CPN Calpine Corp.

SAN JOSE, Calif., Oct. 5 /PRNewswire-FirstCall/ -- Calpine Corporation (NYSE:CPN) plans to announce its financial and operating results for the quarter ended September 30, 2005 on Thursday, November 3, 2005, before the market opens. The company has scheduled a conference call to discuss the results at 8:30 a.m. Pacific Standard Time on that day. Interested parties may access the teleconference via a web cast on Calpine's Investor Relations page, http://www.calpine.com/, or by dialing 888-603-6685 (1-706-634-1265 for international callers) at least five minutes before the start of the call. The call will be open to the public and media in a listen-only mode by telephone and web broadcast. A replay and transcript of the conference call will be available for 30 days on Calpine's Investor Relations page at http://www.calpine.com/. A major power company, Calpine Corporation supplies customers and communities with electricity from clean, efficient, natural gas-fired and geothermal power plants. Calpine owns, leases and operates integrated systems of plants in 21 U.S. states, three Canadian provinces and is building a plant in Mexico. Its customized products and services include wholesale and retail electricity, gas turbine components and services, energy management, and a wide range of power plant engineering, construction and maintenance, and operational services. Calpine was founded in 1984. It is included in the S&P 500 Index and is publicly traded on the New York Stock Exchange under the symbol CPN. For more information, visit http://www.calpine.com/ . DATASOURCE: Calpine Corporation CONTACT: media relations, Katherine Potter, +1-408-792-1168, or , or investor relations, Karen Bunton, +1-408-792-1121, or , both of Calpine Web site: http://www.calpine.com/

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