The D.C. Circuit threw out a challenge from the Midwest Ozone Group to EPA's Cross-State Air Pollution Rule.

The D.C. Circuit upheld FERC's ruling certifying a Montana solar and storage project as a qualifying facility although it exceeded PURPA's 80-MW limit.

The court upheld a FERC order requiring $11.5 million in refunds from Ameren Illinois after 10 years of misreporting costs.

The D.C. Circuit Court of Appeals vacated FERC’s licensing of the Conowingo Dam on the Susquehanna River in Maryland, ruling in favor of environmental groups.

FERC ordered settlement judge procedures for a 3-year-old dispute between PG&E and the city of San Francisco and over the provision of distribution service.

FERC must better explain its decision to give MISO TOs unilateral authority to finance upgrades needed to interconnect generation, the D.C. Circuit said.

Generators faced skeptical questioning from D.C. Circuit judges in their bid to overturn PJM’s capacity offer cap rules.

PJM stakeholders asked the D.C. Circuit Court of Appeals to require the RTO to exercise more oversight over transmission owners’ end-of-life projects.

ISO-NE will not incorporate an amendment approved by the NEPOOL Participants Committee to include pumped storage resources in its Inventoried Energy Program.

ISO-NE is proposing changes to its winter fuel security plan to answer a court order and account for the swirling global natural gas markets.