GB Energy and Solar Panels: What It Actually Funds

Great British Energy (GB Energy) shows up constantly in solar headlines — a £200 million rooftop programme for schools and the NHS, and, in August 2026, an £8.875 million investment in a British solar-thermal manufacturer. It's easy to assume some of that money is available to homeowners. It isn't. GB Energy is a publicly owned investment company, not a grant scheme, and none of its funding so far has gone directly to individual households. This guide explains what GB Energy actually is, what it has funded, and — because you're almost certainly here looking for help paying for solar — where the real homeowner funding sits.

What is GB Energy?

Great British Energy is a publicly owned clean energy company, established by the Great British Energy Act 2025 (Royal Assent 15 May 2025) and headquartered in Aberdeen. Its remit is to invest in and help develop clean energy projects across the UK — generating returns for the taxpayer while accelerating the rollout of renewables, in support of the government's Clean Power 2030 target. It sits alongside existing schemes like the Warm Homes Plan and ECO4 rather than replacing them — GB Energy is an investor and project developer, those are the actual household funding routes.

What GB Energy has funded so far

GB Energy's solar activity to date falls into two categories: public-sector rooftop solar, and, more recently, backing UK manufacturing.

£200 million for schools and the NHS

GB Energy's first major project, announced in March 2025, committed £200 million to install rooftop solar across roughly 400 public sites: around 200 schools (£80 million), around 200 NHS sites (£100 million), plus smaller allocations for local authorities, community energy groups, and public buildings in Scotland, Wales and Northern Ireland (£12 million and £9.3 million respectively). The programme targets 70–100 MW of solar capacity, with government estimating lifetime savings of up to £400 million for schools and the NHS over around 30 years. An early tranche of 11 schools was projected to save around £175,000 a year between them once panels were fitted. Chesterfield Royal Hospital's installation — over 4 MW — is one of the largest rooftop systems announced under the programme.

Every site in this programme is a school, hospital or other public building. There is no homeowner application route into it.

£7.5 million into a UK solar-thermal manufacturer

In August 2026, GB Energy — through its Energy Engineered in the UK programme — led an £8.875 million funding round into Naked Energy, a Crawley-based renewable-heat company, contributing £7.5 million alongside Barclays Climate Ventures as an existing shareholder. The money funds a new UK-based automated manufacturing facility for Naked Energy's Virtu solar-thermal collectors, expected to create around 40 direct skilled manufacturing jobs and roughly 100 indirect roles. Naked Energy's technology already runs on landmark UK buildings including the British Library and the All England Lawn Tennis Club at Wimbledon, and includes hybrid solar PVT panels that generate both heat and electricity from the same roof space.

This is industrial investment, not a household product subsidy — GB Energy is backing the manufacturer, not offering money off a homeowner's solar-thermal or PV installation. It does, however, matter for the wider market: more UK-based manufacturing capacity for solar and solar-thermal hardware tends to support supply and, over time, competitive UK pricing. For how solar-thermal technology itself compares with standard photovoltaic panels, see our solar thermal panels UK guide; for how mainstream PV panels are made and by whom, see our guide to solar panel manufacturers.

Why none of this reaches individual homeowners

GB Energy's mandate is investment and project development, not consumer grants. It puts public money into projects — rooftop solar for institutions, manufacturing capacity, larger clean-energy infrastructure — expecting a financial or strategic return, in the way a state-backed investment fund operates. That's structurally different from a grant scheme like the Warm Homes Plan, which is designed to hand funding (or 0% loans) directly to individual households based on income or EPC rating. If you're a homeowner searching for "GB Energy solar panels" hoping for a discount or grant, the honest answer is that one doesn't currently exist — but real funding routes do.

What homeowners can actually apply for

These are the live, homeowner-facing routes to funding solar in 2026 — none of them run through GB Energy:

• 0% VAT on solar PV and battery storage — applies to supply-and-install in Great Britain until 31 March 2027, reverting to the standard reduced rate afterwards. No application needed; it's built into the installer's quote.
• Warm Homes Plan — the government's £15 billion programme (£13.2 billion core Spending Review commitment plus £1.5 billion announced at the Budget), covering grants and loans for insulation, clean heating and, in some routes, solar, aimed at up to 5 million homes by 2030. See our full Warm Homes Plan guide for eligibility and how to apply.
• ECO4 — the supplier-obligation scheme for fuel-poor and low-income households, running to 31 December 2026 (funding is largely allocated late in the year, so apply early). Details in our free solar panel schemes guide.
• Devolved-nation schemes — Scotland's Home Energy Scotland loan (solar PV funded only as part of a heat-pump package, up to £6,000 including a possible £1,250 cashback grant) and Wales's Warm Homes Nest (a free, means-tested package that can include solar PV). See our Scotland and Wales grant guides.
• Interest-free and low-interest finance — some installers and lenders offer 0% finance plans as an alternative to a lump sum. See our interest-free solar panels guide.

For the full picture of every current UK solar grant and funding route, including how they interact, our solar panel grants UK guide is the place to start.

Should you expect a GB Energy homeowner scheme in future?

Possibly, but nothing is confirmed. GB Energy's remit could expand — it has already moved from public-building rooftop solar into manufacturing investment within its first 18 months, and its founding legislation gives it broad scope to invest across the clean-energy sector. But as of August 2026, there is no announced homeowner grant or subsidy scheme from GB Energy, and no timeline for one. Treat any online claim of a "GB Energy solar panel grant for homeowners" with caution — the schemes that genuinely exist are the ones listed above, all administered separately from GB Energy.

If you're ready to look at funding your own solar installation, start with our complete solar panel grants UK guide, or see solar panel costs and savings for what a system typically costs before any funding is applied.