On September 28, 2017, the U.S. Department of Energy released a Notice of Proposed Rulemaking (NOPR) directing the Federal Energy Regulatory Commission (FERC) to issue a final rule on grid reliability and resilience pricing. Under the proposal, FERC will “impose rules on Commission-approved independent system operators (ISOs) and regional transmission organizations (RTOs) to ensure that certain reliability and resilience attributes of electric generation resources are fully valued.” A letter from the Secretary of Energy to FERC’s commissioners accompanied the NOPR.