In May 2017, the U.S. Energy Information Administration, or EIA, released a daily energy brief noting U.S. nuclear capacity and generation is expected to decline as existing generators retire. Five nuclear plants, with a combined capacity of 5,000 megawatts, or MW, have retired in the past four years, primarily due to competition from low-cost natural gas, unfavorable market policies, and/or local opposition. The Three Mile Island generating station in Pennsylvania is the latest nuclear power plant to announce retirement plans. In addition to these recent retirements, six other plants are scheduled to retire in the next nine years.