A Retrospective Analysis of the Benefits and Impacts of U.S. Renewable Portfolio Standards

This report retrospectively examines the costs, benefits, and other impacts of all state renewable portfolio standards (RPS). The study finds that meeting RPS compliance reduces greenhouse gas emissions, air pollutant emissions (sulfur dioxide, nitrogen oxides, and particulate matter), and water use. These reductions equate to $7.4 billion in benefits. Other economic impacts include jobs growth and price reductions for wholesale electricity and natural gas.