Researchers at Lawrence Berkeley National Lab found that on average, homeowners who install solar panels recouped most or all of their investment when they sold their property. "A house that has a PV system compared to a house that doesn't have a PV system is expected to sell more," said Ben Heon, the lead researcher on the study. "This is for systems that are relatively new - between 1.5 to 2.5 years old." [KQED/photo via NPS]
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