On June 18, 2026, the Federal Energy Regulatory Commission (“FERC”) issued six show cause orders under Section 206 of the Federal Power Act (“FPA”) to each of the country’s regional transmission operators (“RTOs”) and independent system organizations (“ISOs”), along with their transmission owners (collectively, the “Show Cause Orders”). FERC issued the Show Cause Orders as an initial response to the Secretary of Energy’s October 2025 letter directing FERC to initiate an Advance Notice of Proposed Rulemaking (“ANOPR”) presenting potential reforms to ensure the timely and orderly interconnection or large loads to the transmission system. The ANOPR docket, Docket No. RM26-4-000, generated more than 3,500 pages of public comments. The Show Cause Orders also come on the heels of a series of FERC’s actions over the past year designed to address large load growth. These actions include a December 2025 FERC order directing PJM Interconnection, L.L.C. (“PJM”) to adopt clear, transparent tariff rules for large energy users located at or near generation facilities, FERC’s January 2026 approval of Southwest Power Pool, Inc.’s (“SPP”) High Impact Large Load and High Impact Large Load Generation Assessment processes, as well as FERC’s June 2026 approval of SPP’s Conditional High Impact Large Load proposal.
Brendan Gaffney*
*Brendan C. Gaffney is a 2026 summer associate with Troutman Pepper Locke and not admitted to practice law in any jurisdiction.