8-K 1 o70701.htm

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): July 12, 2007

CALPINE CORPORATION

(Exact name of registrant as specified in its charter)

Delaware

1-12079

77-0212977

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

50 West San Fernando Street, San Jose, California 95113

717 Texas Avenue, Houston, Texas 77002

(Addresses of principal executive offices and zip codes)

Registrant’s telephone number, including area code: (408) 995-5115

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:

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

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

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

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

ITEM 7.01 — REGULATION FD DISCLOSURE

On July 12, 2007, Calpine Corporation issued the press release attached as Exhibit 99.1 hereto.

ITEM 9.01 — FINANCIAL STATEMENTS AND EXHIBITS

(d)

Exhibits

99.1 Calpine Corporation Press Release Dated July 12, 2007.

SIGNATURES

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.

CALPINE CORPORATION

	By:	/s/ Charles B. Clark, Jr.
		Charles B. Clark, Jr.
		Senior Vice President and Chief Accounting Officer

Date: July 12, 2007

EXHIBIT INDEX

Exhibit		Description

99.1		Calpine Corporation Press Release Dated July 12, 2007.