Think of your solar array as a 25-year investment. Solar panels will produce electricity for at least 25 years. (See “Do systems come with warranties?” question for information on the warranties you’ll receive with your system) Panels will continue to generate electricity after 25 years, but at a decreasing rate. While microinverters will likely last for the duration of the PV system, you may need to replace central inverters after 15 years.
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