The company is betting that data-center owners will be hungry for all sorts of power—from nuclear to conventional.

Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at ...

Constellation Energy Corp., an electricity provider whose stock has doubled over the last year on hopes it will help meet the ...

NEW YORK (Reuters) - U.S. nuclear power provider Constellation Energy on Friday agreed to buy privately-held natural gas and ...

Constellation Energy agreed to buy Calpine for $16.4 billion, combining two of the country’s largest electricity generators ...

Baltimore-based Constellation, the nation’s largest operator of nuclear power plants, is acquiring Calpine Corp.

Baltimore's Constellation Energy buying Calpine in a deal that joins two huge U.S. power companies George W. Bush gave fellow ...

The takeover will be a big deal in the US power industry and will significantly profit Calpine's shareholder who bought the ...

Constellation Energy Corp. shares surged to a record high after agreeing to acquire closely held Calpine Corp. for $16.4 ...

Constellation Energy announces acquisition of Calpine, creating America's largest clean energy provider.

Constellation Energy struck a $26.6 billion deal to buy Calpine, uniting two of the U.S.'s largest power generators amid ...

Constellation Energy shares shot 25% higher today as the company confirmed its intentions to purchase Calpine. Calpine ...