How Long Do Solar Panels Last? Solar Panel
As of 2025, understanding solar panel degradation remains crucial when investing in solar, even as industry strides extend panel
After 25 years, your solar panels won't necessarily need to be replaced; however, their ability to absorb sunlight will be reduced. In this blog, we'll explain how long solar panels last, review solar panel degradation rates, and ways to make sure your solar panels last as long as possible.
Real-world data shows many solar panels continue producing electricity for 40+ years, albeit at reduced capacity. A 2021 NREL study tracking thousands of installations found panels from the 1980s still generating power, though at 60-70% of original output.
Solar panels are generally very durable. Most solar panels are designed and tested to withstand the elements like hail, high winds, and heavy snow loads. And thanks to their lack of moving parts, solar panel systems usually require little to no maintenance. Still, maintaining your solar panels can boost production.
The bad news is that many solar panels end up in landfills. The good news is that solar panel recycling processes are becoming more robust and viable as technology advances. Depending on what kind of shape they're in, solar panels can also be reused or refurbished to continue generating electricity for other applications.
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