What happens to solar panels after 20 years?

What happens to solar panels after 20 years?

Solar panels usually come with a warranty of 20 years. This is the time that photovoltaic solar cells will likely start to slightly degrade and lose their ability to produce electricity as efficiently as before.

Though, after 20 years it is predicted that the average output energy generated from your solar panel cells will have only reduced by roughly 20%, which is 1% per year (depending on the manufacturer).

Solar panel manufacturers are looking into the production process to find ways of extending the lifespan of your panels’ output, as well as making them more efficient in order to make your investment last longer.

Even after 20 years, your solar energy will still be reliable!