A device has to be on the ENA register before it can be sold. We check that first, then compare what each kit is allowed to be: power, panels, connectors, the socket it needs. Where we've found only one so far, we say so.
Answer six quick questions. We do not send your answers anywhere.
Is it on the ENA Type Test Register, marked Compliant?
This is the one check you do not have to take on trust. A device must be registered and confirmed compliant before it can be sold. Search the register by manufacturer or model.
Does the inverter output 800 VA or less?
800 VA is the ceiling on apparent power sent to the mains. 3.5 A is the ceiling on current. A listing above either figure does not meet the specification.
Is the total panel capacity 2000 W or less?
Panel capacity and inverter output are different figures. Up to 2000 W of panels can feed an 800 VA inverter. Above 960 W, the manufacturer must tell you to get your wiring assessed.
Is it free of any bundled battery?
The specification does not cover plug-in battery systems, or plug-in solar sold together with a battery. If there is storage in the box, the whole product falls outside the specification.
Does it come with its own moulded plug and cables?
AC plugs must be BS 1363 with BS 1362 fuse links. DC connectors must meet BS EN 62852, come from the manufacturer, and match each other within a single product family.
Does the seller avoid suggesting an extension lead or adaptor?
Extension cables, multi-way adaptors, RCD adaptors and travel adaptors are all prohibited. A listing that shows or suggests one does not meet the specification.
Your verdict appears here.
We have only verified one kit ourselves. A table of many kits would mean repeating numbers we have not checked.
Other sites list 40, 41, 47 or 52 approved kits, sometimes in the same week, next to prices and rankings. We have not used any of those figures because we did not check them ourselves.
We only name a device once we have opened its record on the register and read it. Everything else here explains how to check a kit yourself, including ones that are not listed yet.
One device record read in full, on 13 September 2026. It is on the register page, with the fields we read and what they mean. When we verify more, they go there too.
Every figure here is from the Interim Product Specification Version 2.0. If a listing contradicts one of these, the listing is wrong.
| What | Limit | Why it catches people out |
|---|---|---|
| Apparent power to the mains | 800 VA | The SI separately sets a limit of 800 W for rated AC output, a different figure that is often confused with this one. |
| Maximum current | 3.5 A | Most listings do not quote this figure at all. |
| Total panel capacity | 2000 W | Panels can be more than double the inverter output, so a big panel number is not a red flag on its own. |
| Assessment threshold | 960 W | Above 960 W, the manufacturer must recommend that you get your wiring assessed. Few listings mention this. |
| Devices per household | One | This comes from the network connection rules, not the product specification itself. Buying two kits will not double what you are allowed to generate. |
| Batteries | Excluded | A bundled battery puts the kit outside the approved class entirely. |
| Extension leads and adaptors | Prohibited | Extension cables, multi-way adaptors, RCD adaptors and travel adaptors are all prohibited. |
If a listing is unclear, send it to us and we will tell you what it does and does not say.
Paste the link or tell us the manufacturer and model. We will look it up on the register, read it against the specification, and tell you what we find, including when we cannot verify something. We do not sell kit and we take no commission from anyone who does.