The ERCOT Board of Directors approved extending an RMR contract with NRG Energy for its Greens Bayou Unit 5 plant in the Houston area.

ERCOT said it has executed a reliability-must-run agreement to keep NRG's Greens Bayou 371-MW natural gas-fired generator available through September.

FERC told NYISO that proposed changes to its rules for reliability-must-run generators were inconsistent with Order 1000 and improperly delegated authority.

The New York PSC said FERC should reject the proposal made by NRG Energy to keep the 380-MW Huntley plant in Tonawanda operating.

Transmission upgrades dominated activity in the NYISO footprint in 2015 and promise to occupy headlines in 2016.

NRG said that it may only need to continue operating one of the two units at the Huntley plant.

The NYPSC had argued that it had sole jurisdiction over the rates and terms of an RSSA it had ordered between Exelon’s troubled R.E. Ginna nuclear plant and Rochester Gas & Electric.

Efforts to keep the Ginna nuclear plant operating has spurred a turf war between federal and state regulators who are conducting independent reviews.

The NYPSC says the FERC’s recent order on reliability-must-run agreements “interferes” with state authority as it tries to address generation shortages in the state.

FERC last week ordered hearing and settlement procedures in a dispute over the costs of keeping NRG’s Dunkirk generating plant online for reliability.