8-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 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 5, 2008

TREMISIS ENERGY ACQUISITION CORPORATION II

(Exact Name of Registrant as Specified in Charter)

Delaware	001-33814	26-0971890
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

11622 Monica Street Houston, Texas	77024
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s telephone number, including area code:(917) 892-1442

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events

On March 5, 2008, Tremisis Energy Acquisition Corporation II (the “Company”) announced that holders of its units can now separately trade the common stock and warrants included in such units. The common stock and warrants will be listed on the American Stock Exchange under the symbols TGY and TGY.WS, respectively. Units not separated will continue to trade on the American Stock Exchange under the symbol TGY.U.

Item 9.01. Financial Statements and Exhibits

(c) Exhibits:

Exhibit 99.1 Press release dated March 5, 2008

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: March 5, 2008		TREMISIS ENERGY ACQUISITION CORPORATION II
	By:	/s/ Lawrence S. Coben
		Lawrence S. Coben
		Chief Executive Officer

EX-99.1

Contact:

Lawrence S. Coben

Chairman of the Board and Chief Executive Officer

Tremisis Energy Acquisition Corporation II

(212) 397-1464

FOR IMMEDIATE RELEASE

TREMISIS ENERGY ACQUISITION CORPORATION II

SECURITIES TO COMMENCE SEPARATE TRADING

Houston, Texas, March 5, 2008 - Tremisis Energy Acquisition Corporation II (AMEX: TGY.U) announced today that separate trading of the common stock and warrants underlying the units issued in the Company’s initial public offering, which took place in December 2008, has commenced. The common stock and warrants will be listed on the American Stock Exchange under the symbols TGY and TGY.WS, respectively. Units not separated will continue to trade on the American Stock Exchange under the symbol TGY.U.

Tremisis Energy Acquisition Corporation II is a newly formed blank check company organized for the purpose of effecting a merger, capital stock exchange, asset acquisition or other similar business combination with an operating business. The Company’s efforts in identifying a prospective target business will not be limited to a particular industry, although we intend to focus our efforts on seeking a business combination with an operating company in either the energy or the environmental industry and their related infrastructures.

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