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How long do solar panels last?

Photovoltaic solar panels are designed to be very simple and durable.

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But over the years,
can cause some wear and tear.

  

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Still, most panels are guaranteed to produce at least 80 of their rated power after 25 years.

  

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Which means they’ll be around long after they’ve paid back their initial cost.

  

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The 25-year “useful life” of solar panels, has been the benchmark for decades, but recent studies* of modern panels show it should be closer to 35 years.

*DNV-GL 2016, NREL 2012

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Major manufacturer solar panel efficiency.

 

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Solar Payback & Cumulative Savings 35 vs. 25 years

  

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So 35 years of production (instead of 25) means 40 more energy for the average U.S. home, increasing the profit from an investment in solar by $18,000.

  

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How much money
will solar save you?