Constellation Energy

Constellation Energy Corporation stands as America's largest producer of clean, carbon-free energy, providing electric power, natural gas, and comprehensive energy management services to approximately two million customers across the continental United States. Headquartered in Baltimore, Maryland, the company operates the nation's largest fleet of nuclear power plants with 21 nuclear reactors at 12 sites across the Midwest, Mid-Atlantic, and Northeast regions, alongside significant wind, solar, and hydroelectric assets. With a total generation capacity of approximately 32,400 megawatts producing nearly 90% carbon-free energy annually, Constellation supplies more than 10% of the nation's clean electricity, enough to power the equivalent of 16 million homes.

The company emerged as an independent, publicly traded entity on February 2, 2022, following its strategic separation from Exelon Corporation. This transformation created a focused Fortune 200 company dedicated exclusively to competitive power generation and customer-centric energy solutions, allowing Constellation to concentrate on its mission of accelerating the transition to a carbon-free future. The separation marked a pivotal moment in the company's evolution, positioning it as Baltimore's only Fortune 500 company with approximately 14,000 employees operating across 48 states, Canada, and the United Kingdom.

Constellation's roots trace back over 200 years to 1816 with the founding of the Gas Light Company of Baltimore by artist and entrepreneur Rembrandt Peale. Through decades of evolution—including the formation of Baltimore Gas and Electric (BGE) and the creation of Constellation Energy Group in 1999—the company has grown into a clean energy powerhouse. The 2012 merger with Exelon consolidated significant nuclear generation assets, and the 2022 separation allowed Constellation to emerge with the industry-leading nuclear fleet that defines its competitive advantage today.

As a pioneer in clean energy innovation, Constellation is addressing the growing demand for reliable, carbon-free power driven by data centers, artificial intelligence, and industrial electrification. The company's landmark 20-year power purchase agreement with Microsoft to restart Three Mile Island's Unit 1 reactor (to be renamed Crane Clean Energy Center) exemplifies this strategic focus on long-term partnerships with technology leaders. Looking ahead, Constellation's planned $26.6 billion acquisition of Calpine Corporation will create America's leading clean and reliable energy producer with nearly 60 gigawatts of nuclear, natural gas, geothermal, hydro, wind, solar, and battery storage capacity, positioning the combined entity to meet the nation's accelerating clean energy needs while maintaining grid reliability and affordability.