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): May 10, 2005 CALPINE CORPORATION (Exact name of registrant as specified in its charter) Delaware (State of Other Jurisdiction of Incorporation) Commission file number: 001-12079 I.R.S. Employer Identification No. 77-0212977 50 West San Fernando Street San Jose, California 95113 Telephone: (408) 995-5115 (Address of principal executive offices and telephone number) 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: [ ] 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 May 10, 2005, the Registrant issued the press release attached hereto as Exhibit 99.1. ITEM 9.01 -- FINANCIAL STATEMENTS AND EXHIBITS (a) Financial Statements of Businesses Acquired. Not Applicable (b) Pro Forma Financial Information. Not Applicable (c) Exhibits. 99.1. Press release, dated May 10, 2005. 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, Controller and Chief Accounting Officer Date: May 16, 2005 EXHIBIT 99.1. NEWS RELEASE CONTACTS: (408) 995-5115 Media Relations: Katherine Potter, Ext. 1168 Investor Relations: Karen Bunton, Ext. 1121 Calpine Commences $155 Million Preferred Shares Offering and $100 Million Senior Term Loan Refinancing for its Metcalf Energy Center (SAN JOSE, Calif.) /PR Newswire - First Call/ May 10, 2005 - Calpine Corporation's [NYSE:CPN] indirect subsidiary, Metcalf Energy Center, LLC (Metcalf LLC), intends to commence a $155 million offering of 5.5-Year Redeemable Preferred Shares. Concurrent with the issuance of the Preferred Shares, Metcalf LLC will refinance, through a five-year, $100 Million Senior Term Loan, an existing $100 million non-recourse construction credit facility. Metcalf LLC owns Calpine's 602-megawatt Metcalf Energy Center in San Jose, Calif. The proceeds from the offering of the Redeemable Preferred Shares will ultimately be used as permitted by Calpine's existing bond indentures. Proceeds from the offering of the Senior Term Loan will be used to refinance all outstanding indebtedness under the existing construction credit facility, to complete construction of the Metcalf power plant, to pay fees and expenses related to the transaction, and as permitted by Calpine's existing bond indentures. The Redeemable Preferred Shares have not been registered under the Securities Act of 1933, and may not be offered in the United States absent registration or an applicable exemption from registration requirements. The Redeemable Preferred Shares will be offered in a private placement in the United States under Regulation D under the Securities Act of 1933 and outside of the United States pursuant to Regulation S under the Securities Act of 1933. This press release shall not constitute an offer to sell or the solicitation of an offer to buy. Securities laws applicable to private placements limit the extent of information that can be provided at this time.