What is the service life of photovoltaic panels? How to extend the service life of photovoltaic systems? These should be a few issues that people who have installed photovoltaic panels or have the idea of installing photovoltaic panels are very concerned about.

Firstly, the design lifespan of photovoltaic power plants is generally 25 years, but this is not entirely accurate. The actual service life depends on the situation of the photovoltaic power plant itself. And the service life does not mean that it cannot work after 25 years, it can only be said that as the usage time increases, the power generation efficiency will decrease. A study has found that solar cells generally reduce their power generation by 0.5% annually as their usage time increases, but they can still be used. Photovoltaic modules are originally designed to work from sunrise to sunset, with a long history of development and mature technology. Just like China's earliest photovoltaic power station, which was put into use in Lanzhou, Gansu Province in 1983, it is still generating electricity continuously. After 40 years of use, its power has only decreased by 16%, and the most severely attenuated photovoltaic module is less than 20%, which far exceeds its service life of 25 years. However, this power station can still be connected to the grid and even continue to be used in the future.

So how to extend the service life of photovoltaic systems is particularly important. Firstly, when it comes to the selection of solar panels, it is important to choose reliable big brands with quality and after-sales guarantees. Secondly, after installation, one should have good daily maintenance and cleaning of the solar panels, keeping them clean and tidy. If they cannot complete it themselves, they can also try to hire professional maintenance and after-sales personnel to reduce daily wear and tear on the solar panels. Another approach is to reduce the use in extreme environments, as these methods can extend the lifespan of photovoltaic systems.

And it's just that the general photovoltaic module has a 25 year warranty, which doesn't mean it's scrapped or unable to generate electricity. It just means that after 25 years, the power generation will decrease. As long as it's not artificially damaged, it will continue to generate electricity, and the right to use it after installation is also in our own hands.