More than 72 gigawatts (GW) of electrical generating capacity have already, or are now set to retire because of the Environmental Protection Agency’s (EPA) regulations. The regulations causing these closures include the Mercury and Air Toxics Standards (colloquially called MATS, or Utility MACT)[1], proposed Cross State Air Pollution Rule (CSAPR)[2], and the proposed regulation of carbon dioxide emissions from existing power plants.
