At an open meeting on June 18, 2026, the Federal Energy Regulatory Commission (FERC) issued show-cause orders under Section 206 of the Federal Power Act to the six FERC-jurisdictional RTOs/ISOs—PJM Interconnection, ISO New England, Midcontinent Independent System Operator, Southwest Power Pool, New York Independent System Operator and California Independent System Operator—along with their transmission owners (TOs), directing each region and the TOs to justify or revise tariff provisions governing how data centers and other large loads connect to and receive transmission service from the grid. These show-cause orders will impact several power markets across the country, including California.
