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Octopus Energy becomes the first major UK energy supplier to sell plug-in solar direct to customers, starting at £450 for a single 460W bifacial panel

Where Amazon, Currys, B&Q and Lidl entered the plug-in market as retailers stocking third-party kits, Octopus is entering as a supplier, bundling the kit with its own tariffs and pitching a two-panel setup on a smart export tariff at roughly 5.5 years' payback, with orders open now and delivery expected by the end of September.

4 September 2026 · Source: Octopus Energy

This site covered the retailer side of the 27 August plug-in solar launch when Amazon, Currys, B&Q and Lidl confirmed compliant stock at £300 to £600 a kit. Octopus Energy's entry is a different kind of announcement: it's the first major UK energy supplier, not a retailer, to sell plug-in kits directly, and the distinction matters because a supplier controls the other half of the payback equation, the tariff the exported or offset electricity gets valued against. Octopus's one-panel kit starts at £450, sitting mid-range against the retailer prices already reported, for a single 460W bifacial panel with a standard three-pin plug and 5m cable, wall or ground mountable.

The bifacial spec is worth noting for anyone in Kent weighing panel choice: a bifacial panel captures reflected light off its rear face as well as direct sun on the front, which typically adds a modest output gain on a light-coloured wall or paved mounting surface over a mono-facial panel of the same rating, though Octopus hasn't published independently verified figures for that uplift specific to this kit. Octopus's own numbers claim up to £150 a year in savings and roughly 5.5 years' payback for a two-panel setup paired with a smart export tariff, a figure that assumes both self-consumption savings and export income, which puts it ahead of the retailer-only kits this site flagged as SEG-blind until Ofgem's simplified registration route lands, expected around 2027.

That gap is the real story here. A plug-in kit bought from a general retailer has no SEG route until the simplified registration exists; a kit bought from a supplier that also sets your export tariff can, in principle, get paid for surplus generation sooner if Octopus extends an export product to plug-in customers ahead of the wider Ofgem timeline, since the supplier-side tariff relationship doesn't strictly require Ofgem's simplified route, only Octopus's own willingness to meter and pay for it. Whether that actually happens, and on what terms, is the detail worth watching rather than assuming from the press release's payback figure.

None of the underlying restrictions this site has already flagged change: the SI 2026/848 fire-safety carve-outs (no timber balconies, no ACP-clad buildings, no properties under fire remediation), the mandatory DNO notification for every install regardless of retailer, and landlord or freeholder consent for renters and leaseholders all still apply to an Octopus kit exactly as they do to one from Currys or Lidl. What's changed with this launch is that the supplier layer of the plug-in market has opened up, which means the next thing worth checking, before assuming the 5.5-year payback figure applies to your situation, is whether Octopus's export terms for plug-in customers are published anywhere yet or still pending alongside the rest of the industry.

Read the original: Octopus Energy. Commentary is Sandwich Solar's own editorial view; the original reporting is credited to its publisher.

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