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As of March 2013, 29 states, Washington D.C., and 2 territories in the United States have enacted Renewable Portfolio Standards (RPS), which mandate a specific percentage of energy sales to be derived from renewable sources. Additionally, 8 states and 2 territories have set renewable portfolio goals, promoting further transition to clean energy. This overview highlights the adoption and importance of RPS as mechanisms to increase the use of renewable energy, reduce greenhouse gas emissions, and drive sustainable economic growth across the nation.
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Renewable Portfolio Standard Policies.. www.dsireusa.org / March2013. 29 states,+ Washington DC and 2 territories,have Renewable Portfolio Standards (8 states and 2 territories have renewable portfolio goals).