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To install do-it-yourself storm windows, attach foam weatherstripping around the frame to seal against the ­window opening and to hold it in place.
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Geothermal systems use underground coils filled with water or a special solution that work with a heat pump unit to heat and cool a home or business.
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Bucket Trucks at sunset Source Dave Behle Dawson Public Power District 2007
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The T-Bar M Dairy Ranch, outside of Durant, Okla., normally uses 250-W metal halide lights in its barns. CRN exchanged those bulbs in 10 fixtures with 120-W LEDs. After six months, the dairy had cut energy use by 55 percent and boosted brightness by 30 percent. Source: Cooperative Research Network
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