Grand River Dam Authority (GRDA); operators of an Oklahoma coal-fired generator seeking a temporary reprieve from EPA's MATS rule won an assist from FERC.

SPP’s next 10-year transmission plan will consider three future scenarios to assess the potential impact of EPA’s Clean Power Plan.

SPP could comply with the EPA’s Clean Power Plan through a $45/ton carbon adder and 7.8 GW of additional generation, most of it wind, the RTO said.

Stakeholders from MISO and SPP they are developing the framework for an interstate trading platform to comply with the EPA Clean Power Plan.

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

AEP and FirstEnergy's plans to shut down coal-fired generation under the EPA’s MATS won't change even if the Supreme Court throws out the standards.

The Supreme Court’s ideological divide was on display Wednesday as justices sparred with attorneys over whether the EPA should have considered costs before deciding whether to regulate mercury and other pollutants from power plants.

FERC said it is trying to craft the its role in administering a “safety valve” to ensure reliability is not threatened by the EPA's Clean Power Plan.

Witnesses from the Southeast generally expressed far more concern than their counterparts in the Northeast during FERC’s technical conference on the EPA Clean Power Plan.

The Senate Environment and Public Works Committee, chaired by Jim Inhofe, heard criticism and praise of the EPA's Clean Power Plan from state officials.