Entergy vs Constellation Energy
Side-by-side comparison of AI visibility scores, market position, and capabilities
New Orleans Gulf South regulated utility (NYSE: ETR) ~$12B revenue; 1,500 MW new gas gen for Meta data center (Entergy Louisiana), nuclear baseload, Mississippi River industrial corridor competing with Cleco.
About
Entergy Corporation is a New Orleans, Louisiana-based regulated electric utility holding company — publicly traded on the New York Stock Exchange (NYSE: ETR) as an S&P 500 Utilities component — providing electricity generation, transmission, and distribution to approximately 3 million customers across Arkansas, Louisiana, Mississippi, and Texas through four regulated utility subsidiaries: Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, and Entergy Texas, along with Entergy New Orleans, through approximately 13,000 employees. Entergy Louisiana broke ground in 2025 on two new combined-cycle natural gas combustion turbine plants totaling approximately 1,500 megawatts of generation capacity in Richland Parish, Louisiana — directly supporting Meta's new data center development in the region — representing one of the largest generation investments in Entergy Louisiana's recent history, with the facilities projected to save customers $650 million through 2040 through more efficient power generation displacing higher-cost units. CEO Drew Marsh leads Entergy's strategy of executing on the unprecedented data center and industrial load growth in Louisiana, where the combination of affordable land, available water for cooling, reliable power infrastructure, and the Mississippi River industrial corridor creates favorable economics for hyperscale data center siting. Entergy's nuclear fleet (Grand Gulf Nuclear Station in Mississippi, Arkansas Nuclear One, Waterford 3 in Louisiana, River Bend Station in Louisiana) provides low-carbon baseload power that supports Entergy's reliability obligations and serves data center customers' clean energy procurement preferences.
Baltimore largest US nuclear operator (NASDAQ: CEG) at $23.6B FY2024 revenue; 21 reactors, Three Mile Island restarted Sept 2024 for Microsoft AI data center, 24/7 carbon-free power competing with Vistra and NRG.
About
Constellation Energy Corporation is a Baltimore, Maryland-based clean energy company — publicly traded on NASDAQ (NASDAQ: CEG) as an S&P 500 Utilities component with a market capitalization of approximately $70 billion — operating the United States' largest fleet of carbon-free nuclear power plants with 21 nuclear reactors at 13 generating stations across Illinois, Pennsylvania, Maryland, New Jersey, and New York, through approximately 13,000 employees generating approximately 10% of all clean electricity in the United States. In fiscal year 2024, Constellation Energy reported revenue of $23.6 billion. Constellation was separated from Exelon Corporation in February 2022, when Exelon spun off its power generation business as an independent company while retaining the regulated utility subsidiaries (ComEd, PECO, BGE, Pepco, Delmarva, Atlantic City Electric). CEO Joe Dominguez leads Constellation's strategy of capitalizing on the AI data center electricity demand surge — nuclear power's unique combination of 24/7 carbon-free reliability makes Constellation the preferred clean power supplier for tech companies' 24/7 carbon-free electricity commitments that intermittent wind and solar cannot fulfill. Constellation's landmark achievement was the September 2024 restart of Three Mile Island Unit 1 (renamed Crane Clean Energy Center) — the reactor that operated safely for decades before closing in 2019 due to economic competition from cheap natural gas — under a 20-year power purchase agreement with Microsoft to supply the data center campus supporting Microsoft's Azure AI infrastructure in Pennsylvania.
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