Walmart's (WMT) first nuclear power purchase agreement will secure 176 megawatts of emissions-free electricity from Constellation's (CEG) Dresden Clean Energy Center in Illinois, the companies announced Tuesday.
Beginning in 2029 and 2030, Walmart will source electricity, capacity and environmental attributes under two separate 15-year agreements, providing long-term demand support for Dresden's nuclear generation.
Through planned uprates at Dresden, Constellation will add 30 MW of generating capacity by boosting output from existing reactors rather than building new generation assets, the companies said.
The additional electricity will help power Walmart's planned perishable distribution center in Belvidere, Illinois, while supporting local employment and the retailer's ongoing supply chain expansion.
Walmart entered its first nuclear power purchase agreement through the deal, one of the first such arrangements between a major US retailer and a US nuclear energy facility, according to the announcement.
After renewing Dresden's operating licenses in December 2025, Constellation can run the facility through 2049 and 2051, allowing the plant to continue supplying carbon-free baseload power and supporting more than 1,100 jobs, the companies added.
While Constellation's generation fleet produces enough electricity to serve over eight million homes, Walmart maintains a significant Illinois footprint with about 175 stores and clubs and over 55,000 associates.
"We're constantly evaluating new capabilities and energy solutions that help ensure the electricity we rely on is dependable, responsibly produced, and built to support long-term growth," said Shayne Wahlmeier, senior vice president of energy for Walmart US.
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