There is no standalone solar battery grant in the UK in 2026, and the honest answer to a customer asking for one starts there (How To Go Solar, 2026). What does exist is a 0% VAT relief on battery storage that runs until 31 March 2027, plus a handful of means-tested schemes where a battery can ride along with solar or a heat pump (GOV.UK, 2026).
For installers, the value is in framing that clearly. A homeowner who has seen a social-media advert for a "free battery" needs a calm reset, not a hard sell, and an installer who can explain the VAT relief, the ECO4 route and the export payments that follow will win more work than one who plays along with a grant that does not exist. This guide sets out what is actually available and how to talk about it.
Key Takeaways
- There is no universal, standalone grant for a solar battery in the UK; support comes through VAT relief and means-tested schemes (How To Go Solar, 2026).
- Battery storage carries 0% VAT until 31 March 2027, including standalone batteries fitted without solar since 1 February 2024 (GOV.UK, 2026).
- Under ECO4 a battery can be installed alongside a solar PV retrofit, but it is not funded as a standalone measure (Ofgem, 2026).
- The Warm Homes: Local Grant funds solar panels, heat pumps and insulation for eligible low-income homes in England, with income usually £36,000 or less (GOV.UK, 2026).
- The Boiler Upgrade Scheme covers heat pumps, not batteries, so storage is funded through self-consumption and export payments instead (Ofgem, 2026).
Is there a solar battery grant in the UK?
No, there is no dedicated national grant that pays for a home battery on its own. Every current route funds a battery only as part of a wider package or reduces its cost through tax relief, so the closest thing to a "battery grant" is the 0% VAT that applies until 31 March 2027 (GOV.UK, 2026).
That matters for how you quote. Batteries are funded three ways in practice: the VAT relief lowers the price for everyone, means-tested schemes such as ECO4 and the Warm Homes: Local Grant can pay for solar for eligible households, and export payments pay the customer back over time. None of those is a cheque labelled "battery grant", and setting that expectation early avoids an awkward conversation later.
The demand is real even if the grant is not. Storage lets a household use more of its own generation and shift import to cheaper hours, which is why the Warm Homes: Local Grant and ECO4 both feature solar so heavily even where a battery is not itself funded.
0% VAT on battery storage, explained
Battery storage is zero-rated for VAT in Great Britain until 31 March 2027, after which the rate reverts to 5% (GOV.UK, 2026). The relief covers both the hardware and the installation labour as a single supply, so an eligible job carries no VAT at all on the invoice.
The important 2024 change was standalone batteries. Since 1 February 2024 a battery fitted on its own, with no solar panels, qualifies for the same zero rate as an energy-saving material in its own right (GOV.UK, 2026). That opened up retrofit storage for homes that already had panels but paid VAT on any earlier battery.
Treat the deadline as a selling point, not a footnote. From 1 April 2027 the rate returns to 5%, so a customer weighing up storage has a clear financial reason to act while the zero rate holds. Get the invoice treatment right, because the relief applies to a qualifying single supply, not to hardware bought separately by the customer.
Can you get a battery through ECO4?
Sometimes, but only alongside solar, not on its own. ECO4 runs until 31 December 2026 and funds energy efficiency and low-carbon measures for low-income and fuel-poor households, with solar PV listed as an eligible measure. A solar PV battery can be installed during an ECO4 retrofit, yet Ofgem is explicit that it is not added as a standalone measure type (Ofgem, 2026).
In practice that means the battery is a component of a funded solar installation for an eligible household, rather than something a customer can request in isolation. Eligibility is tight: the scheme targets low-income, fuel-poor and vulnerable households, often identified through benefits or a local authority referral under ECO4 Flex. Because storage is tied to the solar measure, the battery size tends to follow the funded system rather than the household's ideal specification, which is worth flagging to a customer who is expecting a large battery.
If you already deliver ECO4 measures, storage can strengthen a solar proposal for the right household. If you do not, ECO4 is not a quick route to funding a one-off battery.
Does the Warm Homes: Local Grant cover batteries?
The Warm Homes: Local Grant funds solar panels, air source heat pumps, insulation and smart controls for eligible homes in England, but it does not list standalone battery storage as a measure (GOV.UK, 2026). To qualify, a home needs an EPC of D to G and a household income usually of £36,000 a year or less, though postcode and benefit routes exist above that threshold.
Because the grant pays for solar, a battery can in principle sit within a wider funded package where the delivering local authority allows it, in the same way as ECO4. The scheme is council-administered and fully funded for eligible households, so what any one homeowner is offered depends on their council's programme.
The takeaway for installers is consistency: like ECO4, this is a means-tested, solar-led route, not a battery grant. Point eligible customers to their council and keep your own quote honest about what the grant will and will not pay for.
Funding routes in Scotland and Wales
Support differs by nation, and Scotland has tightened. Home Energy Scotland has funded clean heating and insulation, but its interest-free loan and grant support for solar panels and home battery storage was withdrawn in June 2024, having previously offered up to £6,000 towards a battery (The Eco Experts, 2026). Scottish customers now look mainly to the 0% VAT relief for storage.
Home Energy Scotland still signposts clean heating grants and interest-free loans, but its published funding no longer covers solar PV or battery storage, so installers north of the border should quote storage on the VAT relief and export payments rather than a loan (Home Energy Scotland, 2026).
Wales runs the Nest scheme for means-tested energy efficiency and heating support, which, like the English routes, is not a standalone battery grant. Across all three nations the pattern holds: batteries are supported through tax relief and wider packages rather than a dedicated payment, so the sales conversation is the same wherever the customer lives.
Funding routes for battery storage at a glance:
- 0% VAT relief: covers standalone and solar-linked batteries across Great Britain until 31 March 2027 (GOV.UK, 2026).
- ECO4: battery only alongside a funded solar retrofit for eligible low-income homes, to 31 December 2026 (Ofgem, 2026).
- Warm Homes: Local Grant: solar, heat pumps and insulation in England, EPC D to G, income usually £36,000 or less (GOV.UK, 2026).
- Home Energy Scotland: no current battery or solar funding since June 2024 (The Eco Experts, 2026).
- Boiler Upgrade Scheme: heat pumps and biomass only, no battery funding (Ofgem, 2026).
Batteries alongside the Boiler Upgrade Scheme and SEG
The Boiler Upgrade Scheme does not fund batteries at all: it pays £7,500 towards a heat pump, not storage (Ofgem, 2026). Where a battery earns its keep is the Smart Export Guarantee, because a battery lets a household store cheap or self-generated power and export it when tariffs pay most.
Under the Smart Export Guarantee, suppliers with 150,000 or more customers must offer at least one export tariff, and the strongest fixed rates sat around 15p per kWh in 2026, with time-of-use tariffs paying more at peak (The Eco Experts, 2026). A battery does not change SEG eligibility, but it changes the economics by shifting export into higher-paying windows.
So the funding story for storage is really a payback story. Combine the 0% VAT saving up front with smart export payments and higher self-consumption, and a battery pays for itself over time rather than through a grant.
Handling the battery grant question with customers
Lead with honesty and then redirect to value. Confirm there is no standalone battery grant, explain the 0% VAT relief running to 31 March 2027, and only mention ECO4 or the Warm Homes: Local Grant where the household is plausibly eligible (GOV.UK, 2026). Overpromising a grant that does not exist is the fastest way to lose trust and a deposit.
Then build the numbers around payback. A retrofit battery on an existing solar system benefits from the VAT relief, raises self-consumption and improves export earnings, and correct battery sizing is what turns that into a return the customer can see. Keeping the quote, the eligibility checks and the sizing in one place, whether in a spreadsheet or a tool such as Reonic, makes that conversation faster and more credible.
It also helps to document the reasoning. A short note in the quote that records the VAT treatment, any eligibility checks for ECO4 or the Warm Homes: Local Grant, and the export tariff you have assumed protects you if a customer later claims they were promised a grant. Installers who put that in writing rarely have the conversation twice, and it doubles as evidence if a scheme's rules change before the job completes.
Frequently asked questions
Is there a free solar battery grant in the UK?
No. There is no scheme that gives a household a battery for free on its own. The nearest support is the 0% VAT relief on storage until 31 March 2027, and means-tested schemes such as ECO4 that can fund solar, sometimes with a battery, for eligible low-income homes rather than for anyone who asks (How To Go Solar, 2026).
Do batteries qualify for 0% VAT on their own?
Yes. Since 1 February 2024 a standalone battery fitted without solar panels qualifies for the same zero rate as other energy-saving materials, covering both hardware and installation as a single supply until 31 March 2027 (GOV.UK, 2026). From 1 April 2027 the rate returns to 5%.
Can I get a battery funded through ECO4?
Only alongside solar. ECO4 lists solar PV as an eligible measure for low-income and fuel-poor households and allows a battery to be installed during that retrofit, but Ofgem does not fund the battery as a standalone measure (Ofgem, 2026). Eligibility is usually established through benefits or a local authority referral.
Does the Boiler Upgrade Scheme pay for batteries?
No. The Boiler Upgrade Scheme pays £7,500 towards an MCS-certified heat pump in England and Wales and does not cover battery storage (Ofgem, 2026). Batteries are funded instead through the VAT relief, higher self-consumption and Smart Export Guarantee payments over the life of the system.
Is a solar battery worth it without a grant?
Often yes, on payback rather than grant funding. The 0% VAT relief cuts the upfront price, while higher self-consumption and Smart Export Guarantee payments of around 15p per kWh on the best fixed tariffs in 2026 build the return over time (The Eco Experts, 2026). Correct sizing to the home's usage is what makes the case stack up.
