Renewable energy solutions are becoming increasingly popular for homes and businesses in the UK as we edge closer to the 2050 net zero target. But because solar is relatively new, it’s not always seen as risky as traditional energy methods like a gas boiler.
Like any system that handles power, solar panels need to be installed, monitored, and maintained properly. Fire safety matters because it protects your home, your family, and your finances. It also helps your solar system run safely and efficiently for years to come.
At Going Green Renewables, fire safety is built into every solar panel system we install, from proper system design to safe installation and ongoing maintenance. In this blog, we explain what really causes solar-related fire risks, how those risks are reduced, and what you can do to keep your system safe.
If you’d like expert advice tailored to your home, contact our friendly team, and we’ll be happy to help.
Are solar PV panels a fire risk?
Any electrical system has fire risks when not properly installed or cared for. Thankfully, when correctly designed and professionally installed, solar PV systems have a very low rate of fire incidents in the UK.
Most fires linked to solar PV systems are not caused by the panels, but by issues elsewhere in the system. These typically include poor installation practices, electrical faults, or damage to components over time.
You can significantly reduce the risk of fire by choosing a certified professional to install your system who will follow national guidance and UK government safety standards.
What causes fires in solar PV installations?
Although rare, fires can happen when certain risk factors come together. It’s important to understand these potential risks to help you decide where to install your solar system and how to avoid problems down the line.
Poor installation practices
One of the biggest contributors to fire risk in solar PV arrays is poor installation, which happens when you don’t use a qualified solar installation team. Loose connections, damaged insulation, badly crimped DC connectors, or DC cables that aren’t routed correctly can all lead to overheating.
Solar PV systems run on direct current (DC), which is different from the electricity used by most household appliances. If DC connectors or isolators aren’t installed properly, heat can build up. It might not be obvious at first, but over time, this buildup of heat can lead to a fault or a fire spreading.
Electrical faults
Electrical faults don’t usually happen straight away. They develop gradually. If components are low-quality or not designed to work together, the risk of electrical faults increases. Key areas to watch out for are inverters, DC isolators, and internal connections.
Problems like loose connections or faults in the wiring can create small pockets where heat builds up, eventually leading to a fire. Thermal runaway is a serious issue that you might not see or notice happening straight away, especially if everything looks fine from the outside.
Combustible roofs
Your roof itself is also part of the full safety picture. Some older homes or commercial buildings use more combustible materials in the roof and insulation (such as timber, felt, and bitumen), which can increase fire risk if a fault occurs in the system.
A well-designed solar PV installation should take this into account from the beginning. Using non-combustible mounting systems, allowing enough space between components, and fixing panels correctly all help reduce heat transfer and limit the chance of fire spreading across the roof.
Read more about what types of roofs solar panels can be installed on.
Debris
You might not think to look around your garden for risks, but environmental factors matter too. Leaves, dust, bird droppings, and other debris can build up around panels, cabling, or inverters, especially on roofs surrounded by trees.
Over time, this build-up can trap heat or damage insulation, reducing your system’s performance or leading to a fire.
How can I reduce fire risk in my solar PV system?
The good news is that there’s a lot you can do to reduce fire risk and protect your solar investment. Most of it comes down to choosing the right installer and looking after your system properly.
Choose professional solar panel installations
Proper installation is the single most important step in reducing fire hazards.
When you work with an experienced, qualified solar installer, you won’t need to worry about what could go wrong. They will follow national guidance and UK regulations for solar PV installations and will have the approved documents in place. This means they’ll work with reputable manufacturers and design systems tailored to your house, and with safety at the forefront.
We’ve got plenty of experience with this, too.
At Going Green Renewables, our installers are accredited under the government-supported Microgeneration Certification Scheme (MCS) NAPIT and are experienced in designing, installing, and maintaining safe, efficient systems.
Install safety devices
Modern solar PV systems include a range of safety features designed to manage risk. These can include DC isolators, surge protection devices, and remote monitoring systems that allow early detection of faults.
Some systems can even shut down sections of the solar PV array automatically if a fault is detected, reducing the risk of fire and making the system safer.
Take care of your solar panels and systems
Even when everything is installed correctly and working as it should, it’s worth checking in on your system from time to time. Regular inspections help spot things like loose connections, damaged cables, debris build-up, or early signs of wear before they become a bigger issue.
By properly caring for your solar panels, you keep generating electricity safely and getting the best performance from them. It’s a win-win.
Maintain clear access to your solar system
There may be times when your solar system needs attention, whether for regular maintenance or emergencies. That’s why it’s important that your roof-mounted panels and internal parts, like the consumer unit, inverter and any battery storage, are easy and safe to reach.
Make sure to trim back trees and greenery so they don’t grow over or around your panels. Inside your home, keep the area around your equipment clean and free of clutter. Clear access allows professionals and, if ever needed, fire and rescue services to inspect, isolate, or turn off the system quickly and safely.
When planning a new installation, it helps to work with an experienced installer who can help you find the safest and most practical spot for your equipment to be installed.
Invest in advanced technology
Choosing the right technology can further reduce fire risk. For example, SolarEdge systems include built-in safety features that significantly reduce the risk of fire.
SolarEdge technology uses optimisers that control voltage at the module level. This means the system can automatically reduce DC voltage when the inverter is shut down or a fault is detected. Lower voltage means lower risk, making the system safer for homeowners and emergency services alike.
This type of advanced technology adds an extra layer of protection and peace of mind.
Looking for safe and professional solar installers? Chat to Going Green Renewables today
Fire safety should never be an afterthought when installing solar panels. We make sure this is always true. With the right design, the best products, and professional installation, solar PV systems remain one of the safest and most reliable ways to generate clean energy.
If you’re considering solar or you’d like your existing system checked, speak to Going Green Renewables today. We make sure your system is designed with fire safety at its core.