Oklahoma Gas and Electric Co. v. Federal Energy Regulatory Commission, No. 20-1062 (D.C. Cir. 2021)Annotate this Case
Several utilities that are managed by the Southwest Power Pool (SPP), a regional transmission operator, paid for upgrades to the transmission grid. The operative tariff required other utilities who benefitted from these upgrades to share the costs of the expanded network. The tariff, however, also required SPP to invoice the charges monthly and to make adjustments within one year. The reimbursement calculation proved complicated. It took SPP eight years to implement it, during which time SPP did not invoice for the upgrade charges. FERC initially granted SPP a waiver of the tariff’s one-year time bar but later determined it lacked the authority to waive this provision retroactively. FERC’s revised determination meant the utilities that had made substantial outlays for upgrades were denied reimbursement for the eight years that had elapsed.
The D.C. Circuit denied petitions for review filed by SPP and a company that sponsored upgrades and has been denied reimbursement. Once a tariff is filed, FERC has no statutory authority (16 U.S.C. 824d(d)) to provide equitable exceptions or retroactive modifications to the tariff. SPP may impose only those charges contained in the filed rate. Because the one-year time bar for billing is part of the filed rate, FERC could not retroactively waive it, even to remedy a windfall for users of the upgraded networks.