The Plug-in Solar Report: 4 October 2026

26 new plug-in solar approvals take the total to 109

We started the week with 83 complete plug-in solar kit configurations marked as compliant on the ENA Type Test Register. Five days later, there are 109.

That means 26 new configurations have been added in a single working week, making this one of the busiest weeks for new plug-in solar approvals since the rules changed at the end of August.

It is worth remembering that 109 ENA entries does not necessarily mean 109 completely separate retail products. A single ENA approval can cover more than one kit configuration, as we have already seen with Octopus Energy and EcoFlow, where multiple retail kits sit under the same approval. Equally, some ENA entries are variations built around different panels, microinverters or mounting arrangements, and many have not yet reached retail.

That means the ENA total is best treated as a measure of how quickly the compliant market is expanding, rather than a direct count of the number of individual kits currently available to buy.

Even so, the market is expanding quickly. As of 4 October, 41 of those 109 compliant configurations have now reached the point where we have identified a retail listing.

Four City Plumbing plug-in solar kits are now in stock

Probably the most useful news for buyers this week is that City Plumbing finally has a decent amount of stock again.

City Plumbing now has 12 compliant plug-in solar kits listed for sale, with four of its DMEGC kits currently showing as in stock:

• City Plumbing DMEGC 465W Plug-in Solar Kit — £336
• City Plumbing DMEGC 515W Plug-in Solar Kit — £348
• City Plumbing DMEGC 930W Plug-in Solar Kit — £444
• City Plumbing DMEGC 1030W Plug-in Solar Kit — £468

That makes City Plumbing home to some of the cheapest and best-value plug-in solar kits on the market right now, so it is not particularly surprising that stock has been disappearing quickly whenever it becomes available.

The 1030W kit is especially notable. At £468 it gives you more than 1kW of panel capacity while still coming in below £500.

City Plumbing also added four new DMEGC configurations this week, covering 475W, 525W, 950W and 1050W. None of those four is showing stock yet, but the retail listings are now in place.

City Plumbing's own DMEGC kits released so far use the Hoymiles HF-800-WB HiFlow microinverter with a single MPPT. There are still ENA-approved City Plumbing configurations using the dual-MPPT Hoymiles HMS-800-2WB HiFlow Pro that have not yet appeared for sale.

Currys has entered the plug-in solar market

Currys is now stocking its first compliant UK plug-in solar kit, adding another major national retailer to the growing list of places where plug-in solar is becoming available.

The InstaGen ONE 870W Plug-in Solar Kit is listed at £599. It combines two 435W bifacial TOPCon N-Type panels with the Hoymiles HF-800-WB HiFlow microinverter and an adjustable mounting system designed for ground, wall or balcony installation. It is currently showing as out of stock.

The Hoymiles HF-800-WB HiFlow is a single-MPPT microinverter, and is the same model used across City Plumbing’s current DMEGC plug-in solar kits.

The more interesting development is Currys itself joining the market. It is not the first mainstream retailer to sell compliant plug-in solar, with Argos and Screwfix already stocking kits, while Modular Solar products are also available through Amazon.

But Currys adds another familiar household name to that list. Plug-in solar is no longer confined to specialist solar suppliers and direct manufacturer sales, and is starting to appear across mainstream retail channels that a much wider group of consumers already know and use.

Solarfy adds two new dual-MPPT plug-in solar kits

Solarfy is another new supplier to reach the market, with two compliant kits now available and both currently showing as in stock.

The Solarfy Solo 455W costs £449, while the two-panel Solarfy Duo 910W is £599. Both use JA Solar 455W bifacial panels and the Hoymiles HMS-800-2WB HiFlow Pro microinverter.

The Hoymiles inverter has two independent MPPT channels, allowing its two panel inputs to be managed independently. Both Solarfy kits also use a fixed 20-degree mounting system intended for ground or flat-roof installation.

Dual MPPT is unlikely to make a dramatic difference where two identical panels sit side-by-side and receive very similar sunlight, but it becomes much more useful where panel conditions differ, particularly with different orientations or partial shading.

Worldwide Solar now has 31 compliant kit configurations

Worldwide Solar Ltd has become one of the biggest contributors to the ENA plug-in solar register almost overnight, with 31 compliant configurations now appearing in our tracker.

The range covers several different panel capacities and combinations using both Hoymiles and VaySunic microinverters, including systems from 920W up to 1320W.

Three Worldwide Solar kits have so far reached retail. A 920W kit is currently in stock at £454, while a larger 1080W kit is available for £474. There is also a 930W kit using two 465W bifacial JA Solar panels and a ZAM steel mounting system, priced at £599 but currently out of stock.

The two cheaper kits are particularly interesting because neither includes any mounting equipment. And this is not limited to those two retail products.

Of Worldwide Solar’s 31 compliant configurations, 15 have been approved without a mounting system included.

That is a significant development for the UK plug-in solar market. All compliant kits released so far have included a particular mounting system as part of the package, but these approvals show that mounting equipment does not necessarily have to form part of the approved kit.

For buyers, that creates much more flexibility. A compliant electrical kit can be supplied without a frame, allowing the customer to choose a suitable mounting solution for their own location without having to buy mounting equipment they do not need.

It also opens the door to a much wider range of installations, particularly where a standard ground, wall or balcony frame would not be appropriate.

The choice of compliant UK plug-in solar kits is growing quickly

The market looks quite different today from where it was even a few weeks ago.

There are now 109 compliant configurations on the ENA register, 41 have reached retail listings, City Plumbing has four of its aggressively priced kits back in stock, Currys has joined the market, and smaller suppliers such as Solarfy and Worldwide Solar are bringing more choice in panels, microinverters and mounting arrangements.

The gap between an ENA approval appearing and a product actually becoming available to buy is still significant, and stock remains inconsistent. But there is now enough competition developing that buyers are beginning to get meaningful choices around price, panel capacity, MPPT configuration and mounting rather than simply choosing whichever compliant kit happens to be available.