Electricity giant Constellation Energy closed its deal to buy Calpine late on Wednesday, amassing the largest portfolio of ...

Constellation Energy has completed its acquisition of Calpine, creating a massive U.S. electricity producer at a time of ...

Constellation has completed its acquisition of Calpine Corporation from Energy Capital Partners, creating the nation’s ...

When the cash-and-stock deal was announced in January 2025, it was valued at $26.6 billion. At the time, the transaction was ...

NEW YORK – The New York Stock Exchange on Monday said it would delist Calpine Corp., driving one of the country's biggest power producers to the over-the-counter market amid looming fears of ...

Winter storm warnings have been issued to four states across the U.S., with the National Weather Service (NWS) forecasting up ...

SAN FRANCISCO – Moody's Investor Service lowered Calpine Corp.'s credit rating to junk status Friday in the latest blow to the rapidly expanding power generator's standing on Wall Street. The credit ...

[caption id="attachment_20572" align="alignright" width="216" caption="One of Calpine's The Geysers power plants in the Mayacamas Mountians north of Santa Rosa ...

The outlook dimmed Friday for Calpine Corp. as a judge ordered the nation’s largest independent power producer to pay $313 million by Jan. 22 -- a blow that could help push the San Jose company into ...

NEW YORK (AP) -- Independent power producer Calpine said Friday will sell six power plants in the Southeast to LS Power for $1.57 billion. LS Power is buying the Oneta Energy Center in Coweta, Okla.; ...

Struggling power generator Calpine Corp. filed for Chapter 11 bankruptcy protection late Tuesday as it grapples with more than $22 billion in debt. The filing in U.S. Bankruptcy Court in New York will ...

Calpine Corp., the owner of power plants in 21 states, agreed Wednesday to sell its U.S. oil and natural-gas properties for $1.05 billion to undisclosed private investors, advancing a plan to cut $3 ...