# FERC Orders Grid Operators to Review Tariffs

On June 18, 2026, the Federal Energy Regulatory Commission (FERC) directed all six U.S. regional transmission organizations and independent system operators, together with their transmission owners, to justify their large-load interconnection tariffs or propose reforms. The order also required each operator to submit an informational report within 30 days on ensuring adequate generation. Responses to the tariff directive were due within 60 days; both filing windows have passed as of October 1, 2026, though the signal does not report the filings or any resulting decisions. Any tariff changes could affect the cost, schedule, and feasibility of grid connections for large EV-charging depots, data centers, and industrial facilities.

- The order concerns grid access for large electricity loads, a key factor in planning and procuring power-intensive facilities and infrastructure.
- Procurement and project teams developing these facilities can incorporate potential changes to interconnection costs and schedules into site selection, project budgets, and delivery assumptions.
- The required reports address generation adequacy, which may also affect the feasibility and timing of proposed large-load projects.

**Jurisdictions:** federal
**Industries:** Energy & Utilities
**Topics:** Regulatory Compliance
**Published:** September 30, 2026

### Government Entities
- Federal Energy Regulatory Commission (FERC)

### Sources
- [FERC orders all six US grid operators to justify or reform large electric load interconnection rules](https://gcn.com/ferc-orders-large-load-interconnection-grid/22060) - gcn.com