FERC approved PJM’s proposed rules for implementing restrictions imposed on energy efficiency resources by state or local regulators.

FERC claimed “exclusive authority” over the participation of energy efficiency in wholesale markets but preserved a carveout for Kentucky utilities.

Environmentalists last week urged FERC to decide whether states can control participation of energy efficiency resources in RTOs.

The OMS voted to lodge a protest in an ongoing dispute over whether states can prohibit energy efficiency resources from entering RTO markets.