Attorneys general from 15 states asked a federal court in D.C. to block the Clean Power Plan.

A top EPA official gave the most detailed hints yet about how the agency will revise the Clean Power Plan when the final rule is released this summer.

The U.S. Supreme Court said Monday it will reconsider the D.C. Circuit Court of Appeals decision threatening the FERC’s authority over demand response.

A federal appeals court Friday threw out the 2013 EPA rule exempting diesel generators providing demand response from air emissions limits.

ISO-NE is considering delaying full integration of demand response into its markets by a year due to uncertainty about FERC’s authority over the resource.

New England power generators asked a federal appeals court to overturn FERC orders that accepted ISO-NE’s change to a sloped demand curve in advance of this year’s Forward Capacity Auction.

The Mercury and Air Toxics Standards at issue before the Supreme Court are the result of a quarter century of legislation, regulation and litigation.

Demand response and advanced meters are continuing to grow but progress is uneven, with some regions showing reductions, according to a new report by FERC.

PJM announced a fallback plan to incorporate demand response into the capacity market in the event a court ruling limiting the jurisdiction of FERC stands.

The MISO Advisory Committee sought stakeholder input on making the most of demand response, and whether the RTO should take any action on FERC Order 745.