Federal Energy Regulatory Commission Issues Landmark Rule Accelerating Multi-State Clean Power Supergrid Corridors

WASHINGTON — In the most sweeping overhaul of interstate electricity regulation since the passage of the Energy Policy Act of 2005, the Federal Energy Regulatory Commission (FERC) on Thursday issued a landmark final rule designed to break the jurisdictional impasses that have stalled interstate transmission construction for over two decades. The rule, designated FERC Order 2026, mandates that regional transmission organizations (RTOs) and independent system operators (ISOs) conduct proactive, multi-decade interregional planning and implement standardized cost-sharing mechanisms for high-voltage direct current (HVDC) transmission lines capable of carrying power between disparate electricity grids. Under the new regulatory structure, regional grid planners will be legally required to evaluate transmission needs based on a mandatory 30-year forward-looking economic and reliability methodology. This framework accounts for extreme weather resilience, anticipated industrial demand surges from electric vehicle fleets and semiconductor foundries, and the rapid influx of utility-scale wind and solar installations across the Great Plains and Desert Southwest. By eliminating the ability of individual states to veto interregional transmission corridors that provide demonstrably net-positive multi-state consumer benefits, the rule clears a definitive path for more than $60 billion in private transmission capital that had been languishing in regulatory uncertainty. Central to Order 2026 is an unprecedented federal backstop siting mechanism authorized under the modernized Infrastructure Investment and Jobs Act. If a state regulatory commission fails to approve or formally rejects a certified National Interest Electric Transmission Corridor project within one year of application submission, FERC will now exercise statutory authority to grant federal certificates of public convenience and necessity, allowing developers to secure necessary rights-of-way and commence construction under federal environmental review procedures. "Our nation's electric power system is currently divided into regional silos that are incapable of sharing power during life-threatening winter storms and summer heat domes," stated FERC Chairman Willie Phillips during the public voting session in Washington. "When a deep freeze immobilizes generating stations in Texas or the Midwest while neighboring regions enjoy abundant spare capacity, transmission lines are the difference between kept lights and catastrophic grid failure. Today's order turns our fragmented patchwork of regional grids into a unified, resilient American supergrid." Energy modeling conducted by the National Renewable Energy Laboratory (NREL) estimates that the initial portfolio of seven designated interregional HVDC corridors—stretching over 25,000 miles across the Midwest, Southeast, and Western Interconnection—will reduce wholesale electricity costs for American households by $14 billion annually by 2030, while eliminating nearly 85 million metric tons of carbon emissions each year by efficiently wheeling curtailed wind and solar generation to major urban load centers.

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