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Plug-in solar / All kits / SunVault

4 Panel Balcony Solar DIY Kit

Sold by Verity Vox Ltd (trading as SunVault)

£2,800.00£1.17/W of AC output· price seen 29 Aug 2026

View at Verity Vox Ltd (trading as SunVault) ↗ You buy from the vendor, not from us.

What we checked

Three of the four tests in SI 2026/848 can be spoken to from a published specification. Here is what this kit’s specification says about each — and where it says nothing, so do we.

  • AC output is 800W or less — Does not meet this test
    Published AC output is 2,400 W, above the 800W ceiling. On the published figure this kit sits outside the plug-in route in SI 2026/848. That is not the same as being unlawful — it may be perfectly fine as a fixed installation signed off under G98 or G99.
  • Contains no battery — Does not meet this test
    This kit includes a battery of 5.2 kWh, which puts it outside the plug-in microgenerator route in SI 2026/848. Again: outside that route, not unlawful. Battery systems are routinely installed lawfully as fixed installations under G98/G99 — they simply are not plug-in devices.
  • Appears on the ENA register — Not yet verified
    We have not matched this kit to a specific entry on the Energy Networks Association Connect Direct register. Vendor names and model names on the register frequently differ from retail names, so an unmatched kit may well be registered under a name we have not linked yet. We would rather say we do not know than guess.
Our overall position: not yet verified. We publish no compliance verdict on anything we list. The fourth test — that the device connects by a standard plug and runs in parallel with the grid — is not something we can confirm from published specifications, and the ENA register carries a status field whose meaning we have asked the ENA to explain and are still waiting on. Until that is settled, treat the rows above as facts we have gathered, not as a judgement.

Price history

SeenPriceIn stock
29 Aug 2026£2,800.00not stated

The kit

4 × PANEL1,800 WDC, peakINVERTER2,400 W ACSOCKETBATTERY · 5.2 kWh · outside the plug-in route

Schematic, drawn from this kit’s own published figures — panel count, DC watts, AC output, battery and mounting. We do not hold a photograph of this kit. If you sell it, claim the listing and send us one.

Specification

AC output (the 800W cap applies here)2,400 W
Panel peak output, DC1,800 W
Panels in the kit4
Battery includedYes
Battery capacity5.2 kWh
Price£2,800.00
Price per AC watt£1.17/W
8 fields the vendor has not published
  • Mounting
  • Inverter make
  • Inverter model
  • In stock
  • Warranty
  • Plug type
  • Fuse rating
  • Vendor offers finance

Blank because the vendor has not stated it, not because we have not looked. We do not fill a gap with an estimate — if you need one of these, ask them, and tell us what they say.

What would this kit save you?

Pre-filled with this kit’s figures — 1,800W of panels, capped at the 2,400W AC inverter rating, and the price. Change the tariff and self-consumption to match your own house.

What you will get

Your postcode is turned into coordinates, those coordinates are run through PVGIS — the European Commission’s solar yield model — and the resulting annual generation is valued at your own unit rate. Then it is drawn: what you generate across a day against what your house uses, month by month through the year, and what would change if you pointed it somewhere else.

Standing assumptions
  • Orientation and mounting angle are yours to set above, and they matter: a vertical north-facing balcony rail and a 35° south-facing garden frame are barely the same product. System losses 14% — the PVGIS default.
  • Generation is capped at the inverter’s AC rating. Panels bigger than the inverter clip on bright days, and we deduct that — most plug-in kits are deliberately oversized, so it is not a rounding error.
  • Only the electricity you use at the moment it is generated counts as a saving. Export is not valued.
  • No inflation, no export payment, no panel degradation.