Walmart Inc. and Constellation Energy Corporation have announced a landmark, long-term commercial contract marking the retail giant’s first-ever nuclear power purchase agreement. Under the terms of the agreement, Constellation will supply approximately 176 megawatts of wholesale clean energy to the retailer from its Dresden Clean Energy Center located in Illinois. The multi-decade transaction consists of two separate 15-year terms scheduled to take effect in 2029 and 2030.
According to the official announcement published by Walmart, the emissions-free electricity secured through this commercial structure will directly power a high-tech, perishable distribution center currently under development in Belvidere, Illinois. This deployment demonstrates a growing strategic corporate trend where major logistics and supply chain operators leverage specialized, round-the-clock baseload power to sustain modern, automation-heavy fulfillment infrastructure.
The transaction is structured to include energy, environmental attributes, and dedicated output capacity. Crucially, the agreement accounts for 30 megawatts of expanded generating capacity achieved through planned "uprates." These uprates represent advanced engineering and efficiency upgrades that systematically increase the output of existing nuclear reactors without requiring the construction of entirely new physical facilities or expanding the current environmental footprint.
While zero-emission nuclear energy agreements have recently been highly concentrated within the technology sector to support massive artificial intelligence data centers, this partnership stands as one of the first major agreements executed between a premier global retailer and a nuclear utility provider in the United States. It signals an expanding corporate appetite for dependable, continuous clean energy options capable of mitigating grid volatility.
The Dresden facility, which supports more than 1,100 regional jobs, received an operating license renewal in late 2025 that extends its productivity through 2049 and 2051. Representatives from both organizations highlighted that the long-term capital commitment enabled by this purchase agreement ensures continued investment in the facility's localized reliability, asset maintenance, and performance optimization.
For the Bentonville-based retailer, the energy infrastructure investments tie directly into ongoing real estate expansions and supply chain modernization goals while maintaining low fulfillment overhead. By incorporating nuclear energy into its regional electricity procurement strategy, the company gains a reliable hedge against energy market fluctuations, helping insulate its cold-chain logistics networks from volatile power prices.
Financial details regarding the specific wholesale transaction pricing structure were not disclosed by either corporation.
