Share on LinkedInShare on LinkedIn

ARTICLE · 18 NOVEMBER 2025

FERC Large-Load Interconnection Preliminary Rulemaking: Key Takeaways For Data Center Developers, Other Large Load Projects, And Investors

Mayer Brown
Mayer Brown
Contributor
Mayer Brown

Mayer Brown

Mayer Brown is a leading international law firm positioned to represent the world’s major...

View firm profile
Explore more from Mayer Brown

In late October 2025, at the direction of the Secretary of the US Department of Energy ("DOE"), the Federal Energy Regulatory Commission ("FERC" or the "Commission")...

United StatesEnergy and Natural Resources

In late October 2025, at the direction of the Secretary of the US Department of Energy ("DOE"), the Federal Energy Regulatory Commission ("FERC" or the "Commission") opened a preliminary rulemaking proceeding with the potential to result in significant changes to how data centers, advanced manufacturing facilities, and other energy-intensive projects are interconnected to the US bulk electric transmission grid.

Background

On October 23, the Secretary of the DOE issued a directive (the "Directive") under Section 403 of the Department of Energy Organization Act (the "Act")1 to FERC to assert jurisdiction over the interconnection of large electrical loads to the US bulk electric transmission system and establish standardized interconnection procedures for such loads. The Directive attached an Advance Notice of Proposed Rulemaking ("ANOPR") entitled Ensuring the Timely and Orderly Interconnection of Large Loads, which outlines the need for large-load2 interconnectio

We operate a free-to-view policy, asking only that you register in order to read all of our content. Please login or register to view the rest of this article.

Visit us at mayerbrown.com

Mayer Brown is a global services provider comprising associated legal practices that are separate entities, including Mayer Brown LLP (Illinois, USA), Mayer Brown International LLP (England & Wales), Mayer Brown (a Hong Kong partnership) and Tauil & Chequer Advogados (a Brazilian law partnership) and non-legal service providers, which provide consultancy services (collectively, the "Mayer Brown Practices"). The Mayer Brown Practices are established in various jurisdictions and may be a legal person or a partnership. PK Wong & Nair LLC ("PKWN") is the constituent Singapore law practice of our licensed joint law venture in Singapore, Mayer Brown PK Wong & Nair Pte. Ltd. Details of the individual Mayer Brown Practices and PKWN can be found in the Legal Notices section of our website. "Mayer Brown" and the Mayer Brown logo are the trademarks of Mayer Brown.

© Copyright 2026. The Mayer Brown Practices. All rights reserved.

This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

See more popular content from