Walmart has entered into a pioneering 15-year agreement to purchase carbon-free electricity from Constellation’s Dresden Clean Energy Center in Illinois. This marks the retailer’s first nuclear power purchase agreement (PPA), securing a steady supply of emissions-free energy to support its growing operations in the region.
The contract covers approximately 176 megawatts of wholesale electricity, including an expansion of about 30 megawatts achieved through efficiency upgrades at the existing plant. These “uprates” enhance output from current nuclear units without constructing new reactors, increasing clean power capacity while maintaining cost-effectiveness.
The deal is structured across two 15-year terms beginning in 2029 and 2030. It includes not only energy but also environmental attributes and capacity, reflecting Walmart’s commitment to strengthening its clean energy procurement and reducing its carbon footprint. The additional power supply is planned to support Walmart’s new high-tech perishable distribution center currently under development in Belvidere, Illinois.
Constellation highlighted the agreement as a form of long-term stewardship that bolsters local energy infrastructure, sustains jobs, and supports economic activity in the area. The arrangement also contributes to reinforcing reliability on the Illinois power grid by maintaining stable, emissions-free electricity generation.
This collaboration between a major retailer and a nuclear energy facility is among the first of its kind in the United States, signaling a growing role for nuclear power in corporate clean energy strategies. By leveraging existing nuclear infrastructure and efficiency improvements, Walmart aims to access affordable, reliable clean energy, enabling it to offer low prices while advancing sustainability goals.