Plug-in Solar Panels Are Coming to UK Shop Shelves: Here’s What’s Changing

From 27 August 2026, a change in UK electrical safety legislation will, for the first time, allow “plug-in” solar panel kits to be sold as genuine self-install products, no electrician required.

What’s changing

Until now, UK wiring regulations (BS 7671) treated any solar setup connected to the mains as a fixed electrical installation, meaning a qualified electrician had to fit it, even for small, low-power kits.

New legislation amends the Plugs and Sockets etc. (Safety) Regulations 1994 and the Electricity Safety, Quality and Continuity Regulations 2002, so that a certified plug-in solar kit can now be connected safely via a standard three-pin socket. In short: buy the kit, plug it in, start generating your own electricity.

To keep things safe, the rules are tightly specified:

Inverter output capped at 800W
Up to four panels, max 2,000W panel capacity
One kit per household
Must connect directly to a wall socket, no extension leads or adaptors
Panels, inverter, cables and plug must be sold and certified as a single package

Major retailers including B&Q, Currys, Lidl, Amazon, Screwfix and Wickes have been working with government ahead of the change and are expected to bring kits to market in September shortly after the law takes effect.

Why it matters for the public

Opens up solar to people who couldn’t access it before; renters, leaseholders and flat-dwellers who don’t own a roof (though permission from a landlord or freeholder may still be needed)
A much lower cost of entry; kits are expected to cost a few hundred pounds, compared with several thousand for a full rooftop installation
No electrician costs or waiting times for a standard self-install
Lower electricity bills by using self-generated power during daylight hours
A possible stepping stone to affordable plug-in battery storage in future

The self-installed kits don’t qualify for Smart Export Guarantee payments (as they require MCS-certified installation), so the savings come from using the electricity yourself rather than selling it back to the grid. Payback periods will vary depending on usage and location.

It’s a small but meaningful step toward making household energy generation accessible to a much wider group of people.