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.

FERC yesterday asked the Supreme Court to overturn an appellate court ruling voiding its authority to demand response in RTOs, a day after PJM filed a contingency plan for including DR in its upcoming capacity auction.

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.

PJM officials are seeking to postpone generation retirements — or accelerate planned new generation — to help the RTO ride through potential shortages next winter.

The electric and natural gas industries remain divided over the start of the gas day, nine months after FERC proposed changing the start time from 9 a.m. CT to 4 a.m. CT.

U.S. Solicitor General Donald Verrilli said he will ask the Supreme Court to review an appellate court ruling voiding the FERC’s authority over DR in wholesale energy markets.

The New England Power Generators Association asked FERC Nov. 14 to order ISO-NE to exclude demand response from the Forward Capacity Market.

Company executives say they are confident that DR will continue to grow despite the EPSA ruling that threatens its continued participation in PJM.