| http://www.w3.org/ns/prov#value | - One astute expert predicts there will be no more than ???a couple of dozen??? in 5 years.From USA Today. (click to enelarge)Because solar panels are expensive and are purchased on the assumption they will provide 20-to-25 years or more of service, one of the key factors in a solar energy company???s staying power is its customers??? faith that it will be around to honor its warranties. (See SOLAR
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