Constellation Energy

Overview

Constellation Energy is the nation's largest producer of emissions-free energy, operating the largest fleet of nuclear power plants in the United States. The company was spun off from Exelon Corporation in February 2022 and is headquartered in Baltimore, Maryland. Constellation is a Fortune 200 company that supplies energy to approximately three-fourths of Fortune 100 companies.

Led by President and CEO Joe Dominguez, Constellation has positioned itself at the intersection of decarbonization and the surging demand for reliable power driven by data center build-outs and AI infrastructure. In January 2025, Constellation announced the acquisition of Calpine Corporation, which closed on January 7, 2026. The deal was valued at roughly $16.4 billion in equity (about $4.5 billion cash plus 50 million Constellation shares) plus approximately $12.7 billion of assumed net debt, or about $26.6 billion in total. It added a large fleet of natural gas and geothermal generation and made Constellation the largest power producer in the United States at roughly 55 GW of capacity. To satisfy Department of Justice and FERC conditions, Constellation agreed in March 2026 to sell about 4.4 GW of PJM natural gas plants to LS Power for roughly $5 billion.

Business operations

Financial performance

Constellation reported FY2024 GAAP net income of $3.7 billion ($11.89/share), a significant increase from $1.6 billion in FY2023. Revenue was $23.6 billion. Adjusted operating earnings were $2.7 billion ($8.67/share), up from $6.28/share in FY2023.

FY2025 revenue grew to $25.5 billion. However, GAAP net income declined to $2.3 billion ($7.40/share), partly due to lower nuclear production tax credit revenue and unrealized hedging losses. Adjusted operating earnings improved to approximately $2.9 billion ($9.39/share). Wholesale power prices rose across key markets in 2025, a favorable environment for Constellation's merchant generation fleet. The company completed $1 billion in share repurchases in FY2024 and increased its dividend by 25%. Including Calpine, Constellation employs about 16,500 people.

Strategy & outlook

Constellation's strategy centers on its role as the reliable, carbon-free power provider for the data center and AI buildout. The Crane Clean Energy Center restart (formerly Three Mile Island Unit 1) is under a 20-year PPA with Microsoft; Constellation is targeting a restart as early as 2027, ahead of the original 2028 schedule, supported by an approximately $1 billion U.S. Department of Energy loan. The company is also pursuing nuclear plant capacity uprates, life extensions, and AI-powered demand response tools.

The Calpine integration is expected to lift earnings in 2026 as the assets are consolidated; Constellation guided to full-year 2026 adjusted operating earnings of $11.00 to $12.00 per share and has framed base earnings growth of more than 20% annually through 2029. In December 2025, FERC directed PJM to develop new rules for co-locating large data-center loads at power plants, a framework the company is watching closely for its nuclear-powered data center strategy.

Key considerations

Nuclear generation carries low-probability, high-impact operational risks. Any safety incident could trigger regulatory tightening and significantly affect the company's valuation. The Crane restart timeline carries execution risk, including grid interconnection.

Constellation's earnings are sensitive to wholesale power prices, which are volatile and affected by weather, gas prices, and demand patterns. Federal nuclear production tax credits (under the IRA) have been material to earnings; changes to these credits could affect profitability. The Calpineacquisition adds integration risk and increases the company's exposure to natural gas-fired generation, which may face future carbon-related regulatory costs.

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