How Long Do Solar Panels

The official word from seia solar energy industries association is that the average lifespan of a solar panel is between 20 and 30 years.

How long do solar panels.

To put your mind at ease studies have proven solar panels can last anywhere between 25 to 30 years or sometimes more. For the sake of example if you are getting 5 hours of direct sunlight per day in a sunny state like california you can calculate your solar panel output this way. Key takeaways about the lifetime of solar panels solar panels usually last for 25 to 30 years over their lifetime panels very slowly degrade meaning they may produce less and less electricity high quality equipment makes a difference visit the energysage buyer s guide to compare panels. While solar panels do last a long time and continue to perform at a high level for at least the duration of their warranty it s important to note that some very slight degradation is inevitable.

The general answer for monocrystalline and polycrystalline panels is 25 years. The great news is that with proper maintenance your panel may actually run for as long as 40 50 years. However this doesn t mean the panels on your roof will stop producing electricity after a couple of decades. Solar panels last about 20 years according to the federal trade commission.

Yes you read that right. After your investment is paid off your solar panels will continue to generate clean electricity for free and will continue to do so for as long as your equipment lasts. When you re considering investing in a solar installation wondering how long home solar panels last is a question that inevitably pops up. Luckily the lifespan of solar panels will allow you to produce energy for many years providing a great return on investment.

5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh. Thus the output for each solar panel in your array would. Given that many solar panels and inverters come with 25 year product warranties you can expect more than two decades of trouble free operation from your solar array. Especially because your panels will not stop working after 25 years they just won t work as well.

Polycrystalline silicon panels on the other hand are blue in color. How quickly do solar panels degrade.