People ask us whether the electricity company can refuse. For a device this size, in Great Britain, that is not the shape of the arrangement.
Connection is governed by Engineering Recommendation G98. The change that admitted plug-in solar was raised by the Energy Networks Association on 1 April 2026, approved by the Authority in an Ofgem decision dated 11 August 2026, and took effect when the product regulations did on 27 August 2026.
What it asks of a consumer is set out in the department's final stage impact assessment: registration of product use with distribution network operators in Great Britain, which it expects to be "a simple process which taking around 5 to 10 minutes to complete", by completing "a short online form" within 28 days of installation, giving name, email address and installation address.
An impact assessment describes the process government intended, so treat this as what you are asked to do rather than as a deadline with a penalty attached. The substance is settled: three pieces of information, after the fact, within four weeks.
The G98 change restricts plug-in solar to one device per household. That is tighter than the product specification's own rule of one per final ring circuit, and it is the one to plan around. Two kits on a London flat is not a route to twice the output.
Great Britain is divided into fourteen distribution licence areas. Our working map puts London in one of them, and we are saying plainly that it is a working map.
| Item | What we hold |
|---|---|
| Licence area | London |
| Operator | London Power Networks plc, part of UK Power Networks |
| Same group also covers | South East England and the East of England, under two other companies |
| Status of this entry | Provisional until the operator's own checker has seen your postcode |
Licence area boundaries do not follow borough boundaries, and outer London addresses are exactly where a map like ours is most likely to be wrong. Our source for the map is an encyclopaedia, which is a starting point and not an authority. A postcode checker run by the operator is the authority, and it takes less time than reading this paragraph.
If you would rather not chase the operator yourself, send the postcode and we will do it.
You get back the licence area we can confirm for that address, the route the operator publishes for notifying it, and the London generation figures rerun at your own coordinates.
We do not fit these and we do not sell them, so there is no second email.