Requires the Department of Environment and Natural Resources (DENR) to develop a State Plan for compliance with the Environmental Protection Agency (EPA) Clean Power Plan in compliance with the requirements of the Environmental Protection Agency's regulation of carbon dioxide emissions for existing stationary sources. Specifies 11 actions that must be taken in developing the State Plan, including establishing a State Plan Advisory Board to assist in developing the State Plan, holding at least three public hearings no later than February 1, 2016, and prioritizing the components of the State Plan based on a least-cost compliance approach to benefit the state's retail electric power customers. Requires an interim report on the State Plan to the Environmental Review Commission by October 1, 2015, and January 1, 2016. Requires DENR to provide a final report to the Environmental Review Commission by April 1, 2016. Provides that the State Plan has no legal effect if the EPA fails to issue or withdraws the EPA Clean Power Plan or a court invalidates the EPA Clean Power Plan.