Fleet of 21 nuclear reactors generates enough carbon-free electricity to power the equivalent of nearly 15 million homes

As the country endured yet another brutal summer of extended heatwaves and extreme weather brought upon by climate change, Constellation’s carbon-free clean energy centers ran at nearly full power. The company’s 21 nuclear reactors at 12 sites from the Midwest to the Mid-Atlantic and Northeast operated at a 98.1% capacity factor during the months of June, July and August to keep the lights on and air conditioners humming 24/7 for nearly 15 million homes and businesses.

Constellation technical experts prepared for the extreme summer heat by performing tens of thousands of tasks at nuclear plants during spring refueling and maintenance outages designed to help all reactors run uninterrupted during the hot summer months. Nuclear professionals completed important technology upgrades and equipment refurbishments, tested electrical and distribution equipment, and loaded new fuel. These tasks are beginning anew for the fall maintenance season in preparation for increased winter demand.

“There is no doubt that as extreme weather events and intense heat increase, especially during summer months, Constellation’s clean energy centers remain indispensable assets providing reliable and affordable carbon-free energy to American homes and businesses,” said Bryan Hanson, Constellation’s executive vice president and chief generation officer. “As we transition to cooler temperatures this fall, our fleet’s nuclear experts have already begun a comprehensive winter preparedness campaign to ensure the reliability of our facilities will continue in the winter months ahead.”

Constellation’s nuclear fleet in the mid-Atlantic and Northeast U.S. includes Calvert Cliffs Nuclear Power Plant in Calvert County, Maryland; Pennsylvania facilities Limerick Generating Station and Peach Bottom Atomic Power Station in Montgomery and York counties; and New York facilities Fitzpatrick Nuclear Power Plant and Nine Mile Point Nuclear Station in Oswego County and Ginna Nuclear Power Plant in Wayne County. Its Illinois nuclear fleet includes Braidwood Generating Station in Will County, Byron Generating Station in Ogle County, Clinton Power Station in DeWitt County, Dresden Generating Station in Grundy County, LaSalle County Generating Station, and Quad Cities Generating in Rock Island County.

About Constellation

A Fortune 200 company headquartered in Baltimore, Constellation Energy Corporation (Nasdaq: CEG) is the nation’s largest producer of clean, carbon-free energy and a leading supplier of energy products and services to businesses, homes, community aggregations and public sector customers across the continental United States, including three fourths of Fortune 100 companies. With annual output that is nearly 90% carbon-free, our hydro, wind and solar facilities paired with the nation’s largest nuclear fleet have the generating capacity to power the equivalent of 16 million homes, providing about 10% of the nation’s clean energy. We are further accelerating the nation’s transition to a carbon-free future by helping our customers reach their sustainability goals, setting our own ambitious goal of achieving 100% carbon-free generation by 2040, and by investing in promising emerging technologies to eliminate carbon emissions across all sectors of the economy. Follow Constellation on LinkedIn and X.

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