What happens to a solar panel after 25 years?

However, experience shows that, in reality, efficiency drops by 6 to 8 percent after 25 years. Therefore, the lifespan of solar panels can be much longer than officially stated. The service life of high-quality photovoltaic panels can even reach 30 to 40 years, and remain functional after, albeit with decreasing efficiency, 24 Mrt.

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