Constellation Energy to Acquire Calpine in $26.6B Agreement

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Constellation Energy Corporation CEG and Calpine Corp. announced that they have entered into a definitive agreement under which CEG will acquire Calpine in a cash and stock transaction valued at an equity purchase price of nearly $16.4 billion. It is composed of 50 million shares of CEG stock and $4.5 billion in cash, plus the assumption of nearly $12.7 billion of Calpine’s net debt.

The net purchase price is $26.6 billion, which represents an attractive acquisition multiple of 7.9x 2026 EV/EBITDA after deducting the cash that Calpine is projected to earn between the signing and the anticipated close date, as well as the value of Calpine's tax attributes.

As consumers switch to more sustainable clean energy sources, Calpine's low-emission natural gas facilities will be crucial to preserving grid resilience for decades to come. Both businesses have made early investments in carbon sequestration technologies to help guarantee that consumers can continue to be reliably powered by America's plentiful natural gas supply.

In addition to restarting the Crane Clean Energy Centre in Pennsylvania, Constellation Energy will invest in renewable energy, extend the life of current clean energy sources, explore new advanced nuclear projects, and increase the output of existing nuclear plants to boost the amount of zero-emission energy that is available to the grid.

Strategic Advantages of the Agreement

By creating the largest renewable energy supplier in the country, the deal makes it possible to provide a wider range of energy and sustainability solutions to more clients from coast to coast. Calpine, the biggest U.S. producer of energy from low-emission natural gas production, and an enlarged renewable energy portfolio, including the largest geothermal generation operation in the United States, will join Constellation Energy, which is already the country's largest producer of power that is emissions-free around-the-clock.

Constellation Energy and Calpine will have nearly 60 gigawatts (GW) of capacity from zero- and low-emission sources, including nuclear, natural gas, geothermal, hydro, wind, solar, cogeneration and battery storage. The combined company’s footprint will span the continental United States and include a significantly expanded presence in Texas.

This deal broadened CEG’s renewable portfolio, including the Geysers facility in Northern California, which is the largest geothermal generator in the United States. The combined company is poised for further growth, enhanced by its increased scale and cash flow.