As of November 21, 2025, the Federal Energy Regulatory Commission (FERC) approved a transmission service agreement between the Exelon utility PECO Energy and Amazon Data Services. The agreement outlined how Amazon will pay for grid upgrades necessary to supply power to a planned data center in Pennsylvania. [1] FERC rejected a call by the PJM Interconnection’s market monitor Monitoring Analytics to assess how the data center’s could affect capacity and energy costs for ratepayers and grid reliability, suggesting that it was outside the scope of the proceeding. [2] In its decision, FERC said that the agreement met the Mobile-Sierra presumption, under which FERC must presume that freely negotiated contracts between independent parties are just and reasonable unless the rates seriously harm the public.
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