DOE/EIS-0555-S1: Supplemental Environmental Impact Statement (August 2026)

DOE prepared this supplemental EIS for the Proposed Award of Credits to Pacific Gas and Electric Company for Diablo Canyon Power Plant (DOE/EIS-0555-S1).

Office of NEPA Policy and Compliance

August 14, 2026
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Proposed Award of Credits to Pacific Gas and Electric Company for Diablo Canyon Power Plant; San Luis Obispo County, California

The U.S. Department of Energy (DOE) Office of Nuclear Energy issued a supplemental environmental impact statement (SEIS) for the Proposed Award of Credits to Pacific Gas and Electric Company for Diablo Canyon Power Plant (DOE/EIS-0555-S1). The SEIS assesses the potential environmental impacts of a proposal to award credits to Pacific Gas and Electric Company (PG&E) under the Civil Nuclear Credit (CNC) Program for the continued operation of Diablo Canyon Power Plant Units 1 and 2 (DCPP) in San Luis Obispo County, California.

For more information, see Proposed Award of Credits to Pacific Gas and Electric Company for Diablo Canyon Power Plant.