Why isn’t surge protection on my other quotes?

Usually one of two reasons. Either it has been left off to keep the headline price down — in which case you’d be asked to sign a declaration before the work went ahead — or the installer believes the inverter or battery has already provided surge protection (not the case).

The second is the more common and the more understandable. Many inverters and battery systems do contain varistors on the DC side, and it looks like protection. BS 7671 is explicit that it isn’t: “Varistors included in the inverter are not considered as SPDs.” Devices built into an inverter only count if the manufacturer has specifically stated they’re suitable for protecting the DC side of a PV installation — and if they haven’t, external SPDs are required.

Aaron Cox - Marketing Assistant

After years of honing their craft in various marketing sectors, Aaron decided it was time to put those skills toward a more meaningful goal. Since joining Naked Solar in 2023, he has been dedicated to the company’s purpose of improving faith in the solar industry.

As a Plymouth University graduate and a parent, Aaron understands the importance of creating a greener future for the next generation. He is passionate about using their marketing background to cut through the noise, helping newcomers understand the benefits of solar energy.