Order No. 1920 Transmission Planning Compliance Filings Schedule

Key metadata

Document number

ferc-order-1920-compliance-schedule

Type

Compliance Schedule

Publication date

2025-06-16

Agencies

Energy Department, Federal Energy Regulatory Commission

CFR references

18 CFR part 35

Original source

FERC schedule page

FERC Order 1920: Transmission Planning Deadlines Extended to 2026-2027

FERC has extended the deadlines for transmission providers to comply with Order No. 1920, which reforms regional transmission planning and cost allocation. This means the implementation of new rules designed to improve grid infrastructure and facilitate the integration of new generation, including battery storage, will take longer.

Why it matters

Extended Compliance Deadlines: Transmission providers now have more time to submit their compliance filings for Order No. 1920's requirements, including those related to interregional transmission coordination. For battery storage and grid infrastructure developers, this means the benefits of improved transmission planning and interconnection processes under Order No. 1920 will be realized later than initially anticipated. Extended State Engagement Period: Crucially, the six-month 'Engagement Period' for Relevant State Entities to negotiate cost allocation methods for Long-Term Regional Transmission Facilities can now be extended for up to an additional six months if requested by states. This is highly significant for battery storage projects because how transmission costs are allocated directly impacts project economics and viability. The opportunity for states to negotiate 'ex ante' (before selection) cost allocation or use a 'State Agreement Process' provides a critical avenue for ensuring that the costs of grid upgrades, which benefit storage integration and grid reliability, are fairly distributed.

Who is affected

Transmission Providers: Have more time to develop and submit their compliance plans. Relevant State Entities: Have more time to engage in negotiations over transmission cost allocation, which is vital for influencing the build-out of grid infrastructure that supports clean energy and storage. Battery Storage & Grid Developers/Investors: Will experience a delayed but potentially more robust and state-supported transmission planning environment, particularly regarding cost allocation for new transmission that enables storage deployment.

Key timing

New compliance deadlines for interregional coordination include December 12, 2026 (e.g., for coordination with SERTP and MISO) and February 12, 2027 (e.g., for coordination with NYISO and ISO-NE). Extensions for the state Engagement Period are being granted on a case-by-case basis, allowing more time for critical cost allocation negotiations.