How Long Do Solar Panels Really Last

However this doesn t mean the panels on your roof will stop producing electricity after a couple of decades.

How long do solar panels really last. That being said generally the timeframe for solar panels is between 25 to 30 years. In reality solar panels can last quite a bit longer than that. The batteries in solar lights typically last for 2 years before they have to be replaced as they are no longer able to hold enough energy to provide lighting. The truth is solar panels are designed to last a long time up to 40 years based on recent research which is probably longer than you ll live in your current home.

A study by nrel shows that the majority of panels still produce energy after 25 years albeit at slightly reduced output. The warranty typically guarantees panels will work above 80 of their rated efficiency after 25 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. Solar panels do not go bad and very rarely are they faulty or break.

Some manufacturers extend their warranties for 20 years while others will do so for the full 30 years. 2 humid continental climate boston ma. To put your mind at ease studies have proven solar panels can last anywhere between 25 to 30 years or sometimes more. Next we ll take a look at how to tell if your solar power system is giving you the most bang for your buck.

As a general solar industry rule of thumb solar panels last about 25 30 years. Sunlight that reaches the solar panels generates electricity that is stored into the solar light batteries and is used once it is dark outside. Wells solar offers a 25 year warranty on residential solar panel installations in texas so your system will pay for itself time and again. Crystalline silicon panels in the region around atlanta show an average degradation rate of around 0 7 per year compared to 1 33 for amorphous panels.

Solar inverters and solar batteries will need replacing within the 25 year solar panel lifespan. 1 however this doesn t mean the panels on your roof will stop producing electricity after a couple of decades. If it s a good one it ll be returning your investment with gusto in no time. This gives a theoretical lifespan of 28 years for crystalline panels but only 15 years for amorphous panels.

Investing in solar energy is a long term commitment. To put your mind at ease studies have proven solar panels can last anywhere between 25 to 30 years or sometimes more. Properly maintaining your solar panels will help ensure they last longer.