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National renewable energy laboratory (nrel) home page, The only federal laboratory dedicated to research, development, commercialization, and deployment of renewable energy and energy efficiency technologies..
The american solar energy society, leading renewable, Established in 1954, the nonprofit american solar energy society (ases) is the nation’s leading association of solar professionals & advocates..
Energy saving trust, Advice on energy efficiency from the energy saving trust, an independent, government-funded body. includes tips and information and details of grants and offers.
Energy – wikipedia, free encyclopedia, In physics, energy property objects transferred objects converted forms. "ability system perform work" .
Energy star buildings plants | energy star, Energy savings home. improving home’ energy efficiency energy star high energy bills, improve comfort reduce greenhouse gas emissions..
Solar energy – wikipedia, free encyclopedia, Solar energy radiant light heat sun harnessed range -evolving technologies solar heating, photovoltaics, solar thermal.