How Long Do Solar Panels Last Reddit

The general answer for monocrystalline and polycrystalline panels is 25 years.

How long do solar panels last reddit. Polycrystalline silicon panels on the other hand are blue in color. To put your mind at ease studies have proven solar panels can last anywhere between 25 to 30 years or sometimes more. At vivint solar however we work with the best manufacturers and they re so confident in their panels that they offer 25 year warranties. The solar industry estimates an average solar panel lifespan of roughly 25 30 years.

That being said the federal trade commissionestimates that many solar panels last for about 20 years. Chances are if you installed a roof top solar system today it would last longer than your roof. How long do solar panels last. Most solar panel companies will provide a standard 25 year warranty for the expected life expectancy of the solar panels.

Consumers and manufacturers alike are optimistic about solar panel durability because many products are outperforming their warranties such as the world s first. That said these are averages and there are a number of factors that can change this figure such as the technology. Figure out how the panels will fit on your roof with plenty of space around them for access and fire code. Ok now you have the number of panels you want.

The great news is that with proper maintenance your panel may actually run for as long as 40 50 years. According to a photovoltaic degradation rates study published by the national renewable energy laboratory nrel the mean average degradation rate for solar panels is 0 8 per year 25 years to 80 with the median falling to 0 5 and 78 of all installations examined showing less than 1. Remember to do the calculation for an entire year and remember that your first year will be 100 efficiency but that drops a bit over the next ten years to about 80. Especially because your panels will not stop working after 25 years they just won t work as well.

As a general solar industry rule of thumb solar panels last about 25 30 years. Posted in the askscience community. Yes you read that right. Solar panels last about 20 years according to the federal trade commission.

This 2012 study found that solar panels typically degrade in energy output by about 8 each year and technology has only improved since then. 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. However this doesn t mean the panels on your roof will stop producing electricity after a couple of decades. 39 upvotes 18 comments.

You can count on most photovoltaic solar panels to last 25 years before they begin to noticeably degrade. Typical consumer warranties on panels are for 25 years.