Seen on UK shelves. EcoFlow and Jackery are now stacked in Costco, with Currys, B&Q and Lidl following. Read the market note, set against Germany's balcony boom →
The approved kits that are on sale, cheapest per watt first
| Kit | Panel | Price inc VAT | Per watt | Where the price comes from |
|---|---|---|---|---|
| CPS 1030W kit, 2 x DME-515W | 1030W | £468.00 | £0.45 | City Plumbing, 9 Sep 2026 |
| CPS 940W kit, 2 x JKM470N-48QL6-DB | 940W | £432.00 | £0.46 | City Plumbing, 9 Sep 2026 |
| CPS 930W kit, 2 x DM465G12RT-G48HBB | 930W | £444.00 to £456.00 | £0.48 to £0.49 | City Plumbing £444.00, City Plumbing £456.00 |
| EF Stream plug-in solar kit, flat roof, facade and pitched roof | 800W | £449.00 | £0.56 | EcoFlow UK, 22 Sep 2026 |
| CPS 515W single panel kit, DMEGC | 515W | £348.00 | £0.68 | City Plumbing, 22 Sep 2026 |
| CPS 1x DME-525W-BW-1 + Hoymiles HF-800-WB Plug-In Solar Kit | 525W | £360.00 | £0.69 | City Plumbing, 4 Oct 2026 |
| PatioSun Max | 870W | £599.00 | £0.69 | patiosun.co.uk, pre-sale, 4 Sep 2026 |
| Octopus Energy two panel bundle, 2 x JA Solar 460W | 920W | £650.00 | £0.71 | octopus.energy, 9 Sep 2026 |
| CPS 465W single panel kit, DMEGC | 465W | £336.00 | £0.72 | City Plumbing, 22 Sep 2026 |
| UKSOL Pro Max 1260W, two panel hybrid mount | 1260W | £989.00 | £0.78 | Argos, 28 Aug 2026 |
| PatioSun Duo | 800W | £649.00 | £0.81 | patiosun.co.uk checkout, pre-sale, 5 Sep 2026 |
| Thunder Bolt 920W | 920W | £749.99 | £0.82 | thunderenergy.co.uk, 28 Aug 2026 |
| UKSOL Pro Plus 1030W, two panel hybrid mount | 1030W | £899.00 | £0.87 | Argos, 28 Aug 2026 |
| UKSOL Pro Duo 890W, two panel hybrid mount | 890W | £849.00 | £0.95 | Argos, 28 Aug 2026 |
| Solarfy Solo 455 Plug-in Solar Kit - SFY-SOLO-455-BM | 455W | £449.00 | £0.99 | Solarfy, 4 Oct 2026 |
| UKSOL Pro Duo 890W, two panel ground mount | 890W | £951.60 to £1,199.00 | £1.07 to £1.35 | City Plumbing £951.60, uksol.uk, UK mainland delivery included £1,089.00, Argos £1,199.00 |
| PatioSun Lite | 400W | £449.00 | £1.12 | patiosun.co.uk, pre-sale, 4 Sep 2026 |
| UKSOL Pro Compact 515W, single panel hybrid mount | 515W | £583.39 to £599.00 | £1.13 to £1.16 | iHelios Living £583.39, Argos £599.00 |
| Thunder Bolt 460W | 460W | £549.99 | £1.20 | thunderenergy.co.uk, 28 Aug 2026 |
| UKSOL Pro Compact 460W, single panel ground mount | 460W | £670.80 to £849.00 | £1.46 to £1.85 | City Plumbing £670.80, Argos, uksol.uk and Crampton & Moore £849.00 |
| Modular 340W Solar Unit | 340W | £465.00 | £1.37 reported | Amazon, reported by NationalWorld, 4 Sep 2026 reported, not yet read at the seller |
| Modular 475W Solar Unit | 475W | £650.00 | £1.37 reported | Amazon, reported by NationalWorld, 4 Sep 2026 reported, not yet read at the seller |
| Every verified figure was read on the seller's own page on the date shown, inclusive of VAT with delivery. Per watt is price divided by total panel wattage. 87 of the 109 listed kits have no public retail price yet and are left out rather than estimated. Rows marked reported come from a named publication rather than the seller and are excluded from the cheapest-kit figure. | ||||
What the numbers say. The median approved kit now costs £0.80 per watt of panel, tracked on our price index. Panel wattage buys itself. The best value on the list is a City Plumbing DMEGC 1030W at £0.45 a watt and the worst is the UKSOL Pro Compact 460W at £1.85, nearly three times the price for the same 800 VA of output, so if you have the space, size up. One caution on PatioSun, and it is the reason we now quote its checkout totals rather than its listed prices. The Duo is advertised at £549 and charges £649 at the checkout, a £100 gap we confirmed on 5 September 2026. Read the basket total before you commit, on that seller in particular. The mount costs more than you expect: the same UKSOL 890W kit is £849 on a hybrid mount and £1,199 on a ground mount. And the channel is no longer priced uniformly, which is a change from a fortnight ago. City Plumbing lists that 890W ground mount at £951.60 against £1,199 at Argos and at UKSOL direct, so a trade merchant is now worth checking before a consumer retailer. Eighty-nine of the one hundred and nine listed kits have no public retail price anywhere yet; the register tracker carries the full list including those.
Where to buy an approved kit
Lead times are on their own page. Argos quotes nine weeks, Octopus quotes the end of September, four of these ten sellers publish no window at all, and collecting from a UKSOL depot saves up to £290. The detail is on where to buy, and how long the wait is.
UKSOL sells through both high-street retail and web shops, Thunder Energy and PatioSun sell their own kits direct, and Octopus Energy sells to its own customers. One thing worth knowing before you shop around, and it has changed in the last fortnight. UKSOL's consumer pricing is still uniform: the ground-mount 460W is £849 at Argos, £849 direct from UKSOL and £849 at Crampton & Moore. Trade merchants are not. City Plumbing lists the 890W ground mount at £951.60 against £1,199 everywhere else, a gap of £247 on the same kit, which is worth the trade account if you can open one. The 515W also moves a little, from £583.39 at iHelios to £599 at Argos. One caution on City Plumbing: a listing at £670.80 showed as a 515W hybrid on the product page and a 460W ground mount on the category page, so we have left it out of the table above rather than attach a price to the wrong model.
| Where to buy | Type | Notes |
|---|---|---|
| Argos | Retail store and web shop | UKSOL range, free delivery |
| Octopus Energy | Energy supplier, direct | Selling now, £450 single panel and £650 two panel, inc VAT and delivery |
| PatioSun | Direct, pre-sale | Cheapest compliant kit found, £449 listed. Check the basket total, its Duo charges £100 over the listed price |
| Thunder Energy | Direct | Own Bolt kits, free UK delivery |
| City Plumbing | Trade merchant | Materially cheaper than consumer retail on UKSOL ground mounts |
| Crampton & Moore | Retail store and web shop | UKSOL, pre-order |
| UKSOL | Web shop, direct | Click and collect from six depots |
| Green2Go | Web shop | UKSOL range |
| Electrical2Go | Web shop | UKSOL range |
| iHelios Living | Web shop | Cheapest UKSOL 515W found |
| Stockists confirmed 9 Sep 2026. Plain links, not affiliate links: Plug Solar Hub earns nothing from any seller of a compliant kit. Availability and price vary by seller, so check the model code against the register before ordering. | ||
Not on the register, and what they are still good for
Which EcoFlow kit should you buy?
A quick verdict, then the full spec table. The primary link goes direct to EcoFlow for UK VAT, UK returns and the 5-year warranty, with Amazon UK as an alternative.
Panels and a microinverter, no battery, inside the 800W cap. Plug-in solar became legal on 27 August 2026 under SI 2026 No. 848, and 48 kits from 13 manufacturers now show as Compliant on the ENA G98 Type Test Register. EcoFlow is not one of them. Nothing in this block may be plugged into a socket and self-notified. It is lawful to buy for off-grid or portable use, or for a hardwired installation by a CPS-registered electrician. The approved kits are in the tables higher up this page.
EcoFlow STREAM 800 Balcony Kit
Two 400W panels and an 800W microinverter, no battery. Status, 22 September 2026: EcoFlow is now on the ENA G98 register for the flat roof, facade and pitched roof mountings. The balcony mounting is not named in that entry, so this kit cannot yet be plugged in and self-notified. We have asked EcoFlow and will update this the day it changes. The cheapest kit you can lawfully plug in is on the register at £432.
Latest price at EcoFlow →also on Amazon UKAnything with a battery sits outside the plug-in route, because the legal definition excludes devices designed to import electricity in order to store it for later. These are still a good buy and still legal, they simply need a qualified electrician for a fixed install, or they work as portable units with no wiring at all.
EcoFlow STREAM Pro 1.92 kWh
Kit with battery: 800W in, 1200W AC out, stack to 11.52 kWh, smart time-of-use.
Latest price at EcoFlow →also on Amazon UKEcoFlow STREAM Ultra X 3.84 kWh
Four panels, 3.84 kWh, expandable to 23 kWh. For a sunny spot with real daytime load.
Latest price at EcoFlow →also on Amazon UK| EcoFlow kit | Battery | AC out | Panels | From | Buy |
|---|---|---|---|---|---|
| STREAM 800 Balcony Kit, balcony mounting not named on the register | none | 800W | 2 x 400W | ~£499 | Latest price |
| STREAM Pro | 1.92 kWh | 1200W | 2 x 400W | ~£979 | Latest price |
| STREAM Ultra | 1.92 kWh | 2300W | 4 x 400W | ~£1,299 | Latest price |
| STREAM Ultra X | 3.84 kWh | 2300W | 4 x 400W | ~£1,999 | Latest price |
| STREAM AC Pro (battery only) | 1.92 kWh | 1200W | none | ~£798 | Latest price |
None of the EcoFlow kits above is on the ENA G98 Type Test Register. The prices here were read at EcoFlow UK on 26 June 2026 and they change, so the button shows the live price, never a promised one. Disclosed affiliate links: EcoFlow direct via Awin, Amazon UK. How we stay free.
EcoFlow STREAM 800W Kits (Panels Only)
Not on the ENA G98 register. Two 400W panels + 800W micro inverter + Wi-Fi app control. Pick the mount that fits your space.
EcoFlow
STREAM 800W Balcony Solar System
The standard kit. Two 400W rigid panels with the STREAM 800W micro inverter. Built-in Wi-Fi for real-time monitoring via the EcoFlow app. Mounts to balcony railings, garden fences, or south-facing walls.
EcoFlow
STREAM 800W + Lattice Balcony Brackets
Same 800W system with brackets specifically designed for lattice-style balcony railings. Secure, no-drill installation on metal or wooden lattice frameworks.
EcoFlow
STREAM 800W + Pitched Roof Brackets
The same 800W system with mounting brackets designed for pitched (sloped) roofs. Ideal for homeowners with a small south-facing roof section or garden shed.
Standalone Microinverter
The inverter at the heart of an 800W plug-in setup, for adding panels to an existing system or replacing a unit rather than buying a full kit. Background in the microinverters guide.
EcoFlow
PowerStream Microinverter
EcoFlow's grid-tie microinverter, the unit that links your solar panels to a STREAM or DELTA battery and the EcoFlow app. Useful when you are expanding an existing balcony setup or replacing the inverter on its own.
Best for: adding or replacing the inverter on an existing panel setup, not a full kit.
EcoFlow Stream Pro (Panels + Battery Storage)
800W panels + 1.92 kWh LFP battery (expandable to 11.52 kWh). Store surplus solar and charge from the grid at off-peak rates. 6,000-cycle battery life.
EcoFlow
Stream Pro + 800W Rigid Panels
The complete solar + storage system. 800W panels charge the 1.92 kWh LFP battery during the day; stored energy feeds back after sunset. AI-powered time-of-use optimisation charges from the grid at cheap overnight rates. 3 MPPT inputs, 1200W dual AC output, 2300W solar input capacity.
EcoFlow
Stream Pro + 800W Panels + Lattice Balcony Brackets
Full solar + battery system with lattice balcony mounting brackets. Same 1.92 kWh expandable battery, AI time-of-use charging, and 1200W dual AC output. Designed for lattice-style railing installations.
EcoFlow
Stream Pro + 800W Panels + Pitched Roof Brackets
Full solar + battery system with sloping roof brackets. 1.92 kWh expandable battery, AI time-of-use optimisation, and 1200W dual AC output. For homeowners with pitched roof mounting points.
EcoFlow STREAM Ultra (1600W Kits)
Four 400W panels (1600W total) with larger battery storage. For households wanting maximum generation and multi-day reserves. Expandable up to 21-23 kWh.
EcoFlow
STREAM Ultra 1.92kWh Balcony Power Plant
Double the panels, double the generation. Four 400W panels (1600W) paired with a 1.92kWh LFP battery that expands to 21kWh. Four MPPT inputs handle the higher solar input efficiently. AI Smart Control optimises time-of-use charging. Suits larger households or anyone wanting to cover most of their daytime consumption.
EcoFlow
STREAM Ultra X Balcony 3.84kWh + 1600W Panels
The flagship system. 1600W of panels charge a 3.84kWh LFP battery that can expand to 23kWh. Built-in memory function retains your optimised settings. Dual 2300W AC connections for high-demand appliances. AI load management and 6,000 charging cycle rating make this a long-term home energy asset.
Battery Add-Ons & Portable Power Stations
Already own panels? Add a battery. Want portable power you can take anywhere? These two options fit both jobs.
EcoFlow
STREAM AC Pro 1.92 kWh, Battery Only
A standalone 1.92 kWh LFP battery you can add to any existing microinverter solar setup. 100% compatible with all microinverters. 1200W AC output, expandable to 11.52 kWh. Ideal if you already own a STREAM 800W or similar panel-only kit and want to add storage. TOU & AI control built in.
Best for: existing STREAM 800W owners wanting to upgrade to battery-backed storage without replacing panels or inverter.
Affiliate link, we earn a small commission if you buy. No extra cost to you.
EcoFlow
DELTA 3 Plus Portable Power Station, 1024 Wh
Portable LFP power station with 1024 Wh battery, 1800W solar input, and fast AC charging (fully charges in 56 minutes). Ideal for renters who may move, backup during power cuts, or camping/vanlife. Pair with any plug-in solar panel for an instant off-grid solution.
Best for: renters who may move, anyone wanting power-outage backup, or buyers who want solar energy that travels with them.
Affiliate link, we earn a small commission if you buy. No extra cost to you.
Recommended Accessories
Small add-ons that squeeze more value out of any plug-in solar setup, monitoring, cabling and connectors I'd buy alongside a kit.
EcoFlow
EcoFlow Smart Plug
Integrates directly with the EcoFlow app. Auto-on appliances when solar output is high, best for running dishwashers or washing machines on free solar.
Affiliate link, small commission, no extra cost.
Amazon Basics
Amazon Basics Smart Plug (Matter)
Budget monitoring plug. Matter-compatible, works with Alexa, Google Home and Apple HomeKit. Use it to track appliance consumption vs solar output.
Affiliate link, small commission, no extra cost.
Universal
Solar Panel Connector to XT60 Extension Cable (3m)
Connects a solar panel (standard MC4-style ends) to a DELTA 3 Plus, Bluetti or Allpowers portable power station. Also useful for routing panel cables neatly round balcony rails. Works with most brands.
Affiliate link, small commission, no extra cost.
Affiliate links, small commission, no extra cost to you.
Further reading
New: Ed Miliband confirms plug-in solar for UK shops in 2026 · New: Best microinverters for UK plug-in solar · New: Battery storage directory (12 UK options compared) · New: Battery idle draw and runtime explained · New: Solar panels that plug into a socket, what's legal in 2026 · New: Solar noon calculator UK · How to fill in the EREC G98 forms · Best solar kits for UK renters · Is a plug-in solar battery worth it? · The cheapest plug-in solar kits you can legally buy · What Germany's balcony boom teaches UK buyers · Renter's guide to plug-in solar · Complete UK plug-in solar guide · New: Plug-in solar for flats · New: Plug-in solar for terraced houses · New: Plug-in solar for semi-detached houses · New: Plug-in solar in the garden · New: Plug-in solar in Hampshire & the Isle of Wight