The two solar panels and shingles have extensive life spans, commonly upwards of twenty years. However, the longevity of solar shingles varies with the producer plus the set up. Warranties also differ; when you buy solar shingles, be sure that you note the distinction between electric power warranties. (Bloomberg) -- https://solarrooftop39370.free-blogz.com/59600246/solar-rooftop-things-to-know-before-you-buy