How Long Do Solar Panels Last? 3 Key Things to Know

Did you know that inventor Charles Fritts installed the first solar panel in New York in 1883?

Advancements in technology have pushed solar power to the forefront of today’s green energy transition. And for various reasons, people around the globe are increasingly turning to home solar panels to generate electricity.

They can save you money and are great for the environment, but you’re right to wonder, ‘how long do solar panels last?’ Continue reading for three key pieces of information.

1. They Degrade Over Time

As time passes, solar panels become less efficient at absorbing sunlight and converting it into energy. Different types of solar panels experience different rates of degradation, although most manufacturers offer degradation rates between 0.3 to 1.3%. Better solar panels tend to have a lower degradation rate.

After 25 years, a solar panel with a 0.5% degradation rate will produce approximately 87.5% as much electricity as it did in its first year. Meanwhile, a panel with a 1% degradation rate will produce around 75% of its electricity output 25 years later.

Solar technology continues to evolve, and panels are far more efficient than they were ten years ago.

2. The Average Lifespan is 25 Years

While their longevity has undoubtedly increased, manufacturers today consider an average solar panel lifespan to be around 25-30 years. You may be able to get a warranty for your panels, and this will give you a general idea of their estimated lifespan.

You can keep them for as long as you’re happy with their electricity generation levels. As long as they’re undamaged, solar panels will continue to produce energy for many decades. Their energy output will gradually decline, but they’ll still be able to provide electricity for your home.

Look for a reputable installer, such as Blue Raven Solar, to ensure you’re buying solar panels that will go the mile.

3. Proper Maintenance Can Extend the Lifespan

Although solar panels require minimal maintenance, there are simple things you can do to increase their efficiency and longevity.

It’s important to prevent any kind of physical damage to the panels, keeping them clear of debris, animal droppings, leaves, branches, and snow. Taking care to keep them in good condition will boost their performance and extend their lifespan.

Regular maintenance checks carried out by a professional will ensure your solar panels are running at maximum efficiency. Your installers can provide regular examinations that may reveal issues they can rectify.

A well-maintained solar panel system will lead to a lower degradation rate, thus extending the life of your panels.

How Long Do Solar Panels Last? Wonder No More

Switching to solar is a sustainable way to reduce your energy bills. The panels should last for at least 25 years, but they can last many more if managed and maintained well.

For anything more than a routine hosing down, it’s recommended to contact your solar installer to receive professional assistance.

Did this blog effectively answer the question ‘how long do solar panels last?’ Don’t leave us just yet, because you’ll find lots more informative and helpful articles on our website.