Renewables Portfolio Standard Resources
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, , , , and . "Supporting solar power in renewables portfolio standards: Experience from the United States." Energy Policy 39.7 (2011) 3894–3905.
, , and . "Costs and Benefits of U.S. Renewables Portfolio Standards." International Associaton for Energy Economics Energy Forum Third Quarter 2014 (2014).
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Renewables Portfolio Standards: What Are We Learning?." NARUC Winter Conference Washington, D.C. March 9, 2004 2004.
. "Renewables Portfolio Standards: A Focus on Western States." AWEA Wind Power Finance & Investment Workshop, March 2007, San Francisco, CA 2007.
. "The Renewables Portfolio Standard in Texas: An Early Assessment. Berkeley: LBNL, 2001.
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