Are There Grants for Plug-in Solar in the UK?

No. There is no UK grant, rebate or subsidy aimed at plug-in solar, and none has been announced alongside the 2026 rule change. The government's plug-in solar consultation deals with product safety and how these systems connect to the network; it does not create any funding, and the accompanying legislation, SI 2026/848, is an amendment to safety regulations rather than a support scheme.

That is worth stating plainly because plug-in solar is often discussed alongside rooftop solar, which does attract public support in the form of export payments and a VAT relief. Plug-in solar currently gets neither. Treat the full retail price as the price you pay.

These are the two schemes people most often ask about, and both are aimed elsewhere. The Energy Company Obligation (ECO4) obliges larger energy suppliers to fund measures that help low-income, fuel-poor and vulnerable households heat their homes, which in practice means installing insulation or upgrading a heating system. Ofgem records the scheme as running until 31 December 2026 following a nine-month extension. Solar panels are not among the measures it promotes, and a portable plug-in device is not an installed home-improvement measure of the kind the scheme funds at all.

The Great British Insulation Scheme is narrower still: as its name suggests it funds insulation, and gov.uk now states that the service to check whether you are eligible for free or cheaper home insulation has closed. The Boiler Upgrade Scheme, the third scheme frequently mentioned in the same breath, funds heat pumps and biomass boilers. None of the three is a route to a solar panel, plug-in or otherwise.

Yes, at the standard rate. This is the detail that catches people out, because solar genuinely does have a VAT relief - it just does not reach a plug-in kit. Under HMRC VAT Notice 708/6, the zero rate on energy-saving materials in residential accommodation runs from 1 May 2023 to 31 March 2027, after which it reverts to the reduced rate of 5%. But the relief attaches to installation. HMRC defines installing as a process by which materials are permanently fixed in place, and states that if you supply energy-saving materials without installing them the supply is standard-rated, adding that the sale of energy-saving materials by a retailer is always standard-rated.

A plug-in system is bought off the shelf and plugged in by the owner, with nothing permanently fixed and no installer supplying the goods. So it is a normal retail purchase carrying 20% VAT. This is exactly the same line that separates a fitted home battery from a portable power station, which we cover in the guide to solar battery storage.

Three features of plug-in solar put it outside schemes designed around conventional retrofit. It is a product rather than an installation, so there is no accredited installer, no permanent fixing and no measure to certify - and certification by an approved installer is the mechanism these schemes use to release funding. It is portable and reversible, which is its main appeal to renters but also means it is not a lasting improvement to a property. And it is small: at a maximum of 800W AC it saves a modest amount, so it does not move a home's energy rating the way insulation or a heating upgrade does.

None of that is a judgment on whether plug-in solar is worthwhile. It simply is not the kind of thing the existing funding architecture was built to pay for.

It could, but nothing is promised, so do not build it into your sums. The 2026 framework is deliberately a safety and connection reform rather than an incentive one: it creates the plug-in microgenerator category, sets the product requirements and amends Engineering Recommendation G98 so compliant kits may connect. Support could follow once certified kits are actually on sale and the market has a size worth targeting, and the rule change itself is the precedent for policy moving here. But there is no consultation running on funding for plug-in solar at the time of writing.

The realistic planning assumption is that you buy a plug-in kit at full retail price including VAT, and that your return comes from the electricity you avoid buying rather than from any grant or payment.