FERC eLibrary: Electric Rate Cases - ChangeBridge

MISO Electric Rate Case Rehearing Order ER26-203

FERC issued Order 195FERC61,009 addressing arguments raised on rehearing in the Midcontinent Independent System Operator electric rate case under docket ER26-203. The order modifies or affirms certain rate determinations based on stakeholder arguments, with implications for transmission rates in the MISO region.

Market-Based Rate Authority for Amber Energy Services

FERC's Office of Energy Market Regulation issued a delegated order accepting Amber Energy Services, LLC's application for market-based rate authority under Docket ER26-1680. The filing was received March 9, 2026, and the order was issued April 3, 2026. This routine authorization permits the company to charge market-based rates for electric energy and related services.

Big Muddy Solar Project - Market-Based Rate Authority Acceptance

FERC Office of Energy Market Regulation issued a delegated order accepting Big Muddy Solar Project, LLC's application for market-based rate authority filed on March 10, 2026. The acceptance includes an accompanying tariff under docket ER26-1695, permitting the solar project to sell electricity at market-based rates in wholesale markets.

Southwestern Public Service Production Rate Template Deficiency

FERC issued a deficiency letter to Southwestern Public Service Company regarding their Production Formula Rate Template filing. The filing dated 02/06/2026 under docket ER26-1281 was found to be deficient, and FERC is requesting additional information to complete the record. The company has 30 days to respond.

Letter order accepts NYISO Yellow Barn Solar interconnection agreement

FERC Office of Energy Market Regulation issued a letter order accepting New York Independent System Operator, Inc.'s filing of an executed Standard Interconnection Agreement with Yellow Barn Solar, LLC under docket ER26-1274. The order was filed and posted on April 3, 2026. This is a standard acceptance of an interconnection agreement for a solar generating facility in New York.

MidAmerican Energy Generation Capacity Change Acceptance

FERC Office of Energy Market Regulation issued a letter order accepting MidAmerican Energy Company's January 31, 2024 notice of change in status reporting the commercial operation of additional generation capacity. The acceptance was issued under delegated authority to multiple affiliated entities including MidAmerican Energy Services, CalEnergy LLC, and Bishop Hill Energy II LLC.