Octopus Energy has become the first major UK energy supplier to sell plug-in solar directly, The Eco Experts reported on 3 September 2026. The offer went live the day after the regulations came into force. On Octopus's product page, checked on 15 September, the single-panel bundle lists one 460W JA Solar panel, a microinverter, a 5m cable with a three-pin plug and a wall or floor mounting kit; the two-panel bundle doubles the panels and mounts. Pricing is shown once you enter a postcode — The Eco Experts quoted a starting price of £450 — and delivery was estimated for the end of September.
The panels are bifacial, so they collect some light from the rear face, and generation appears in the Octopus app alongside the household's usage. Octopus describes a DIY set-up of about an hour, and says the kit can move house with you. Octopus also quotes an annual saving; we do not repeat supplier savings figures, because the number depends on sunlight and daytime use at your address — the calculator gives an estimate for your postcode.
What it means for buyers
A supplier bundle removes two of the usual headaches: the components are chosen to work together, and the monitoring already lives in an app you may use for your bill. It does not remove the compliance check. A plug-in device is lawful to use in Great Britain only if it meets the Interim Product Specification and its manufacturer has registered it as compliant on the ENA Type Test Register; the register entry for the microinverter is what to look for, and our compliance checklist shows how. The limits are the same for everyone — 800 VA and 3.5 A, up to 2,000 W of panels, one device per household — and the connection must be notified to your network operator under G98.
Two things are worth asking Octopus before you order. First, whether any export from the kit is paid: plug-in devices are not yet clearly eligible for the Smart Export Guarantee, as our SEG guide explains, so assume exported electricity earns nothing unless the supplier says otherwise in writing. Second, what the battery plan means for the kit you buy now: the current specification excludes plug-in solar integrated with battery storage, so a battery add-on would be a separate product under separate rules.
How this compares
Retail kits from Argos, Amazon UK and others arrived at the same time; our kits overview explains what to compare, and the cost page covers what drives the price. We have not tested the Octopus bundle, we hold no affiliate links, and we will not describe it as compliant until we have recorded its register entry with the date checked.