Calpine Corporation is a Fortune 500 power company founded in 1984 with headquarters in Houston, Texas. The company’s stock was traded on the New York Stock Exchange under the symbol CPN until it was delisted on December 5, 2005 due to low share price. On 31 January 2008, Calpine emerged from bankruptcy and now trades on the NYSE under the ticker symbol “CPN.”

The company began in response to the 1973 oil crisis and the 1979 energy crisis, much legislation was passed that made domestic energy production an attractive enterprise. In 1984, Peter Cartwright and four of his co-workers, the Guy F. Atkinson Construction Company of South San Francisco, and the Electrowatt corporation struck an investment arrangement and Calpine was born with initial capital of US$1 million. The name “Calpine” is derived from the company’s California location and alpine, a reference to the Zürich home base of Electrowatt.

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