Plug-in solar · The rules
Is plug-in solar legal in the UK?
Yes in England, Scotland and Wales — if the device is approved. Here’s what the rules allow, what they don’t, and how to check before you buy.
By Mike · Updated 5 October 2026 · 5 min read
Is plug-in solar legal?
Yes — in England, Scotland and Wales, as long as the device is approved.
Plug-in solar became legal to buy and use in Great Britain on 27 August 2026, when new regulations came into force. Before then, the government said these products couldn’t be sold or used lawfully.
The key condition is the device itself. It has to meet the government’s plug-in solar product specification — only devices that do can be sold and plugged in under the new rules.
What keeps it legal
An approved device
Solar only — no battery
Up to 800VA
One per household
Registered with your network operator
● Allowed
What the rules allow
A solar-only kit that plugs into a suitable standard wall socket.
A device that meets the government’s product specification and is listed as compliant on the ENA register.
Maximum apparent power of 800VA, connected through the kit’s own plug.
One device per household, under current network rules.
Setting it up yourself — approved devices are designed to be installed by householders.
Mounting it in a garden, on a wall or fence, or on some balconies, where the manufacturer’s instructions allow. Some surfaces and buildings are ruled out (see “What isn’t covered”), and in England, fixing it to a wooden fence, gate or wall needs planning permission.
● Outside the rules
What isn’t covered
The new route is deliberately narrow.
Kits that aren’t approved, wherever they’re sold.
Plug-in batteries, and solar kits with a built-in battery.
More than one device in a household, or a device that can supply more than 800VA to your home — though the panels themselves can add up to 2,000W.
Plugging in through an extension lead or adaptor — approved kits must carry a warning against it.
Fitting a kit to a timber balcony, to timber cladding, or to certain other cladding panels: aluminium or metal composite (ACM, MCM) and high-pressure laminate (HPL).
Fitting a kit to a building that’s having, or is due to have, outside-wall or building-safety repair work (often called remediation), or that has fire-safety restrictions on its outside walls.
Fixing panels to a wall, or any other part of the building, that divides your home from next door’s. The rules make that your responsibility to avoid.
Northern Ireland, which has separate connection requirements.
What changed in 2026
Two safety laws, one narrow new route
Two sets of safety regulations used to stand in the way. One didn’t allow approval of a plug used to connect a generating device to a socket. The other sets conditions for anything that generates electricity alongside the grid.
A new law, SI 2026/848, changed both from 27 August 2026. Plugs for plug-in solar can now be approved, and a plug-in solar device can be installed and used as long as it meets the Plug-in Solar Device Interim Product Specification, which the government published in July 2026.
The specification is an interim standard. The government has said work will begin on longer-term standards to replace it, so the details may change.
Before you buy and install
How to stay within the rules
01
Check the device is approved
It should be listed as compliant on the ENA register — a device that’s only been submitted doesn’t count. Our Compare page shows each system’s current status.
02
Get any permissions you need
Renters, leaseholders and people in managed buildings may need consent from a landlord, freeholder or managing agent. Some installations need planning permission or listed building consent.
03
Check your home’s wiring
Follow the manufacturer’s instructions on the protection your fuse box needs. If it’s an older fuse box, or you’re unsure, ask a qualified electrician first.
04
Plug it straight into a wall socket
No extension leads or adaptors, and only one device in your home.
05
Register it
You must notify your distribution network operator (DNO) when you connect a compliant plug-in solar device. Follow the current registration process linked from the product instructions. How to register.
Good to know
Common questions
Was plug-in solar illegal before?
Yes. Before 27 August 2026, the government said plug-in solar products couldn’t be sold or used lawfully in the UK, because they didn’t comply with the plug and electrical safety regulations.
Can I use a kit I bought before the rules changed?
Only if that exact device meets the specification and is listed as compliant on the ENA register. Check its make and model before you plug it in.
Can I use a plug-in battery?
Not under these rules. The new route covers solar-only devices. Plug-in batteries, and solar kits with a built-in battery, are outside it.
Do I need an electrician?
A compliant plug-in solar device is designed for household installation, so an electrician isn’t automatically required. If your electrical installation needs modifying, has older fuse protection, or you’re unsure whether the wiring or socket is suitable, use a qualified electrician. Our guide to sockets, fuse boxes and when you need an electrician has the detail.
I rent or live in a flat. Can I use one?
Possibly, but check first. You may need permission from your landlord, freeholder or managing agent. Follow the manufacturer’s mounting instructions and get any permission you need from your landlord, freeholder or managing agent.
Will it affect my insurance?
It might. The specification says you’re responsible for checking, before you install, whether it affects your home insurance — and any insurance covering the building.
What about Northern Ireland?
The legal changes that allow plug-in solar to be connected apply to England, Scotland and Wales. Northern Ireland has separate connection requirements under G98/NI, and the government says how its product specification applies there is still under consideration. Check with NIE Networks before buying or connecting a system.
Sources
Where this information comes from
legislation.gov.uk · the law that made plug-in solar legal, in force from 27 August 2026.
Electricity Safety, Quality and Continuity Regulations 2002, regulation 22
legislation.gov.uk · the conditions for connecting a plug-in solar device, as amended.
Plug-in solar: Regulatory amendment and interim product specification
GOV.UK · Department for Energy Security and Net Zero. The government response, July 2026.
Plug-in Solar Device Interim Product Specification, version 2.0
GOV.UK · the specification an approved device must meet, July 2026 (PDF).
Households can save as plug-in solar panels come to market
GOV.UK press release, 26 August 2026.
Sources checked 5 October 2026.
Related questions
After you buy
Do I need to register plug-in solar? →
Who registers what, and how the official process works.
The straight answer
Is plug-in solar worth it in the UK? →
When it makes sense, when it doesn’t, and what to check.
Before you buy
Check a system is on the approved list
WattVerdict checks every system we track against the official register daily. See which are listed as compliant, and compare prices where we’ve verified them.