SAN JOSE, CA - Peter Cartwright, chairman, CEO and president of Calpine Corporation [NYSE:CPN], will be honored at a dinner celebrating New York's Clean Air Champions, sponsored by New York League of Conservation Voters, on Thursday, May 20. Cartwright, a 50-year veteran and industry pioneer, will be praised along with Eliot Spitzer, New York's state attorney general. The keynote speaker will be Michael R. Bloomberg, mayor of New York.

The New York League of Conservation Voters, the non-profit, nonpartisan political arm of New York's environmental community, seeks to make environmental protection a priority with New York's elected officials, political candidates, businesses and voters by mobilizing New Yorkers as a political force on behalf of the environment.

WHEN
Thursday, May 20, 2004
6:30 p.m., cocktails
7:30 p.m., dinner

WHERE
The Lighthouse
Pier 61, Chelsea Piers
23rd Street and the Hudson River
New York City

Black Tie

NOTE TO EDITORS: High resolution digital photo of Cartwright available upon request.

Calpine Corporation

Calpine Corporation

Calpine Corporation is helping meet the needs of an economy that demands more and cleaner sources of electricity. Founded in 1984, Calpine is a major U.S. power company, capable of delivering nearly 25,000 megawatts of clean, cost-effective, reliable and fuel-efficient electricity to customers and communities in 18 states in the United States. The company owns, leases and operates low-carbon, natural gas-fired and renewable geothermal power plants. Using advanced technologies, Calpine generates electricity in a reliable and environmentally responsible manner for the customers and communities it serves. Please visit http://www.calpine.com for more information.

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