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How Long Do Solar Panels Last?
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How Long Do Solar Panels Last?

If you’re considering installing solar panels for the first time, you’ll probably want to know how long they’re going to last before spending your hard-earned cash.

In this post we will explore the average lifespan of a modern solar panel, how to extend it and whether or not they’re worth the investment.

How long will my solar panels last?

On average, solar panels typically last around 25-30 years. However, it’s thought that the latest models on the market could give you over 40 years’ worth of energy, provided they are installed correctly and well maintained.

While solar panels work most effectively during the first 20-25 years, bear in mind that they don’t just stop producing energy after this time. In fact, there could still be a lot of life left in them!

A study by the National Renewable Energy Laboratory found that the average degradation rate of a modern solar panel is only 0.5% per year. That means that even after 20 years, your solar panels could still be working at well over 80% efficiency.

So, unless you see your electricity bills rise significantly during time, your panels should last several decades. That’s great news as the initial outlay will have been covered at around the 10 year mark.

Factors affecting lifespan

There are several factors that could affect how long your solar panels last.  Firstly, the weather. Extremely hot or cold temperatures can lead to cracks in the cells, causing the electrical components to deteriorate much faster. You therefore need to choose your panel type carefully.

Secondly, you should avoid placing your solar panels near anything that could potentially cause damage. For instance, don’t position them under tree branches which could fall in high winds.

Thirdly, and most importantly, is the quality of both the solar panel and its installer. While it may be tempting to choose the cheapest option, this won’t benefit you in the long run. With low quality panels you’re unlikely to get the results you want and if they’re not connected properly, your home’s electrical system could be affected.

Extending the life of your solar panels

First and foremost, you need to find a trusted supplier and fitter to install them. At NBEC, we have been installing quality solar panels across Yorkshire for almost 10 years and all of our installations are carried out by MSC approved technicians to ensure high standards are met.

Once installed, you should check the output of your panels regularly to make sure they’re producing the amount of energy you’d expect. This can help detect any issues early on.

And while solar panels are relatively low maintenance, you should aim to clean them twice a year and check for any physical damage. This way, cracks or loose seals can be repaired before bigger problems develop.

Why choose NBEC?

Ready to reduce your energy bills and go greener? At NBEC, we supply a range of solar panels tailored to your individual home and energy usage. For added piece of mind, all of our devices also come with an insurance-backed warranty and a 20-year guarantee as standard.

Contact us today on 0800 292 2343 for a free no-obligation quote and to learn more about how we can help improve your home’s efficiency.


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