Investing in solar panels is a brilliant way to cut energy costs, reduce carbon emissions and become more energy independent. But just like any other home system, solar panels benefit from a little upkeep to keep them working at their best.
Whilst solar panels are designed to be low maintenance, a few proactive steps can go a long way in ensuring they continue to operate efficiently for years to come. In this guide, we’ll walk you through some practical tips for solar panel maintenance that will protect your investment and help you get the most out of your system.
Why solar panel maintenance matters
Solar panels are impressively resilient. With no moving parts, they require far less maintenance than many other home energy systems. That said, panels that are clean, properly positioned and regularly checked for faults are likely to perform better and last longer amongst other benefits.
- Maximise energy output
- Protect against unexpected issues
- Extend the lifespan of your system
- Maintain your warranty conditions
Keep your panels clean and clear
One of the most common performance issues with solar panels is dirt or debris build-up. Dust, leaves, bird droppings and even moss can reduce how much sunlight reaches the panel surface. Visually inspect your panels every few months, especially in spring and autumn. Use a soft brush or a hose with gentle water pressure to remove light dust and debris and avoid abrasive materials or high-pressure washers. Consider a professional clean once a year, especially if your panels are on a hard-to-reach or steep roof.
Regularly check for obstructions and shade
Solar panels need direct sunlight to perform optimally. Over time, foliage may grow, or new structures may cast shade on your panels, reducing their output. If there is foliage, there is also a chance of leaves and other objects falling on your panels. You should review your panels’ exposure to sunlight at least once a year, trim overhanging trees or plants that may block the light and consult your installer if new buildings or extensions create lasting shade.
Inspect sealant and mounting points after heavy storms
British weather can throw up some nasty surprises. After strong winds or hailstorms, it’s worth checking for any loosened mounts, degraded sealant or slipped panels. From ground level, you can look for misaligned panels, gaps around the edges and sagging cable runs or exposed wiring. If safe to do so, you can also check the junction box for signs of water ingress.
Monitor system performance
Most solar systems come with a monitoring app or portal that shows how much energy your panels are producing. Regularly checking this data helps you spot any dips in performance or other peculiarities that could signal a problem.
- Unusual drops in energy output (especially in good weather)
- Error messages from your inverter
- Alerts from your monitoring system
Book an annual inspection
Even if everything appears to be running smoothly, a yearly inspection by a qualified technician can help catch potential issues early, such as micro-cracks or weather damage, loose wiring or corrosion and potential inverter malfunctions. This is also a good opportunity to ensure your system is still configured to your energy usage and tariff patterns, particularly if you’ve added an EV or heat pump since your installation.
Maintain solar panel performance with the help of professionals
Maintaining your solar panels doesn’t need to be complicated. A little seasonal care, some monitoring and the occasional professional inspection are often enough to ensure your system continues to deliver clean, low-cost energy for decades.
At Oakray Renewables, we believe your solar system should be as smart, resilient and efficient as your home. That’s why we offer custom solar installations with long-term support built in, from design and installation to monitoring and aftercare.
We also offer a comprehensive maintenance and monitoring service for both new and existing systems because we know your energy system should evolve with your lifestyle. To find out more, download our free guide and keep your panels performing at their best, year after year.
