Solar panels, also known as photovoltaic (PV) panels, are one of the most popular and fastest-growing ways to generate renewable energy. But as with any energy source, there are risks that come with their installation and usage. In this article, we look at the potential hazards of solar panels, so you can stay knowledgeable about the risks if you’re looking to install solar panels on your property.
What are solar panels?
Solar panel technology has been used for over 50 years and is now widely accepted as a common and economical on-site renewable energy source. Photovoltaic cells generate direct current (DC) electricity from solar irradiance to generate electricity during daylight hours, even without the need for constant sunshine, and overnight via external lighting sources and moonlight. An inverter is then used to convert the DC to alternating current (AC) electricity.
Fire risks of solar panels
Unfortunately, as with any electrical device, solar panels come with the risk of fire. A number of fires have been caused as a result of poor PV panel installation, using incorrectly specified equipment, faulty equipment, panel faults or electrical system failures. Damage to the PV panel, live electrical cables, connectors and/or junction boxes and inverters can also lead to fires. Gaps between the PV panels and the roof can trap debris such as leaves, which can present an ignition source and fuel load in direct contact.
If a fire were to occur, extensive PV panel roof arrays may restrict firefighters from venting a fire from within a building or tackling a fire within a building. PV panel arrays can also significantly increase the weight loading on a roof, potentially causing it to collapse during a fire.
To reduce the risk of fire, solar panels should not be installed directly on top of combustible roofs. PV panel inverters also need to be enclosed in a secure fire-rated compartment, kept clear of combustibles and provided with fire detection. Ensure that PV panels are located away from dust and fume outlets and are not positioned near to sources of steam or heat.
PV panel power isolation switches should be located in clearly signed areas so firefighters or other emergency personnel can easily access them. You may also consider installing remotely operated controls to manage isolation switches so that they can be operated well away from the area of fire.
Other risks of solar panels
Fire is not the only risk that comes with solar panels. The process of installing the solar panels comes with a host of risks, including the increased risk of damage to the existing roof, which could result in water entering the building.
There is also the risk of storm damage as the wind can enter into the gaps between solar panels and the roof. The wind then lifts the solar panels and throws them from the building, which could result in damage or injury. Additional caution must be taken when installing panels where buildings are located on high ground or in exposed coastal areas. The same gaps can also trap ice and snow during winter, becoming a source of extra weight on the roof which may lead to potential collapse.
As solar panels are electrical devices, you must be aware of the presence of live electrical cables. Direct current electricity is present from the solar panel to the inverter, increasing the risk of electrical shock, injury or death.
If you have recently invested in solar energy for your business, or have it in your future plans, it’s wise to speak to your broker to discuss how it will impact your insurance and what cover you need to stay protected. To find out more, get in touch with your usual advisor.
About the author
Alison Wild BCom (Hons), FMAAT, MATT, Taxation Technician is a highly respected industry professional who has been working with and advising SMEs in areas including tax, pensions, insurance and marketing for over 25 years. She is a Fellow member of the Association of Accounting Technicians (AAT) and Association of Tax Technicians (ATT) and also has 20 years' experience as a residential landlord.
Consistent with our policy when giving comment and advice on a non-specific basis, we cannot assume legal responsibility for the accuracy of any particular statement. In the case of specific problems we recommend that professional advice be sought
