Key takeaways
- • Plug-in solar in Great Britain is limited to a maximum output of 800W.
- • Savings depend heavily on how much electricity you use during daylight hours.
- • Permission may be required if you rent, lease or live in a managed building.
Yes, with conditions. Small solar generators are covered by Engineering Recommendation G98, the industry framework for connecting micro-generation up to 16A per phase. What varies is how the system is connected and whether the network operator has been told.
The rules that actually apply
G98 allows a compliant inverter to be connected and then notified to the Distribution Network Operator, usually within 28 days of commissioning. Your electrician normally submits this. Part P of the Building Regulations covers electrical work in dwellings, so fixed wiring work should be done or certified by a competent person.
Why plugging into a socket is a grey area
Standard 13A sockets and plugs are designed for consuming power, not feeding it back. A plug carrying live pins when unplugged is an obvious hazard. Manufacturers who sell into the UK responsibly supply either a dedicated connection unit or clear instructions for an electrician-fitted connection point.
Planning permission
Freestanding and wall-mounted panels on most houses fall within permitted development, subject to size and siting limits. Listed buildings, conservation areas and flats are treated differently, and balcony-mounted panels may need consent from the freeholder or managing agent regardless of planning status.
Practical compliance checklist
- Inverter certified to G98 and marked accordingly
- Notification submitted to your network operator
- Fixed connection by a qualified electrician
- Written permission from the landlord, freeholder or managing agent
- Mounting hardware rated for wind loading at your location
Frequently asked questions
Sources
Fact-check status: reviewed. Read our editorial policy. General information only — not electrical, legal or financial advice.