A D.C. Circuit Court of Appeals disagreed with Hecate Energy that NYISO was charging it unreasonable amounts for interconnection upgrade costs.

An appeals court sent DOE back to the drawing board on an efficiency rule for commercial boilers after complaints the agency failed to comply with the Administrative Procedure Act.

The D.C. Circuit Court of Appeals overturned EPA's hydrofluorocarbon rule after finding the agency exceeded its authority in its enforcement.

FERC approved NYISO’s proposed 17-year amortization period when calculating the annual costs for hypothetical fossil fuel peaker plants.

FERC rejected a request to include pump storage in ISO-NE’s Inventoried Energy Program despite protests that it should be treated like other storage resources.

The fate of 2 Texas LNG developments that had their approvals remanded to FERC drew out some disagreements among the regulators’ two Democrats in recent orders.

Opponents of a gas compressor made a long-shot bid to close the facility in oral arguments that focused on FERC’s handling of environmental justice concerns.

FERC refused to rehear a case in which PG&E and San Francisco have argued for 18 years over distribution service to San Francisco’s public utility customers.

Oral arguments Wednesday on the appeal of FERC’s approval by operation of law of the Southeast Energy Exchange Market focused on the issue of deadlines.

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