Texas' surging growth in power demand was a big driver in the $26.6 billion deal to acquire Houston's largest private company.

Separately, Calpine and Constellation are already among the largest power generation companies in the country.

Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at approximately $16.4 billion, joining together two of the country’s biggest power companies.

Constellation Energy Group Inc. has agreed to buy a Texas company in a deal worth more than $26 billion that will create one of the largest energy producers in the country.

Competitive generation giant Constellation has agreed to acquire Calpine Corp. in a $16.4 billion deal that is set to create the largest producer of clean

Baltimore-based energy company Constellation’s plans to acquire a Houston, Texas-based natural gas producer in a $26.6 billion deal will boost the nation’s biggest energy firm right as the U.S. faces skyrocketing demand for power sources for a booming tech sector.

US energy giant Constellation Energy has agreed to acquire Calpine Corporation, an independent power producer, for $26.6 billion, including debt considerations. The transaction includes 50 million shares of Constellation stock, $4.5 billion in cash, and the assumption of about $12.7 billion in Calpine’s net debt.

Constellation Energy is nearing a roughly $30 billion deal to acquire power producer Calpine, people familiar with the matter said on Wednesday, a move that would significantly expand Constellation's generation assets at a time of rising U.

the Public Utility Commission of Texas and other regulatory agencies. Privately held Calpine is based in Houston. Shares of Constellation Energy Corp., based in Baltimore, surged more than 25% Friday.

Calpine's facilities are located mostly on the East Coast (mid-Atlantic and New England), Texas, and California. Also like Constellation, Calpine has a strong sales and marketing organization with ...

CEG announces the acquisition of Calpine. This should help CEG provide a broader array of clean energy and sustainability solutions.

Constellation, based in Baltimore, has agreed to acquire Houston's Calpine Corp. in a deal that will create the nation's largest clean energy provider.