On December 14, 2021, PG&E filed the 2021 Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) with California Public Utilities Commission (CPUC).  This cost estimate must be updated and filed with the CPUC every three years.

The updated 2021 Decommissioning Cost Estimate for DCPP is $4.1B (2020$), which is a cost savings of $300M compared to the approved settlement for the 2018 NDCTP. A key highlight of the revised cost estimate is transferring all spent nuclear fuel (SNF) to dry cast storage at the Independent Spent Fuel Storage Installation (ISFSI) after 3.25-years of cooling in the spent fuel pools (contingent upon necessary regulatory approvals).  The 2018 NDCTP assumed transfer after 10-years of cooling.  The Diablo Canyon Decommissioning Engagement Panel’s Strategic Vision document was also included in the 2021 filing.

On July 28, 2023, Administrative Law Judge, Amin Nolan, issued a proposed decision adopting a settlement agreement negotiated among selected parties to the proceedings and resolving the remainder of disputed issues.  On September 21, 2023, the CPUC voted to adopt the Administrative Law Judge’s proposed decision, including the settlement agreement.

View the Administrative Law Judge’s proposed decision
View CPUC decision to adopt the Administrative Law Judge’s proposed decision
View settlement agreement

To view all of the 2021 NDCTP filing documents go to https://pgera.azurewebsites.net/Regulation/search and select “Nuclear Decom Cost Tri 2021 {A.21-12-000]” in the dropdown box.