Your homes solar panels will be warrantied for BOTH production of energy and mechanical integrity for 25 years. Even after the warranty, the panels will continue to produce electricity only degrading approximately %0.5 per year. So it is possible that after 50 years, your system is producing 75% amount of the electricity it was originally forecast to produce the first year it was installed.
Solar systems are designed to last up to 25 years.
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