Staff White Paper on Guidance Principles for Clean Power Plan Modeling Docket No. AD16-14-000

On August 3, 2015, the U.S. Environmental Protection Agency (EPA) issued the Clean Power Plan (CPP) under Clean Air Act 111(d). The CPP limits carbon dioxide emissions from existing fossil fuel-fired electric power plants by providing state specific goals for carbon dioxide emissions from affected electric generating units. As part of the CPP, EPA considered the potential impacts of the CPP on electric system reliability. Specifically, the CPP requires each state to demonstrate in its final state plan submittal that it has considered reliability issues in developing its plan. Separately, on August 3, 2015, EPA, the U.S. Department of Energy (DOE) and the Commission agreed to coordinate certain activities to help ensure continued reliable electricity generation and transmission during the implementation of the CPP.