A month after plug-in solar became legal in England, Scotland and Wales, the official list of kits you are allowed to plug in has grown to 92 entries, 83 of them marked Compliant. Those 92 entries come from 26 makers and sellers, though only 21 of them have a kit that is actually marked Compliant. Two days earlier the register held 79 entries and 70 compliant ones.
That is a register growing by roughly a dozen entries a week. It is also, for a buyer, a register where most of what is on it cannot be bought.
83 compliant, 23 you can actually buy
We went through every compliant entry looking for a UK consumer listing. We found one for 23 of them. The other 60 are approved and unavailable: registered by the manufacturer, not yet stocked by anyone selling to households.
This is worth knowing before you start searching, because the register is not a shopping list. It is a list of what has passed the test. A model can sit on it for weeks before it reaches a shelf, and some may never arrive here at all.
Our kit tracker covers the 23 you can buy, with what they cost and where they can go.
What changed in the last few days
- One maker added ten entries at once, on 23 and 24 September, all compliant. Three of them note in the register that a mounting system is not included, which is worth checking against the product specification’s expectation that a complete kit comes with one.
- Two more single and double-panel kits were added on 21 and 25 September.
- One kit moved from Non-compliant to Compliant on 25 September, which is a useful reminder that a “Non-compliant” mark is not always permanent. It can mean the evidence has not been accepted yet.
- Three new entries went on as Non-compliant, dated 17, 21 and 23 September.
- Two entries left the plug-in category altogether. Both had previously been Non-compliant. The register does not say why, and we are not going to guess.
The names that are one character apart
This is the part that should worry buyers, and it is the reason we built the tracker around exact model references rather than names.
Several makers have entries whose model numbers differ by a single character, where one is compliant and its near-twin is not. One pair differs only by the digit 2 in the middle of the model code. Another pair has the same panel and the same wattage but different inverters, again one of each. A third maker has two separate compliant entries for the same 890W kit, one for the ground mount and one for the hybrid mount, so the reference has to match the version you are buying. We have already seen a retailer print the wrong one.
There is also a case where a compliant entry exists but the seller’s own page says the moulded plug is still being tested. The register entry and the product in the box are not always the same conversation.
The practical advice: get the System Reference from the seller before you order, and check that exact reference on the register. Not the brand, not the wattage, not the marketing name. If a seller cannot give you a reference, that tells you something.
Still no batteries
Not one of the 83 compliant entries describes a battery, which is exactly what you would expect: battery-integrated devices are outside both the law and the product specification. One maker’s registered bundles use an inverter that the same maker pairs with an expansion battery elsewhere in its range. Those bundles appear to be battery-free as registered, but adding the battery would take the setup outside the rules here. More on batteries.
One more thing, for Northern Ireland
Every single one of the 92 plug-in entries carries a “no” against the flag for full type testing to the Northern Ireland version of the grid rules. Combined with the fact that the law itself extends only to England, Wales and Scotland, that is two independent reasons why a kit advertised as “UK legal” is not something to plug in at a house in Northern Ireland.
What we are watching
- Whether the 60 registered-but-unavailable kits reach UK shops, and at what price.
- Whether the government moves on batteries, or on the one-kit-per-household limit.
- The Ofgem price cap for January, which changes what every kit is worth.
- Whether any supplier other than one starts paying for exported electricity from plug-in kits.
We recheck the register and the prices regularly, and the tracker shows the date of the last check. If something moves, it will be here.
Sources: the ENA Connect Direct Type Test Register, plug-in solar category, read 26 September 2026, compared with a reading taken on 24 September 2026; SI 2026 No. 848; the Plug-in Solar Device Interim Product Specification version 2. Retailer availability and prices were checked on the sellers’ own sites on 26 September 2026. We name no retailers and earn no commission from this article.