How Long Do Solar Panels Last

As a general solar industry rule of thumb solar panels last about 25 30 years however this doesn t mean that they stop producing electricity after 25 years it just means that energy production has declined by what manufacturers consider to be a significant amount.

How long do solar panels last.

But the most effective way to make your solar panels last long is to choose a solar provider that offers a solid warranty. Solar panels do not go bad and very rarely are they faulty or break. Sunpower s 25 year warranty covers the complete solar system even if you decide to install new parts in the future. The warranty typically guarantees panels will work above 80 of their rated efficiency after 25 years.

In reality solar panels can last quite a bit longer than that. The answer to this question depends on two factors. Most solar panels last 25 years with an average annual degradation rate of 50. They also guarantee that the panel power won t fall for more than 8 after 25 years.

When you re considering investing in a solar installation wondering how long home solar panels last is a question that inevitably pops up. Solar inverters and solar batteries will need replacing within the 25 year solar panel lifespan. And with the knowledge that your roof top solar panels will last at least 25 years you can rest assured that your system will eventually pay for itself the only question is how long will it take. 25 years or longer.

Properly maintaining your solar panels will help ensure they last longer. The cost of electricity in your area and whether or not your electric company offers net metering. How long do solar panels last.