As of November 4, 2024, the Federal Energy Regulatory Commission (FERC) rejected an amended interconnection service agreement (ISA) that would have enabled expanded power sales to a co-located Amazon data center from a nuclear power plant in Pennsylvania, which is majority-owned by Talen Energy. [1] The vote was 2-1, with FERC commissioners Mark Christie and Lindsay See in the majority. The agency found that PJM Interconnection’s amended ISA failed to show that provisions in the agreement that contravene the grid operator’s existing ISA were needed due to “specific reliability concerns, novel legal issues, or other factors.” In dissent, FERC Chairman Willie Phillips stated that the decision threatened national security and grid reliability. The other two FERC commissioners, David Rosner and Judy Chang did not participate in the case. The decision surprised investors and caused a sharp negative share response for companies that own nuclear power plants that could serve data centers. The decision comes at a time when data center companies are exploring co-locating their facilities at existing power plants.

[1] https://elibrary.ferc.gov/eLibrary/filelist?accession_number=20241101-3061&optimized=false