Constellation Energy Corp. CEG

What this company does

With 55 GWs of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, the company's fleet generates enough capacity to power the equivalent of 27 million homes, providing about 10% of the nation's clean energy. It serves approximately 2.5 million customer accounts nationwide as a competitive retail supplier, including three-fourths of the Fortune 100. At December 31, 2025, its owned generating resources had a total capacity of 31,676 MWs. It has five reportable segments, representing the different geographic regions in which its owned generating resources are located and its customer-facing activities are conducted. The Mid-Atlantic segment, covering the eastern half of PJM including New Jersey, Maryland, Virginia, West Virginia, Delaware, the District of Columbia, and parts of Pennsylvania and North Carolina, accounted for 10,386 MWs of net generation capacity, or 33% of the total. The Company was formed on February 1, 2022, when Exelon completed the separation by distributing all outstanding shares of the Company's common stock to Exelon's shareholders, with the Company thereafter holding the interests in Constellation previously held by Exelon.

Written from the business description in CONSTELLATION ENERGY CORPORATION's annual report to the U.S. Securities and Exchange Commission, filed 24 February 2026. Every sentence was checked against that document before publication.