Constellation Energy

Constellation Energy Corporation is an American energy company headquartered in Baltimore, Maryland. The company provides electric power, natural gas, and energy management services. It has approximately two million customers across the continental United States. The company was known as Constellation Energy Group, (former NYSE ticker symbol CEG) a Fortune 500 company and one of the largest electricity producers in the United States, until a merger with Exelon in 2012. When the acquisition was approved by FERC, Constellation Energy's energy supply business was re-branded as Constellation, an Exelon company. As part of the 2012 merger, Baltimore Gas and Electric, the regulated utility operated by Constellation Energy, became a regulated utility operating under Exelon Utilities. The current iteration of the company was founded in 2022 after splitting off from Exelon. Before merging with Exelon, Constellation Energy Group operated more than 35 power plants in 11 states (mainly Maryland, Pennsylvania, New York, West Virginia, and California). Baltimore Gas and Electric created Constellation as a holding company in 1999. History On September 15, 2005, Constellation Energy announced a joint venture, UniStar Nuclear, with Areva to market the European Pressurized Reactor (EPR) in the United States. On December 19, 2005, FPL Group, Inc. announced the acquisition of Constellation Energy in a merger transaction valued at more than $11 billion as well as the fact that it would adopt Constellation Energy as its name for the post-merger entity. The merger was canceled on 25 October 2006.