U.S. Department of Energy - Energy Efficiency and Renewable Energy
Energy Savers
Solar Energy Applications for Farms and Ranches Reading List
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Electricity When and Where You Need It: From the Sun (PDF 5.93 MB). (January 1997). NREL/BR-412-21732. Golden, CO: National Renewable Energy Laboratory. 28 pp.
Sow Solar Farrowing House (PDF 399 KB). Midwest Plan Service.