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<http://schema.org/text>
"On average, the lifespan of solar panels is about 25 to 30 years. Some even last up to 50 years, but their efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher level of energy production."
<https://www.ecowatch.com/solar/panel-cost/ny/smithtown>