The industry standard for panel life is tied to a performance threshold of about 80% of original output. That's what most manufacturers define as the end of a panel's “useful life. ” This is not because the technology fails, but because energy production, and, by extension, savings.
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Solar panels in Canada are warranted for 25 to 30 years, indicating their minimum expected lifespan. With proper maintenance and ideal conditions, some systems have been known to last even longer, up to 35 years or more. Can solar panels last beyond their warranty period?.
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The life of the inverter is determined by the shortest life components, usually IGBTs, capacitors, inductors, etc., and the service life is generally not more than 10 years.
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Solar panels generally come with two warranties: The product warranty covers the equipment and typically guarantees at least 10-12 years without fail, and the power or performance warranty often guarantees at least 90% production at 10 years and 80% at 25 years.
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