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Rooftop solar could generate 38% of the US electrical energy. http://www.nrel.gov/docs/fy16osti/65298.pdf http://www.nrel.gov/docs/fy16osti/65298.pdf
by ju-st 11y ago
Rooftop solar could generate 38% of the US electrical energy. http://www.nrel.gov/docs/fy16osti/65298.pdf http://www.nrel.gov/docs/fy16osti/65298.pdf