Solar panel degradation

Do Solar Panels Degrade Over Time?

December 10, 2023

Solar panels are a great investment for your home. With the money you save on utilities and the tax incentives you get, you end up making back the initial installation cost within a few years. However, like any major piece of technology, like a car or a stove, you want your solar panels to last for a long time. So you might be wondering about the longevity of solar panels and whether they degrade over time.

High-Quality Solar Panels Degrade Slowly

Solar panels do degrade over time, meaning that they produce less electricity from the same amount of sunlight. This is mostly due to external factors wearing down the photovoltaic cells. As time and weather bear down on them, microcracks in the silicon cells form, which causes the electrical connections to deteriorate. When these connections deteriorate, electricity has fewer pathways to take to get into your home.

However, high-quality solar panels take longer for degradation to occur. Most commercial solar panels last between 25-30 years. SunPower solar panels have the lowest degradation rate in the industry (0.25%) and last 30% longer than our competitors’. This is because the technology they utilize captures more sunlight, is more durable, and more efficient than other solar panels in the industry. Because of this, they are more resistant to the microcracks and electrical degradation that comes from time and harsh New England weather.

SunPower Uses Highly-Efficient Solar Technology

On top of lasting 30% longer, SunPower solar panels are 30% more efficient than other solar panels. This means that even when the solar cells start to degrade, your solar panels are still producing more electricity than others’. Within the first five years, SunPower solar panels produce 47,508 kilowatt hours, while conventional solar panels produce 37,091 kilowatt hours.

No Moving Parts Means No Wear-and-Tear

Solar panels are more than just their photovoltaic cells, however. Even if the cells are high-quality and degrade slowly, what about the other parts? Will the roof mount, frame, inverter, and other mechanical pieces suffer from wear-and-tear? Luckily, no.

Solar panels don’t have any moving parts. During installation they are positioned to get the most sunlight possible. This means that you don’t have to worry about grinding gears or other mechanical bits wearing down from time and use.

Solar panels have no moving parts so they are resistant to wear and tear

Best-In-Class Warranty

If you’re still concerned about solar panel degradation, you should go with SunPower by BlueSel. This is because we offer a best-in-class 25-year warranty. This comprehensive warranty covers power production as well as the panels, micro inverters, and racking. On top of that, we also offer a 10-year warranty on workmanship. So if you experience any issues within 25 years of purchasing your solar panels, we’ll resolve the issue.

Solar panels do degrade, but when you go with SunPower, you get solar panels that outlast the competition. With a low degradation rate, great warranty, and high efficiency, you can be confident that your panels will produce more energy than any other system for years to come.