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based Solar Energy Research and Education Foundation, an estimated 6,000-7,000 systems are installed in the United States each year, 4,000-5,000 of those in Hawaii and the rest primarily in California, Florida, and Arizona. Ken Sheinkopf, executive vice-president of the Solar Energy Research and Education Foundation, says there are three main considerations when landscaping for energy-efficiency: your house's orientation to the sun; the amount of shade you'll need; and the intensity and direction of wind around your home. Solar-energy engineers are making progress, says David Meakin of the Solar Energy Research and Education Foundation. |
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