118 F.4th 361
D.C. Cir.2024Background
- FERC required NextEra (owner of Seabrook nuclear plant) to upgrade its circuit breaker to allow Avangrid (developer of new transmission project) to interconnect with the New England grid.
- The cost and regulatory regime for interconnection of new power sources is governed by the ISO New England tariff and a standardized Large Generator Interconnection Agreement (LGIA).
- Seabrook’s existing breaker was nearly at capacity; more entrants would overload it, posing risks to the plant and grid.
- Seabrook and Avangrid agreed Avangrid would pay direct upgrade costs, but disputed responsibility for indirect (opportunity, legal) costs and whether Seabrook had to upgrade at all.
- FERC sided with Avangrid, compelling Seabrook to upgrade and limiting Avangrid’s financial responsibility to direct costs only.
- Seabrook challenged the order, arguing FERC lacked authority because the breaker is a generation facility, not a transmission facility, and that the LGIA/tariff imposed no upgrade obligation.
Issues
| Issue | Plaintiff's Argument (Seabrook/NextEra) | Defendant's Argument (FERC/Avangrid) | Held |
|---|---|---|---|
| FERC’s statutory authority over upgrade | FERC may not require upgrades to generation facilities (like Seabrook’s breaker) | Authority extends to generator facilities as needed to regulate interstate transmission | FERC has statutory authority; upgrade directly affects transmission and is within FERC’s remit |
| Obligation to upgrade under LGIA/tariff | LGIA/tariff do not clearly require Seabrook to upgrade; no contractual obligation | Good Utility Practice and LGIA impose a continuing duty to maintain adequate breaker as grid changes | LGIA requires Seabrook to upgrade; obligation is ongoing, especially for new grid entrants |
| Allocation of indirect costs | All upgrade-related costs (including lost profits, legal fees) should be reimbursed | Only direct costs for construction are reimbursable; opportunity/legal costs are not clearly provided for | Only direct costs covered under the tariff; denial of indirect costs is reasonable |
| Proper process for tariff modification | FERC bypassed needed s.206 process for changes; can’t rewrite contract for policy goals | Regulatory/contractual interpretation suffices given statutory/policy context | Court will not require s.206 process; FERC’s interpretation is permissible given grid policy |
Key Cases Cited
- Detroit Edison Co. v. FERC, 334 F.3d 48 (D.C. Cir. 2003) (describing distinctions and regulatory powers in electricity transmission)
- Transmission Access Pol’y Study Grp. v. FERC, 225 F.3d 667 (D.C. Cir. 2000) (upholding FERC's open access/Order 888 authority)
- Midwest ISO Transmission Owners v. FERC, 373 F.3d 1361 (D.C. Cir. 2004) (history and structure of power market regulation)
- Nat’l Ass’n of Regul. Util. Comm’rs v. FERC, 475 F.3d 1277 (D.C. Cir. 2007) (validating standard interconnection agreements under FERC's authority)
- FERC v. Elec. Power Supply Ass’n, 577 U.S. 260 (2016) (scope of FERC’s authority under the Federal Power Act)
- Long Island Power Auth. v. FERC, 27 F.4th 705 (D.C. Cir. 2022) (interpretation of unambiguous tariffs—no deference)
- Ameren Servs. Co. v. FERC, 330 F.3d 494 (D.C. Cir. 2003) (plain meaning governs in contract/tariff interpretation)
- Old Dominion Elec. Coop. v. FERC, 898 F.3d 1254 (D.C. Cir. 2018) (cost allocation need not be exacting under cost-causation)