the 22nd day of August 2013.

August 27, 2013 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K 1 v3536948k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-4

August 14, 2013 EX-3.(I)

EX-3.(I)

August 14, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2013 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

July 31, 2013 424B3

DATED JULY 31, 2013

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-175227 DATED JULY 31, 2013 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 40. We w

July 24, 2013 CORRESP

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10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508-854-1753 www.thermoenergy.com www.castion.com July 24, 2013 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Attention: Pamela A. Long, Assistant Director Re: Post-Effective Amendment No. 3 to Registration Statement on Form S-1 Filed July 1, 2013 File No. 333-175227 Ladies and Ge

July 24, 2013 424B3

DATED JuLY 24, 2013 63,856,250 Shares THERMOENERGY CORPORATION Common Stock

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-185487 DATED JuLY 24, 2013 63,856,250 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 63,856,250 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 48. We will not rec

July 17, 2013 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 12, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 17, 2013 EX-3.1

EX-3.1

Amended and Restated By-Laws of ThermoEnergy Corporation (As of July 12, 2013) Amended and Restated By-Laws of ThermoEnergy Corporation ARTICLE 1 - Stockholders 1.

July 12, 2013 EX-16.1

EX-16.1

July 12, 2013 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 1, 2013 EX-21.1

EX-21.1

EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware CASTion Corporation (97%) Massachusetts Unity Power Alliance, LLC (50%) Delaware

July 1, 2013 POS AM

- POS AM

As filed with the Securities and Exchange Commission on July 1, 2013 Registration No.

July 1, 2013 POS AM

- POS AM

As filed with the Securities and Exchange Commission on July 1, 2013 Registration No.

July 1, 2013 EX-24.2

EX-24.2

Exhibit 24.2 POWER OF ATTORNEY The undersigned director of ThermoEnergy Corporation hereby constitutes and appoints Gregory M. Landegger my true and lawful attorney, with full power to sign for me and in my name in my capacity as a director of ThermoEnergy Corporation, Post-Effective Amendment No. 1 to Registration Statement No. 333-185487 on Form S-1, and any and all subsequent amendments to said

May 15, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

10-Q 1 v34386410q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2013 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-461

April 24, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

April 16, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 v3414628k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46

April 5, 2013 EX-3.I

EX-3.I

v340656ex99-3i - Converted by SECPublisher 2.1.1.8, created by BCL Technologies Inc., for SEC Filing

April 5, 2013 EX-4.1

EX-4.1

THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT.

April 5, 2013 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Termination of a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 5, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

March 26, 2013 EX-21.1

Subsidiaries of the Issuer

EX-21.1 5 v337570ex21-1.htm EXHIBIT 21.1 EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware CASTion Corporation (97%) Massachusetts Unity Power Alliance, LLC (50%) Delaware

March 26, 2013 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 o TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CORPORATION

March 26, 2013 EX-10.15

PROMISSORY NOTE

Principal Amount: $ PROMISSORY NOTE FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) on demand at any time on or after December 31, 2012 (the “Maturity Date”) the sum of Dollars ($) (or such lesser amount as may be then outstanding) together with all interest thereon accrued and unpaid.

March 26, 2013 EX-10.14

ThermoEnergy Corporation Bridge Loan Agreement

ThermoEnergy Corporation Bridge Loan Agreement This Agreement is made by and among ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and the individual and entities identified on Schedule I hereto (each, an “Investor”) this 2nd day of December 2011.

March 26, 2013 EX-4.2

THIS NOTE AND THE SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS. NEITHER THIS NOTE NOR SUCH SHARES OF COMMON STOCK MAY BE SOLD, OFFERED

THIS NOTE AND THE SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS.

March 21, 2013 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

March 19, 2013 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2013 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

March 19, 2013 EX-99.1

ThermoEnergy Corporation Announces 25% Revenue Increase for 2012 With Renewed Focus on Strong Technology Platform and Operational Excellence

News Release – March 19, 2013 Investor Relations Contact Chris Camarra: 212-398-3487 ccamarra@allianceadvisors.

February 15, 2013 PRER14A

- PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Amendment No.

February 15, 2013 CORRESP

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Nixon Peabody llp 100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E.

February 15, 2013 CORRESP

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10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508-854-1753 www.thermoenergy.com www.castion.com February 15, 2013 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Re: ThermoEnergy Corporation Preliminary Proxy Statement on Schedule 14A File No. 33-46104-FW Ladies and Gentlemen: ThermoEnergy Corporation (the “Company”) is today f

February 15, 2013 DEF 14A

- FORM DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant x Filed by a Party other than the registrant ¨ Check the appropriate box: ¨ Preliminary proxy statement.

February 14, 2013 SC 13G/A

TMEN / ThermoEnergy Corp. / GUGGENHEIM CAPITAL LLC - SCHEDULE 13G HOLDINGS REPORT AMENDMENT Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 5)* ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 883906406 (CUSIP Number) December 31, 2012** (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

February 1, 2013 424B3

DATED January 31, 2013

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-185487 DATED January 31, 2013 Prospectus 63,856,250 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 63,856,250 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 48. W

January 30, 2013 CORRESP

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Nixon Peabody llp 100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E.

January 30, 2013 PRER14A

- FORM PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Amendment No.

January 28, 2013 CORRESP

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10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508-854-1753 www.thermoenergy.com www.castion.com January 28, 2013 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Re: Registration Statement on Form S-1 File No. 333-185487 Ladies and Gentlemen: Pursuant to Rule 461 under the Securities Act of 1933, as amended, the undersigned issu

January 18, 2013 S-1/A

- S-1/A

As filed with the Securities and Exchange Commission on January 18, 2013 Registration No.

January 18, 2013 CORRESP

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Nixon Peabody llp 100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E.

December 20, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

December 20, 2012 EX-10.1

ThermoEnergy Corporation Executive Employment Agreement

EX-10.1 2 v330594ex10-1.htm EXHIBIT 10.1 ThermoEnergy Corporation Executive Employment Agreement AGREEMENT, dated the 10th day of December 2012, by and between ThermoEnergy Corporation, a Delaware corporation (together with all of its subsidiaries, the “Company”) and James F. Wood (the “Executive”). WHEREAS, the Company desires to engage the services of the Executive as President and Chief Executi

December 20, 2012 CORRESP

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Nixon Peabody LLP 100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E.

December 20, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

December 20, 2012 S-1/A

- AMENDMENT TO FORM S-1

As filed with the Securities and Exchange Commission on December 20, 2012 Registration No.

December 18, 2012 PRE 14A

- PRELIMINARY PROXY STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant x Filed by a Party other than the registrant ¨ Check the appropriate box: x Preliminary proxy statement.

December 14, 2012 EX-21.1

Subsidiaries of the Issuer

EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation (97%) Massachusetts United Power Alliance LLC (50%) Delaware

December 14, 2012 S-1

Registration Statement - S-1

Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware 4955 71-0659511 (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) (I.R.S. Employer

December 6, 2012 EX-10.2

EX-10.2

Principal Amount: $ PROMISSORY NOTE FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) on demand at any time on or after April 15, 2013 (the “Maturity Date”) the sum of Dollars ($) (or such lesser amount as may be then outstanding) together with all interest thereon accrued and unpaid.

December 6, 2012 EX-10.1

ThermoEnergy Corporation Bridge Loan Agreement

EX-10.1 2 v329832ex10-1.htm EXHIBIT 10.1 ThermoEnergy Corporation Bridge Loan Agreement This Agreement is made as of the 30th day of November 2012 by and among ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and the persons and entities identified on Schedule I hereto (each, an “Investor” and, collectively, the “Investors”). Whereas, the Board of Directors of the Corporation h

December 6, 2012 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 30, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

November 14, 2012 8-K

Termination of a Material Definitive Agreement - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 13, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

November 14, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2012 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

October 11, 2012 EX-10.1

EX-10.1

Exhibit 10.1 LOAN AGREEMENT This LOAN AGREEMENT is made as of October 4, 2012, by and among (a) ThermoEnergy Corporation, a Delaware corporation (“ThermoEnergy”), (b) ThermoEnergy Power Systems, LLC, a Delaware limited liability company (“ThermoEnergy Power Systems”), (c) CASTion Corporation, a Massachusetts corporation (“CASTion”, and together with ThermoEnergy and ThermoEnergy Power Systems, the

October 11, 2012 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 4, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

October 11, 2012 EX-10.2

EX-10.2

Exhibit 10.2 NOTE $700,000.00 October 4, 2012 FOR VALUE RECEIVED, the undersigned, THERMOENERGY CORPORATION, a Delaware corporation (“ThermoEnergy”), THERMOENERGY POWER SYSTEMS, LLC, a Delaware limited liability company (“ThermoEnergy Power Systems”) and CASTION CORPORATION, a Massachusetts corporation (“CASTion”, and together with ThermoEnergy and ThermoEnergy Power Systems, the “Borrowers”), HER

October 11, 2012 EX-10.3

PLEDGE AND SECURITY AGREEMENT

Exhibit 10.3 PLEDGE AND SECURITY AGREEMENT This PLEDGE AND SECURITY AGREEMENT (this “Agreement”) is made as of October 4, 2012, by and among: (a) THERMOENERGY CORPORATION, a Delaware corporation (“ThermoEnergy”), (b) THERMOENERGY POWER SYSTEMS, LLC, a Delaware limited liability company (“ThermoEnergy Power Systems”), (c) CASTION CORPORATION, a Massachusetts corporation (“CASTion”, and together wit

September 10, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 v3233938k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 4, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33

August 15, 2012 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits - 8-K CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 9, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

August 15, 2012 8-K/A

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits - AMENDMENT NO. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A (Amendment No.

August 14, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q S QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2012 or £ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

July 17, 2012 EX-10.2

EX-10.2

Exhibit 10.2 THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT. Warrant No. W12- COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEner

July 17, 2012 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits - 8-K CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 17, 2012 EX-10.1

ThermoEnergy Company Securities Purchase Agreement

Exhibit 10.1 ThermoEnergy Company Securities Purchase Agreement This Securities Purchase Agreement (the “Agreement”) is made by and between ThermoEnergy Company, a Delaware corporation (the “Company”) and the person or entity executing the Investor’s Signature Page hereto (the “Investor”) as of the 11th day of June 2012. Whereas, the Company has offered to issue and sell to “accredited investors”

July 11, 2012 424B3

DATED JULY 11, 2012

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-175227 DATED JULY 11, 2012 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 40. We w

June 26, 2012 EX-10.2

DETAILED LICENSE CONTRACT

DETAILED LICENSE CONTRACT This Detailed License Contract (hereinafter the “Contract”) is made is made as of June 20, 2012 in Milan, Italy.

June 26, 2012 EX-10.1

AGREEMENT

AGREEMENT This Agreement (hereinafter the “Agreement”) is made as of June 20, 2012 in Milan, Italy.

June 26, 2012 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 20, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

June 18, 2012 CORRESP

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10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508-854-1753 www.thermoenergy.com www.castion.com June 18, 2012 Securities and Exchange Commission 100 F Street NE Washington, DC 20549 Attention: Rufus Decker, Accounting Branch Chief Re: ThermoEnergy Corporation Form 10-K for the Fiscal Year Ended December 31, 2011 Filed May 14, 2012 File No. 033-46104-FW L

June 5, 2012 EX-16.2

June 5, 2012

Exhibit 16.2 June 5, 2012 U.S. Securities and Exchange Commission Office of the Chief Accountant 100 F Street, N.E. Washington, D.C. 20549 Dear Sirs/Madams: We have received a copy of, and are in agreement with, the statements being made by ThermoEnergy Corporation under the heading “Change in Accountants” in Post-Effective Amendment No. 2 to its registration statement on Form S-1 (Registration No

June 5, 2012 EX-21.1

Subsidiaries of the Issuer

EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Environmental, LLC New Jersey ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation Massachusetts Unity Power Alliance, LLC Delaware

June 5, 2012 EX-16.1

EX-16.1

Exhibit 16.1 June 5, 2012 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Post-Effective Amendment No. 2 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registrati

June 5, 2012 POS AM

- POS AM

As filed with the Securities and Exchange Commission on June 5, 2012 Registration No.

May 21, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 15, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

May 21, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q S QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2012 or £ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

May 15, 2012 NT 10-Q

- NOTICE OF LATE FILING

UNITED STATES OMB APPROVAL SECURITIES AND EXCHANGE COMMISSION OMB Number: 3235-0058 Expires: June 30, 2012 Estimated average burden hours per response 2.

May 14, 2012 CORRESP

-

10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508-854-1753 www.thermoenergy.com www.castion.com May 15, 2012 Securities and Exchange Commission 100 F Street NE Washington, DC 20549 Attention: Rufus Decker, Accounting Branch Chief Re: ThermoEnergy Corporation Item 4.02 Form 8-K Filed April 13, 2012 File no. 33-46104-FW Ladies and Gentlemen: On behalf of T

May 14, 2012 EX-21.1

Subsidiaries of the Issuer

EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Environmental, LLC New Jersey ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation Massachusetts Unity Power Alliance, LLC Delaware

May 14, 2012 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2011 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CORPORATION

May 14, 2012 EX-24.1

POWER OF ATTORNEY

EXHIBIT 24.1 POWER OF ATTORNEY We, the undersigned officers and directors of ThermoEnergy Corporation., hereby severally constitute and appoint Cary G. Bullock and Teodor Klowan, Jr., and each of them singly, our true and lawful attorneys with full power to them, and each of them singly, to sign for us and in our names in the capacities indicated below, the Annual Report of ThermoEnergy Corporatio

May 10, 2012 SC 13G/A

TMEN / ThermoEnergy Corp. / SECURITY INVESTORS LLC - FORM 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* ThermoEnergy Corporation (Name of Issuer) Common (Title of Class of Securities) 883906406 (CUSIP Number) January 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

April 17, 2012 EX-99.1

ThermoEnergy Corporation Announces 94% Revenue Increase for 2011

News Release – April 17, 2012 ThermoEnergy Contact Ted Klowan: 508-854-1628 tklowan@thermoenergy.

April 17, 2012 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

April 13, 2012 8-K

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 12, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

April 2, 2012 NT 10-K/A

- AMENDED NOTIFICATION OF LATE FILING

OMB APPROVAL OMB Number: 3235-0058 Expires: June 30, 2012 Estimated average burden hours per response 2.

March 28, 2012 NT 10-K

- NOTICE OF LATE FILING

OMB APPROVAL OMB Number: 3235-0058 Expires: June 30, 2012 Estimated average burden hours per response 2.

March 14, 2012 SC 13G

TMEN / ThermoEnergy Corp. / Howard Francis - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 883906406 (CUSIP Number) January 10, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r

March 8, 2012 EX-10.1

DISSOLUTION AGREEMENT

DISSOLUTION AGREEMENT THIS DISSOLUTION AGREEMENT (the “Agreement”) is entered into effective as of the 2nd day of March 2012, by and among Babcock-Thermo Clean Combustion LLC f/k/a Babcock-Thermo Carbon Capture LLC, a Delaware limited liability company (the “Company”), Babcock Power Development, LLC, a Delaware limited liability company (“Babcock”), Babcock Power Inc.

March 8, 2012 8-K

Termination of a Material Definitive Agreement, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 2, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

February 14, 2012 SC 13G/A

TMEN / ThermoEnergy Corp. / Empire Capital Management, L.L.C. Passive Investment

FORM SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Amendment No. 6 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 883906406 (CUSIP Number) December 31, 2011 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this Schedule 13G

January 27, 2012 424B7

DATED JANUARY 27, 2012

Filed pursuant to Rule 424(b)(7) Registration Statement No. 333-175227 DATED JANUARY 27, 2012 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 41. W

January 19, 2012 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 14, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

January 12, 2012 424B7

DATED JANUARY 12, 2012

Filed pursuant to Rule 424(b)(7) Registration Statement No. 333-175227 DATED JANUARY 12, 2012 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 41. W

January 11, 2012 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2012 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

January 5, 2012 424B7

DATED JANUARY 5, 2012

Filed pursuant to Rule 424(b)(7) Registration Statement No. 333-175227 DATED JANUARY 5, 2012 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 41. We

January 4, 2012 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 30, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

January 4, 2012 EX-10.1

EX-10.1

ThermoEnergy Corporation Warrant Amendment Agreement and Notice of Exercise This Agreement is made by and between ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and (the “Investor”), and the Notice made herein is given by the Investor, this day of December 2011 (collectively, the “Agreement”).

December 29, 2011 424B3

DATED DECEMBER 29, 2011

Filed pursuant to Rule 424(b)(3) Registration Statement No. 333-175227 DATED DECEMBER 29, 2011 Prospectus 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 41.

December 28, 2011 EX-16.1

December 28, 2011

Exhibit 16.1 December 28, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Post-Effective Amendment No. 1 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such regis

December 28, 2011 POS AM

As filed with the Securities and Exchange Commission on December 28, 2011

As filed with the Securities and Exchange Commission on December 28, 2011 Registration No.

December 28, 2011 EX-16.2

December 28, 2011

Exhibit 16.2 December 28, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Post-Effective Amendment No. 1 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such regis

December 13, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 13, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

December 2, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 1, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

December 2, 2011 EX-16.1

December 1, 2011

Exhibit 16.1 December 1, 2011 U.S. Securities and Exchange Commission Office of the Chief Accountant 100 F Street, N.E. Washington, D.C. 20549 Dear Sirs/Madams: We have received a copy of, and are in agreement with, the statements being made by ThermoEnergy Corporation in Item 4.01 of its Form 8-K dated December 1, 2011, captioned “Changes in Registrant’s Certifying Accountant.” We hereby consent

November 17, 2011 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant x Filed by a Party other than the registrant o Check the appropriate box: o Preliminary proxy statement.

November 14, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2011 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

November 8, 2011 424B3

DATED NOVEMBER 7, 2011

Filed pursuant to Rule 424b)(3) Registration Statement No. 333-175227 DATED NOVEMBER 7, 2011 PROSPECTUS 54,166,684 Shares THERMOENERGY CORPORATION Common Stock This prospectus relates to the resale of up to 54,166,684 shares of Common Stock, par value $0.001 per share, of ThermoEnergy Corporation that may be sold from time to time by the selling stockholders named in this prospectus on page 41. We

November 3, 2011 CORRESP

-

THERMOENERGY 10 New Bond Street Worcester, Massachusetts 01606 USA Tel: 508.854.1628 800.628.7528 Fax: 508.854.1753 www.thermoenergy.com November 3, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Re: ThermoEnergy Corporation Registration Statement on Form S-1 File No. 333-175227 Ladies and Gentlemen: Pursuant to Rule 461 under the Securities Act of 1933, as amended

November 2, 2011 S-1/A

- FORM S-1/A

As filed with the Securities and Exchange Commission on November 2, 2011 Registration No.

November 2, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 5 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 5 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

November 2, 2011 EX-16

November 2, 2011

Exhibit 16 November 2, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Amendment No. 5 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registration statement;

November 2, 2011 EX-16

November 2, 2011

Exhibit 16 November 2, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation in Item 9 ( “Changes in and Disagreements with Accountants on Accounting and Financial Disclosure”) in Amendment No. 5 to its Annual Report on Form 10-K/A for the year ended December 31, 2010. We agree with the sta

November 2, 2011 CORRESP

-

NIXON PEABODY LLP 100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E.

October 28, 2011 EX-10.2

FIRST AMENDMENT TO LEASE

FIRST AMENDMENT TO LEASE This Amendment to Lease (this “Amendment”) is made as of the 25th day of October, 2011 (the “Effective Date”), by and between LIBERTY MA PORTFOLIO FEE LLC, with an address c/o Liberty Properties, One Liberty Square, Boston, Massachusetts 02109 (“Landlord”) and THERMOENERGY CORPORATION, a Delaware corporation, with an address of 10 New Bond Street, Worcester, MA 01606 (“Tenant”).

October 28, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K. CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K. CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 25, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commiss

October 28, 2011 EX-10.1

INDEX TO LEASE 10 NEW BOND STREET LLC THERMOENERGY CORPORATION

INDEX TO LEASE FROM 10 NEW BOND STREET LLC TO THERMOENERGY CORPORATION ARTICLE I BASIC LEASE PROVISIONS 1 1.

October 17, 2011 S-1/A

- AMENDMENT NO. 4 TO FORM S-1

As filed with the Securities and Exchange Commission on October 14, 2011 Registration No.

October 17, 2011 EX-16

EX-16

Exhibit 16 October 14, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Amendment No. 3 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registration statement;

October 17, 2011 CORRESP

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100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E. Kelly Direct Dial: (617) 345-1195 / Direct Fax: (866) 743-4899 E-Mail: [email protected] October 14, 2011 Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Pamela Long, Assistant Director Re: ThermoEnergy Corporation Amendment No. 2 to Registration Statement on Form S-1 Filed Septem

October 14, 2011 EX-16

October 14, 2011

Exhibit 16 October 14, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation in Item 9 ( “Changes in and Disagreements with Accountants on Accounting and Financial Disclosure”) in Amendment No. 4 to its Annual Report on Form 10-K/A for the year ended December 31, 2010. We agree with the sta

October 14, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 4 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 4 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

October 14, 2011 EX-16

October 14, 2011

Exhibit 16 October 14, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Amendment No. 3 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registration statement;

October 14, 2011 S-1/A

- S-1/A

S-1/A 1 v237253s1a.htm S-1/A As filed with the Securities and Exchange Commission on October 14, 2011 Registration No. 333-175227 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 To FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware 4955 71-0659511 (State or

October 14, 2011 CORRESP

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100 Summer Street Boston, Massachusetts 02110-2131 (617) 345-1000 William E. Kelly Direct Dial: (617) 345-1195 / Direct Fax: (866) 743-4899 E-Mail: [email protected] October 14, 2011 Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Pamela Long, Assistant Director Re: ThermoEnergy Corporation Amendment No. 2 to Registration Statement on Form S-1 Filed Septem

September 26, 2011 S-1/A

- FORM S-1/A

As filed with the Securities and Exchange Commission on September 26, 2011 Registration No.

September 26, 2011 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A AMENDMENT NO. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A AMENDMENT NO.

September 26, 2011 EX-16

EX-16

Exhibit 16 September 26, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Amendment No. 2 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registration statemen

September 26, 2011 EX-16

September 26, 2011

Exhibit 16 September 26, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation in Item 9 ( “Changes in and Disagreements with Accountants on Accounting and Financial Disclosure”) in Amendment No. 3 to its Annual Report on Form 10-K/A for the year ended December 31, 2010. We agree with the s

September 26, 2011 CORRESP

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Nixon Peabody LLP 100 Summer Street Boston, Massachusetts 02110-2131 William E. Kelly Direct Dial: (617) 345-1195 / Direct Fax: (866) 743-4899 E-mail: [email protected] September 26, 2011 Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Pamela Long, Assistant Director Re: ThermoEnergy Corporation Amendment No. 1 to Registration Statement on Form S-1 Filed A

September 26, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 3 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 3 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

August 18, 2011 EX-16

August 18, 2011

Exhibit 16 August 18, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under the heading “Change in Accountants” in Amendment No. 1 to its registration statement on Form S-1 (Registration No. 333-175227). We agree with the statements concerning our Firm in such registration statement;

August 18, 2011 CORRESP

-

Nixon Peabody LLP 100 Summer Street Boston, Massachusetts 02110-2131 William E. Kelly Direct Dial: (617) 345-1195 / Direct Fax: (866) 743-4899 E-mail: [email protected] August 18, 2011 Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Pamela Long, Assistant Director Re: ThermoEnergy Corporation Registration Statement on Form S-1 Filed June 29, 2011 File No.

August 18, 2011 S-1/A

As filed with the Securities and Exchange Commission on August 18, 2011

As filed with the Securities and Exchange Commission on August 18, 2011 Registration No.

August 18, 2011 EX-21.1

Subsidiaries of the Registrant

EXHIBIT 21.1 Subsidiaries of the Registrant Name of Subsidiary State of Organization ThermoEnergy Environmental, LLC New Jersey ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Clean Combustion LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation (97.3%) Massachusetts

August 11, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2011 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

August 11, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 2 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 2 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

August 11, 2011 EX-16.1

August 11, 2011

Exhibit 16 August 11, 2011 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation in Item 9 ( “Changes in and Disagreements with Accountants on Accounting and Financial Disclosure”) in Amendment No. 2 to its Annual Report on Form 10-K/A for the year ended December 31, 2010. We agree with the stat

August 11, 2011 EX-99.1

Pro forma

The following is a pro forma balance sheet for the Company as of June 30, 2011, assuming that the transactions reported in this Current Report on Form 8-K had taken place on June 30, 2011: Actual June 30, 2011 Pro forma Adjustments Pro forma ASSETS Current Assets: Cash $ 2,210 $ (1,568 ) 1 $ 2,243 1,601 3 Accounts receivable, net 710 710 Inventories, net 136 136 Other current assets 632 632 Total

August 11, 2011 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No.

August 11, 2011 EX-3.(II)

Certificate of Amendment to the Certificate of incorporation ThermoEnergy Corporation

Certificate of Amendment to the Certificate of incorporation of ThermoEnergy Corporation ThermoEnergy Corporation, a corporation organized and existing under and by virtue of the Delaware General Corporation Law, does hereby certify as follows: The Board of Directors of the Corporation has duly adopted, pursuant to Section 242 of the Delaware General Corporation Law, a resolution setting forth amendments to the Certificate of Incorporation of the Corporation and declaring said amendments to be advisable.

August 11, 2011 EX-3.(I)

Certificate of Amendment to the Certificate of Designation, Preferences and Rights ThermoEnergy Corporation

Certificate of Amendment to the Certificate of Designation, Preferences and Rights of ThermoEnergy Corporation ThermoEnergy Corporation, a corporation organized and existing under and by virtue of the Delaware General Corporation Law, does hereby certify as follows: The Board of Directors of the Corporation has duly adopted, pursuant to Section 242 of the Delaware General Corporation Law, a resolu

August 11, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

August 1, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 26, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 22, 2011 PRER14C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 to SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 to SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934 Check the appropriate box: x Preliminary Information Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14c-5(d)(2)) ¨ Definitive Information Statement THERMOENERGY CORP

July 22, 2011 DEF 14C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934 Check the appropriate box: o Preliminary Information Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14c-5(d)(2)) x Definitive Information Statement THERMOENERGY CORPORATION (Name of Re

July 20, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 12, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 11, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2011

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 31, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

July 11, 2011 EX-3.(I)

THERMOENERGY CORPORATION CERTIFICATE OF INCREASE OF SERIES B CONVERTIBLE PREFERRED STOCK Pursuant to Section 151(g) of the General Corporation Law

THERMOENERGY CORPORATION CERTIFICATE OF INCREASE OF SERIES B CONVERTIBLE PREFERRED STOCK Pursuant to Section 151(g) of the General Corporation Law ThermoEnergy Corporation, a corporation organized and existing under and by virtue of the Delaware General Corporation Law, does hereby certify as follows: In accordance with the provisions of Section 151(g) of the Delaware General Corporation Law, the Board of Directors of the corporation has duly adopted the following resolution pursuant to authority expressly vested in the corporation’s Board of Directors by the Certificate of Incorporation: Resolved: That the number of shares of the Preferred Stock, par value $0.

July 11, 2011 PRE 14C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934 Check the appropriate box: x Preliminary Information Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14c-5(d)(2)) ¨ Definitive Information Statement THERMOENERGY CORPORATION (Name of Re

June 29, 2011 S-1

As filed with the Securities and Exchange Commission on June 29, 2011

As filed with the Securities and Exchange Commission on June 29, 2011 Registration No.

June 27, 2011 EX-10.1

ThermoEnergy Corporation Bridge Loan and Warrant Amendment Agreement; Consent, Waiver and Notice of Exercise

Exhibit 10.1 ThermoEnergy Corporation Bridge Loan and Warrant Amendment Agreement; Consent, Waiver and Notice of Exercise This Agreement is made by and among ThermoEnergy Corporation, a Delaware corporation (the “Corporation”) and the undersigned holders of the shares of the Corporation’s Series B Convertible Preferred Stock (the “Series B Stock”) and/or the Common Stock Purchase Warrants issued b

June 27, 2011 EX-10.2

ThermoEnergy Corporation Promissory Note

Exhibit 10.2 ThermoEnergy Corporation Promissory Note Principal Amount: $ FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) on demand at any time on or after February 29, 2012 (the “Maturity Date”) the sum of Dollars ($) (or such lesser amount as may be then outstanding). Until the Maturity Date, this Note sh

June 27, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 17, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

May 19, 2011 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION

FORM SC 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment No. THERMOENERGY CORP. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 883906406 (CUSIP Number) May 5, 2011 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed: ¨ Rule 13

May 11, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2011 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact name of registrant as specified in its charter) Delaware 71-0659511 (State or other jurisdiction of (I.

May 2, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

March 31, 2011 EX-21.1

Subsidiaries of the Issuer

EXHIBIT 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Environmental, LLC New Jersey ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation Massachusetts

March 31, 2011 EX-24.1

POWER OF ATTORNEY

EXHIBIT 24.1 POWER OF ATTORNEY We, the undersigned officers and directors of ThermoEnergy Corporation., hereby severally constitute and appoint Cary G. Bullock and Teodor Klowan, Jr., and each of them singly, our true and lawful attorneys with full power to them, and each of them singly, to sign for us and in our names in the capacities indicated below, the Annual Report of ThermoEnergy Corporatio

March 31, 2011 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CORPORATION (Exact N

March 30, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 25, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

March 3, 2011 EX-10.3

Warrant No. __ COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnergy Corporation

THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT.

March 3, 2011 EX-10.2

Amended and Restated as of February 25, 2011

Amended and Restated as of February 25, 2011 Principal Amount: $ Original Issue Date: March 1, 2010 SECURED CONVERTIBLE PROMISSORY NOTE FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) on February 29, 2012 (the “Maturity Date”) the sum of Dollars ($) (or such lesser amount as may be then outstanding).

March 3, 2011 EX-10.1

Note Extension and Amendment Agreement

Note Extension and Amendment Agreement Agreement dated as of the 25th day of February 2011 (this “Agreement”) by and among ThermoEnergy Corporation, a Delaware corporation (“ThermoEnergy”) and the individual and entities named on Schedule I hereto (collectively, the “Lenders”).

March 3, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 25, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

February 15, 2011 SC 13D

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 THERMOENERGY CORP. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) (CUSIP Number) J

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 THERMOENERGY CORP. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 883906406 (CUSIP Number) J. Markham Penrod, IACCPSM Chief Compliance Officer Empire Capital Management, LLC One Gorham Island, Suite 201 Westport, CT 06880 USA (203)

January 31, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 24, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

January 14, 2011 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 7, 2011 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

January 14, 2011 EX-4.1

Warrant No. W11-__ COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnergy Corporation

Exhibit 4.1 THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT. Warrant No. W11- COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnerg

January 14, 2011 EX-10.1

Note Amendment and Forbearance Agreement

Exhibit 10.1 Note Amendment and Forbearance Agreement Agreement dated as of the 4th day of January 2011 (this “Agreement”) by and between ThermoEnergy Corporation, a Delaware corporation (“ThermoEnergy”) and . Whereas, pursuant to a certain Agreement for the Purchase and Sale of Securities dated as of July 2, 2007 (the “2007 Agreement”), ThermoEnergy issued to a Convertible Promissory Note in the

January 14, 2011 EX-10.2

CONVERTIBLE PROMISSORY NOTE DUE FEBRUARY 29, 2012

Exhibit 10.2 THIS NOTE, THE SHARES OF SERIES B CONVERTIBLE PREFERRED STOCK ISSUABLE UPON CONVERSION OF THIS NOTE AND THE SHARES OF COMMON STOCK THAT ARE ISSUABLE UPON CONVERSION OF SUCH SHARES OF SERIES B CONVERTIBLE PREFERRED STOCK HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS. NEITHER THIS NOTE NOR SUCH SHARES OF COMMON STOCK MAY BE SOLD, OFF

November 23, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 18, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

November 23, 2010 EX-10.1

TABLE OF CONTENTS

ThermoEnergy Corporation 2008 Incentive Stock Plan, as amended TABLE OF CONTENTS Page Article 1.

November 15, 2010 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2010 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from - to - Commission File Number: 33-46104-FW THERMOENER

October 20, 2010 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant x Filed by a Party other than the registrant ¨ Check the appropriate box: ¨ Preliminary proxy statement.

September 10, 2010 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* ThermoEnergy Corporation (Name of Issuer) Common (Title of Class of Securities) 883906406 (CUSIP Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* ThermoEnergy Corporation (Name of Issuer) Common (Title of Class of Securities) 883906406 (CUSIP Number) August 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

August 16, 2010 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2010 o TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 71-0659511 (State or Other Jurisdiction of (I.

August 16, 2010 SC 13G/A

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 4 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SEC

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 4 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934 THERMOENERGY CORP (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 883906406 (CUSIP Number)

August 13, 2010 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No.

August 13, 2010 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 8) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities)

CUSIP No. 883906406 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 8) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities) 883906406 (CUSIP Number) Joseph P. Bartlett The Law Offices of Joseph P. Bartlett, A Professional Corporation 1900 Avenue of the

August 9, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 4, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-0659511 (Commission File Number) (IRS Employer Identification No.

August 9, 2010 EX-4.1

Warrant No. W10-__ COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnergy Corporation

THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT.

August 9, 2010 EX-3.(I)

EX-3.(I)

August 9, 2010 EX-10.1

ThermoEnergy Corporation Securities Purchase Agreement

ThermoEnergy Corporation Securities Purchase Agreement This Securities Purchase Agreement (this “Agreement”) is dated as of August 9, 2010, by and among ThermoEnergy Corporation, a Delaware corporation (the “Company”), and the investors identified on the signature pages hereto (each, an “Investor” and collectively, the “Investors”).

July 28, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 8, 2010

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 8, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

July 2, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 30, 2010

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 30, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

July 2, 2010 EX-10.1

ThermoEnergy Corporation Amendment No. 1 Bridge Loan Agreement

ThermoEnergy Corporation Amendment No. 1 to Bridge Loan Agreement Reference is made to that certain Bridge Loan Agreement (the “Agreement”) effective as of March 1, 2010 by and among ThermoEnergy Corporation, a Delaware corporation having its principal place of business in Little Rock, Arkansas (the “Borrower”) and the individual and entities named on Schedule I hereto (collectively, the “Lenders”

June 30, 2010 EX-10.1

THE CITY OF NEW YORK DEPARTMENT OF ENVIRONMENTAL PROTECTION CONTRACT NO. PO-98B Registration No. CTC 826 20101417884 For the Services of: ThermoEnergy Corporation 124 West Capitol Street, Suite 880 Little Rock, Arkansas 72201 Ammonia Removal Process

THE CITY OF NEW YORK DEPARTMENT OF ENVIRONMENTAL PROTECTION CONTRACT NO. PO-98B Registration No. CTC 826 20101417884 For the Services of: ThermoEnergy Corporation 124 West Capitol Street, Suite 880 Little Rock, Arkansas 72201 Ammonia Removal Process System City of New York Department of Environmental Protection TABLE OF CONTENTS ARTICLE DESCRIPTION PAGE WHEREAS CLAUSES 1 ARTICLE I: SPECIFIC PROVIS

June 30, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 24, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

May 12, 2010 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q x QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2010 o TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-46104-FW THERMOENERGY CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 71-0659511 (State or Other Jurisdiction of (IRS Employer Identification No.

April 30, 2010 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendement No. 1) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 o TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendement No. 1) x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY

April 15, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 12, 2010

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 12, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

April 15, 2010 EX-16

April 15, 2010

Exhibit 16 April 15, 2010 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by ThermoEnergy Corporation under Item 4.01 of its Current Report on Form 8-K dated April 15, 2010. We agree with the statements concerning our Firm in such Current Report; we are not in a position to agree or disagree with other statements of

March 31, 2010 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 o TRANSITION REPORT PURSUANT TO SECTION 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CORPORATION (Exact N

March 31, 2010 EX-24.1

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY We, the undersigned officers and directors of ThermoEnergy Corporation., hereby severally constitute and appoint Cary G. Bullock and Teodor Klowan, Jr., and each of them singly, our true and lawful attorneys with full power to them, and each of them singly, to sign for us and in our names in the capacities indicated below, the Annual Report of ThermoEnergy Corporatio

March 31, 2010 EX-21.1

Subsidiaries of the Issuer

Exhibit 21.1 Subsidiaries of the Issuer Name of Subsidiary State of Organization ThermoEnergy Environmental, LLC New Jersey ThermoEnergy Power Systems, LLC (85%) Delaware Babcock-Thermo Carbon Capture, LLC (42.5%) Delaware Cast Acquisition Corp. Delaware CASTion Corporation Massachusetts

March 22, 2010 SC 13G/A

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 4 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SEC

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 4 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934 THERMOENERGY CORP (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 883906406 (CUSIP Number)

March 18, 2010 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 7) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities)

CUSIP No. 883906406 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 7) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities) 883906406 (CUSIP Number) Joseph P. Bartlett The Law Offices of Joseph P. Bartlett, A Professional Corporation 1900 Avenue of the

March 16, 2010 EX-10.1

ThermoEnergy Corporation Bridge Loan Agreement

ThermoEnergy Corporation Bridge Loan Agreement This Bridge Loan Agreement (this “Agreement”) made this 10th day of March 2010 but effective as of March 1, 2010 by and among ThermoEnergy Corporation, a Delaware corporation having its principal place of business in Little Rock, Arkansas (the “Borrower”) and the individual and entities named on Schedule I hereto (collectively, the “Lenders”).

March 16, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 10, 2010

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 10, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

March 16, 2010 EX-10.2

3% SECURED CONVERTIBLE PROMISSORY NOTE

Principal Amount: $ Issue Date: March 1, 2010 3% SECURED CONVERTIBLE PROMISSORY NOTE FOR VALUE RECEIVED, ThermoEnergy Corporation, a Delaware corporation (the “Borrower”), hereby promise to pay to the order of (the “Holder”) on February 28, 2011 (the “Maturity Date”) the sum of Dollars ($) (or such lesser amount as may be advanced by the Holder to the Borrower as Draws or Advances (as such terms are defined in the Bridge Loan Agreement hereinafter described).

March 16, 2010 EX-10.3

SECURITY AGREEMENT

SECURITY AGREEMENT THIS SECURITY AGREEMENT (this “Agreement”) is dated as of March 1, 2010, and is entered into by and among ThermoEnergy Corporation, a Delaware corporation having its principal place of business in Little Rock, Arkansas (the “Borrower”) and the persons and entities named on Schedule I hereto (collectively, the “Secured Parties”) and The Quercus Trust, for itself and as the agent for and for the benefit of the other Secured Parties (the “Agent”).

March 10, 2010 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 6) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities)

CUSIP No. 883906406 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Amendment No. 6) Under the Securities Exchange Act of 1934 ThermoEnergy Corporation (Name of Issuer) Common Stock, par value $0.001 (Title of Class of Securities) 883906406 (CUSIP Number) Joseph P. Bartlett The Law Offices of Joseph P. Bartlett, A Professional Corporation 1900 Avenue of the

March 9, 2010 EX-10.1

ThermoEnergy Corporation Executive Employment Agreement

ThermoEnergy Corporation Executive Employment Agreement AGREEMENT, effective March 1, 2010 (the “Effective Date”), by and between ThermoEnergy Corporation, a Delaware corporation (together with all of its subsidiaries, the “Company”) and Dennis C.

March 9, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 3, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

February 16, 2010 SC 13G/A

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 3 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SEC

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No. 3 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934 THERMOENERGY CORP (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 883906406 (CUSIP Number)

February 12, 2010 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* ThermoEnergy Corporation (Name of Issuer) Common (Title of Class of Securities) 883906406 (CUSIP Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* ThermoEnergy Corporation (Name of Issuer) Common (Title of Class of Securities) 883906406 (CUSIP Number) December 31, 2009 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

February 11, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 5, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

February 2, 2010 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 27, 2010 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

February 2, 2010 EX-10.1

ThermoEnergy Corporation Executive Employment Agreement

ThermoEnergy Corporation Executive Employment Agreement AGREEMENT, dated the 27th day of January 2010, by and between ThermoEnergy Corporation, a Delaware corporation (together with all of its subsidiaries, the “Company”) and Cary G.

December 29, 2009 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 28, 2009 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

December 23, 2009 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No. 1 to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No.

December 23, 2009 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 x ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2008 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33−46104−FW THERMOENERGY CO

December 23, 2009 CORRESP

Nixon Peabody LLP 100 Summer Street Boston, Massachusetts 02110-2131 William E. Kelly Direct Dial: (617) 345-1195 Direct Fax: (866) 743-4899 December 22, 2009

Nixon Peabody LLP 100 Summer Street Boston, Massachusetts 02110-2131 William E. Kelly Direct Dial: (617) 345-1195 Direct Fax: (866) 743-4899 December 22, 2009 Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Rufus Decker, Accounting Branch Chief Re: ThermoEnergy Corporation Form 10-K for the year ended December 31, 2008 Forms 10-Q for the periods ended March 31,

December 23, 2009 CORRESP

ThermoEnergy Corporation December 22, 2009

ThermoEnergy Corporation December 22, 2009 Securities and Exchange Commission 100 F Street, N.

December 23, 2009 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No. 1 to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No.

December 23, 2009 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No. 1 to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q/A Amendment No.

December 17, 2009 EX-3.(I)

EX-3.(I)

December 17, 2009 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 16, 2009 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

December 3, 2009 SC 13G/A

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No 2 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SECU

SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Amendment No 2 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934 THERMOENERGY CORPORATION (Name of Issuer) Common Stock, $0.001 par value (Title of Class of Securities) 883906406 (CUSIP N

November 24, 2009 EX-3.(I)

EX-3.(I)

November 24, 2009 EX-10.1

ThermoEnergy Corporation Securities Purchase Agreement

Exhibit 10.1 ThermoEnergy Corporation Securities Purchase Agreement This Securities Purchase Agreement (this “Agreement”) is dated as of November 19, 2009, by and between ThermoEnergy Corporation, a Delaware corporation (the “Company”), and the investors listed on Schedule A, which is attached hereto and incorporated herein by this reference (collectively referred to herein as the “Investors”). WH

November 24, 2009 EX-3.(II)

By-Laws ThermoEnergy Corporation (as amended, November 18, 2009) ThermoEnergy Corporation ARTICLE 1 - Stockholders

By-Laws of ThermoEnergy Corporation (as amended, November 18, 2009) By-Laws of ThermoEnergy Corporation ARTICLE 1 - Stockholders 1.

November 24, 2009 EX-4.1

Warrant No. W09-__ COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnergy Corporation

Exhibit 4.1 THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT, THE RULES AND REGULATIONS THEREUNDER OR THE PROVISIONS OF THIS COMMON STOCK PURCHASE WARRANT. Warrant No. W09- COMMON STOCK PURCHASE WARRANT To Purchase Common Stock of ThermoEnerg

November 24, 2009 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 18, 2009 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

November 24, 2009 EX-10.3

THERMOENERGY CORPORATION VOTING AGREEMENT

Exhibit 10.3 THERMOENERGY CORPORATION VOTING AGREEMENT This Voting Agreement (the “Agreement”) is made and entered into as of this 19th day of November, 2009, by and among ThermoEnergy Corporation, a Delaware corporation (the “Company”), The Quercus Trust (“Quercus”), Empire Capital Partners, LP and its affiliates (“Empire”), Focus Fund, L.P. (“Focus”) and Robert S. Trump (“Trump” and with Quercus

November 24, 2009 EX-10.2

MUTUAL RELEASE

Exhibit 10.2 MUTUAL RELEASE This Mutual Release is made as of November 19, 2009, by and between ([“Investor”]) on the one hand, and ThermoEnergy Corporation, a Delaware corporation (“TMEN”), on the other hand. In consideration of the promises, releases, and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows: 1. Except for conti

November 23, 2009 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant x Filed by a Party other than the registrant ¨ Check the appropriate box: o Preliminary proxy statement.

November 23, 2009 DEFR14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Amendment No. 1 (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Ac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Amendment No.

November 18, 2009 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 16, 2009 ThermoEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 33-46104-FW 71-00659511 (Commission File Number) (IRS Employer Identification No.

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