Two of the biggest names in balcony solar cleared the ENA G98 register this week, and the register has almost doubled to 69 kits from 19 manufacturers in thirteen days. EcoFlow’s entry names three mountings and the balcony is not one of them. Here is what the register actually says, what it costs, and why only 18 of those kits are on sale anywhere.
The register entry is ECOFL/21128/V1/A3, listed as Compliant on 22 September, rated 0.8 kW, one device per household. The model field reads:
EFStreamPlug-inSolarkit-UK-FlatRoof / EFStreamPlug-inSolarKit-UK-Facade / EFStreamPlug-inSolarKit-UK-PitchedRoof
Three mountings, named individually. If you go to EcoFlow’s UK store you will find those three: a roof kit sold in flat and pitched versions, and an adjustable facade kit at fifty and ninety degrees. You will also find a balcony kit, sold in lattice, concrete and glass variants, and a garden and ground kit. Those are not named in the entry.
A second EcoFlow entry, ECOFL/21606/V1/A1, covers a different pairing: the EF-PS-800 inverter with SPDG505 panels. That is a separate product from the STREAM range.
You could reasonably argue that a bracket is a bracket. The panels are the same, the inverter is the same, and what changes is the metal holding it to the building. We thought that too, until we read how Zendure filed.
Zendure lodged six separate register entries on the same day, for what is otherwise one product:
| Reference | Configuration |
|---|---|
| ZENDU/21472/V1/A1 | SolarFlow 800, two panels, two floor brackets |
| ZENDU/21473/V1/A1 | SolarFlow 800, two panels, two wall brackets |
| ZENDU/21474/V1/A1 | SolarFlow 800, two panels, two balcony brackets |
| ZENDU/21469/V1/A1 | As above, floor brackets, plus MC4 extension cables |
| ZENDU/21470/V1/A1 | As above, wall brackets, plus MC4 extension cables |
| ZENDU/21471/V1/A1 | As above, balcony brackets, plus MC4 extension cables |
Six filings. The only differences are the bracket and whether an extension cable is in the box. Zendure’s compliance people went to the trouble and expense of certifying each combination separately, which tells you they believe the ENA treats the mounting as part of the tested configuration. That is consistent with everything else on this register, where compliance attaches to the tested assembly of panels, inverter, lead and plug rather than to a brand.
Against that, EcoFlow naming three mountings and leaving out the one it markets hardest reads as deliberate rather than accidental.
I want to be fair to EcoFlow here, because the likeliest explanation is dull. Certifying three mountings at once is a company covering its range rather than testing the water, and the balcony version uses the same electronics as the ones that passed. Sequencing is a far more probable reason than a problem with the product. But sequencing still means today, on the register, the balcony kit is not listed, and a reader who plugs one in on the strength of this week’s headlines would be relying on something the public record does not yet say.
Here is the finding I did not expect. Twenty-one kits and six manufacturers were added in thirteen days, and the price index barely moved: £0.80 a watt against £0.8152 on 9 September.
It barely moved because almost none of the new kits are for sale. Of 69 approved kits, only 18 have a price you can read on a seller’s own page. That share has fallen from 31% to 26% in a fortnight.
Zendure is the sharpest illustration. Six approvals for the SolarFlow 800, and the SolarFlow 800 does not appear on Zendure’s UK store. The store sells the SolarFlow 2400 Pro, the 2400 AC Plus, the 3680 Mix, some panels and a smart meter, several of them showing as sold out. Perlight is the same shape at larger scale: twelve approvals, nothing on sale.
Certification is now running ahead of retail. If you are a manufacturer, being on the register is a marketing asset from the moment you clear, whether or not you have stock in a warehouse. So the register is starting to measure intent as much as availability, and anyone quoting the headline count as though it were a shopping list is quoting the wrong number.
While the big names were clearing, City Plumbing quietly listed single-panel kits. A DMEGC 465W panel with the Hoymiles HiFlow inverter, catalogue number 341487, is £336 including VAT. The 515W version is £348.
That is a 22% fall in the entry price in thirteen days, from £432 to £336, and it happened without anybody cutting a price. A cheaper way in appeared, which is a different thing.
It is worth separating two numbers that most coverage will run together. The entry price is what it costs to start, and that has collapsed. The price per watt is what capacity costs, and that has hardly changed: the best on the register is still £0.4544 a watt, a City Plumbing 1030W kit at £468. A single 465W panel is cheap to buy and expensive per watt. If you have the space, two panels remain much better value. If you do not, the floor just came down by ninety-six pounds.
EcoFlow, for the record, does not reset anything. Its cheapest approved configuration is the facade kit with two 400W panels at £449, which is £0.56 a watt and fourth on our table. City Plumbing holds the top three places and the floor.
One entry on the list is easy to miss. VALE GmbH cleared on 15 September with this:
VALE Plug-In Solar 900Wp EF-PS-800 3in1 Mounting Kit
EF-PS-800 is EcoFlow’s inverter. A German company certified a UK plug-in solar kit built around EcoFlow hardware seven days before EcoFlow’s own entries cleared.
This is the second time we have seen that shape. Octopus Energy’s approved device is a rebadged Fox ESS, which we reported on 9 September. The pattern is that a handful of inverter makers are becoming the layer everyone else builds on, and the brand on the box is increasingly a badge rather than a manufacturer. For a buyer it means the brand tells you less than you think, and the model code on the register tells you almost everything.
I would rather say this plainly than bury it.
Until this morning the rule was simple, because the market made it simple: nothing on this site earned us a penny from any seller of a compliant kit. We could say that cleanly because none of the companies we earned from had an approved kit. In September a manufacturer already on the register offered us £30 for every redemption plus a £20 discount code for readers, and we turned it down and published the refusal.
EcoFlow clearing changes the facts, so the rule has to be stated properly rather than repeated. From today: we will take public affiliate programmes, and we will not take a bespoke arrangement with any seller of a compliant kit. Awin and Amazon are open to anyone and create no relationship with a brand. A negotiated commission, a reader discount code or a paid placement creates an expectation, and we are not having one. The September refusal stands and we would make it again.
The two pages this site is actually judged on, the register and the price index, carry no commercial links at all. No kit earns a place on either by paying us. The full policy is here, and if you think we have drawn the line in the wrong place I would genuinely like to hear the argument.
Every reference number here was read on the ENA G98 Type Test Verification Register under the plug-in solar device type on 22 September 2026. Prices were read on the sellers’ own pages the same day: EcoFlow UK, City Plumbing and Zendure UK. The per-watt figures come from our price index, whose method is published and reproducible. The balcony observation is our reading of a register entry set against a public product range, it is labelled as such above, and it is the one thing on this page we would most like to be corrected on.
We also owe a correction. Our 9 September reading reported forty-eight approved kits. It missed five that were already listed, four City Plumbing single-panel kits filed on 8 September and the Segen entry filed on 9 September. The figure should have been fifty-three. The series and the history table are corrected, and it is logged in the changelog.
Sources: ENA G98/G99 Type Test Verification Register, plug-in solar device type, read 22 September 2026. Seller pages at EcoFlow UK, City Plumbing and Zendure UK, read 22 September 2026. DESNZ Plug-in Solar Device Interim Product Specification v2.0. This page carries no affiliate links. We have no bespoke commercial relationship with any company named here, and we have not tested any product. Educational information, not legal or electrical advice.
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