U.S. Department of Energy
http://www.eere.energy.gov

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Department of Renewable Energy
http://energy.gov/renewable-energy

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Office of Indian Energy Policy and Programs
http://energy.gov/indianenergy

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​National Renewable Energy Laboratory
http://www.nrel.gov/

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Database of State Incentives for Renewable Energy
http://www.dsireusa.org

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Science Daily - Renewable Energy
https://www.sciencedaily.com

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Bloomberg New Energy Finance
https://about.bnef.com

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Sandia National Laboratories
http://energy.sandia.gov

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Power of Wind
http://www.powerofwind.org

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Solar Energy Industries Association
http://www.seia.org

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Institute for Energy Research
​http://instituteforenergyresearch.org

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International Journal of Renewable Energy
http://www.ijrer.org

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Renewable Energy World
http://www.renewableenergyworld.com

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Union of Concerned Scientists
http://www.ucsusa.org/clean_energy

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GTM Research / SEIA U.S. Solar Market Insight

GHI Solar Map © 2016 Solargis

AWS Truepower, LLC. Developed by NREL and Wind Energy Resource Atlas of the United States