How long do solar panels last?

Solar energy has quickly become the preferred choice for those looking to transition to a cleaner energy source. It’s quite logical: solar power is eco-friendly, renewable, and can be harnessed right at home, offering significant benefits both for the planet and your wallet. It’s no surprise that so many people have embraced solar power. One common question we often receive from customers is a simple yet crucial one—how long do solar panels actually last?

One of the appealing aspects of solar energy is the potential for accumulating savings over time. Essentially, the longer your solar panels are installed and producing power, the greater your savings will grow, eventually helping you recoup your initial investment. Naturally, this raises the question: ‘How long do solar panels last?’ Having a clear answer to this question makes calculating savings and returns much simpler and more precise.

So, how long do solar panels last?

Research indicates that solar panels typically last between 25 and 30 years. This is great news for anyone worried about the durability of their solar system. Even better, the panels won’t suddenly stop working after several decades. They will continue to generate electricity for many years beyond that, though at a reduced efficiency compared to their optimal performance period. When we say solar panels last 25 to 30 years, we mean they operate at their peak during this time frame.

What impacts the lifespan of solar panels?

All solar panels have what’s called a ‘degradation rate,’ which refers to how quickly the panels lose efficiency and output over time. Fortunately, with modern solar panels like those used in Project Solar UK installations, this degradation rate is minimal, averaging around 0.2 to 0.3% per year. This means that even after many years, these panels retain most of their original capacity, safeguarding your investment for years to come. So if you're wondering about the longevity of these specific panels, the answer is—they last a very long time. Today’s solar panels can still produce more than 95% of their original capacity even after 25 to 30 years.

Can you extend the life of your solar panels?

If you’re pondering how long solar panels last, you might also be curious about whether there’s anything you can do to extend their lifespan. In short, choosing a reputable solar installer who uses top-notch materials and sets everything up for maximum efficiency is key. Poorly constructed systems using low-quality components—such as subpar panels or inferior inverters—won’t last as long as well-built solar setups using high-quality parts. Be sure to read reviews and ask plenty of questions about the products and setup process when selecting a solar provider. All of our installations feature SunPower Maxeon solar panels, renowned for their efficiency and longevity. We also incorporate advanced inverters in our systems, ensuring the overall setup doesn’t hinder the panels’ lifespan.

Additionally, keeping an eye on your solar panel performance is essential. Regular monitoring helps ensure your system delivers the expected output and identifies any anomalies early. Choosing a solar company that offers app-based monitoring simplifies this process, allowing you to track your system via a smartphone or computer. Analytics can pinpoint any issues, enabling timely repairs and maintenance. Addressing problems promptly is crucial for maintaining the long-term functionality of your solar panels.

Like any system, routine maintenance plays a role in extending the life of your solar panels. Keeping them free from debris and other harmful elements is vital. During installation, we ensure your panels aren’t placed beneath overhanging branches or other hazards that could damage them. Over time, leaves and other materials may accumulate on the roof, so regular cleaning ensures optimal performance and prolongs the panels' useful life.

Get expert guidance today

Beyond the question of how long solar panels last, you probably have other concerns regarding your solar installation. Reach out to the experts at Project Solar UK for advice on choosing the right solar panels, optimizing their placement, and determining the number needed to meet your household energy requirements. We take pride in our customer-centric approach, prioritizing your needs above all else. Our glowing feedback and five-star TrustPilot reviews highlight why we’re considered the nation’s premier solar company. For a no-pressure consultation and more information about solar power, contact us today using the provided details.