Constellation Energy announced on October 27 that the U.S. Department of Energy offered a conditional loan commitment of up to $5 billion for increasing output at existing nuclear plants.
The company said potential projects involve eight sites: Braidwood, Byron, Clinton, Dresden, LaSalle and Quad Cities in Illinois; Calvert Cliffs in Maryland; and Limerick in Pennsylvania.
The commitment comes from DOE’s Office of Energy Dominance Financing. It could supplement private investment in reactor uprates, which increase generating capacity at facilities already operating.
Constellation linked the financing proposal to growing electricity demand and earlier long-term power agreements with technology companies. Those customer commitments are separate from the proposed federal loan.
The announcement is conditional financing rather than completed funding. Due diligence, definitive financing documents and other requirements remain outstanding. Constellation said the commitment does not itself constitute a final decision to undertake any individual upgrade or proceed at every listed plant.
Sources: Constellation — October 27 announcement distributed by Business Wire: https://www.businesswire.com/news/home/20261027834771/en/ Reuters: https://www.reuters.com/business/energy/constellation-gets-conditional-5-billion-us-doe-loan-commitment-nuclear-plant-2026-10-27/