Great British Energy is the publicly owned clean-energy company the government created to speed Britain’s shift to home-grown power. It is not an energy supplier, it will not appear on your bill, and it will not — at least not directly, and not soon — cut what you pay each month.
The gap between what GB Energy was sold as and what it actually is is the key to judging whether it will work. Here’s what it does, what it doesn’t, and an honest read on its chances.
What is Great British Energy, exactly?
Great British Energy (GBE) is a state-owned company set up to invest in, develop and help build clean-energy projects across the UK. First floated by Keir Starmer at Labour’s 2022 conference, it became a flagship pledge at the 2024 election and was formally established by the Great British Energy Act 2025, which received royal assent in May 2025. It is headquartered in Aberdeen.
GBE sits at arm’s length from the Department for Energy Security and Net Zero (DESNZ), with its own board and operational independence, but it is ultimately answerable to the Energy Secretary.
Its remit is deliberately broad: take equity stakes in clean-power projects, invest in the supply chains behind them — cables, turbines, components — back community and local energy schemes, and crowd in private capital for projects the market considers too early or too risky to fund alone.
It also forms part of a wider machine. The government’s “Clean Power 2030” mission, run through a separate delivery unit, aims for clean sources to provide the overwhelming majority of Britain’s electricity by the end of the decade. GBE is one of the vehicles meant to help get there.
In short, GBE is closer to a state-backed investor and developer than to anything a household directly interacts with. That distinction matters more than any other fact about it.
What Great British Energy is not (and the bill myth)
The single biggest misconception is that GBE is a public energy supplier — a state-run rival to British Gas or Octopus that will sell you cheaper electricity. It isn’t. It holds no supply licence, it will not send you a bill, and “switching to Great British Energy” is not something you can do.
That is why the political row over household bills has been so muddled. Labour campaigned on a promise to cut typical bills by £300, and ministers have repeatedly associated GBE with that goal. But GBE has no mechanism to lower your bill directly.
Any savings are meant to arrive indirectly and over years — by adding cheaper renewable generation to the grid and reducing Britain’s exposure to volatile gas prices, which are what actually set electricity prices here. Even the £300 figure rests on a 2023 think-tank analysis whose own author has since told the BBC it needs updating to reflect today’s costs.
If your goal is to cut your bill this year, GBE is the wrong place to look. That’s the territory of switching, efficiency upgrades and the grant schemes available now — which our sister site Meterwise covers in practical, step-by-step detail. GBE is playing a much longer game.
How it’s funded, and who runs it
The government has committed £8.3 billion to GBE over the course of this Parliament, drawn partly from an increased windfall tax on oil and gas profits and partly from borrowing.
The start-up board is chaired by Juergen Maier, the former chief executive of Siemens UK, supported by a slate of non-executive directors appointed in early 2025. Dan McGrail — previously head of the renewables trade body RenewableUK — was named interim chief executive at the start of 2025 and confirmed as permanent CEO that July, working from the Aberdeen headquarters. A separate nuclear arm, Great British Energy – Nuclear, is led by Simon Roddy and is charged with delivering the UK’s first fleet of small modular reactors.
It’s worth being clear-eyed about the money. £8.3bn is a real commitment, but a modest one against the scale of the task — and against the publicly owned energy companies GBE is routinely compared to, such as Denmark’s Ørsted or Sweden’s Vattenfall, which were built up over decades into major generators. GBE is starting almost from scratch.
What has Great British Energy actually done so far?
This is where the picture gets more concrete — and more favourable to the project than its sharper critics allow.
Its first major project, announced in 2025, was around £180 million to install rooftop solar on roughly 200 schools and 200 hospitals in England, with the resulting savings reinvested into those institutions.
A second wave, delivered through regional mayors, extended funding to community buildings: rooftop solar for care homes and leisure centres in the Liverpool City Region, libraries and emergency-service buildings in Greater Manchester, and leisure facilities across North Yorkshire — each projected by the government to save millions over the assets’ lifetimes.
Beyond buildings, GBE has earmarked around £1 billion for clean-energy supply chains, components such as electrical cables and floating offshore wind platforms, with the stated aim of building more of the transition in Britain rather than importing it. In February 2026 it published its Local Power Plan, the framework for funding community-owned renewable projects, and it has signed partnerships with The Crown Estate (to unlock offshore wind seabed) and the National Wealth Fund.
So GBE is not vapourware. A year on from the Act, it has a permanent CEO, a board, a headquarters being fitted out in Aberdeen, a project pipeline and visible early wins. The fair criticism is not that it has done nothing — it’s whether what it’s doing will amount to something the private sector wouldn’t have delivered anyway.
So, will it work?
That depends entirely on the yardstick you use.
If the test is “will it cut my bill soon,” it is already failing and was always going to. By mid-2026, opponents in Parliament were pointing out that, years after the pledge, GBE had not taken anything off household bills, while typical bills had risen rather than fallen.
The rollout also drew political fire over the sourcing of some solar panels. These are potent attack lines — but they judge a long-term infrastructure investor by a consumer-supplier standard it was never designed to meet.
If the test is “will it accelerate clean power and build UK industry,” the verdict is genuinely open. The strongest case for GBE is structural.
A state-owned company can borrow more cheaply than private developers, take patient stakes in projects too early or too risky for the market, and capture the returns for the public rather than for the foreign state-owned utilities that already own large slices of British generation. Supporters point to Ørsted and Vattenfall as proof the publicly owned model can work at scale.
The strongest case against is twofold. First, overlap and value for money: the UK already runs a National Wealth Fund, and previously the UK Infrastructure Bank, doing adjacent work, prompting analysts to ask what GBE adds beyond a brand, a board and a head office.
Second, scale and speed: £8.3bn is small against the hundreds of billions the transition requires, and a new public body risks moving slower than the developers it is meant to turbocharge.
There’s also a sharper critique gaining traction across the political spectrum, including from Tony Blair’s institute, that the clean-power mission has over-indexed on the speed of decarbonisation rather than the cost of power, and that bills won’t meaningfully fall until the link between gas prices and electricity prices is broken.
On that reading, GBE risks being a well-built answer to a slightly wrong question, if cheaper power is the real prize.
The bottom line
Great British Energy is real, it is funded, and it is delivering early projects — so the “it doesn’t exist and does nothing” line doesn’t hold up. But it was sold to voters in the language of cheaper bills while being built as a long-horizon public investor, and that mismatch is the source of most of the disappointment now attached to it.
The honest way to judge GBE is over a decade, not a winter. Does it crowd in private money, build supply chains in Britain, and own assets that return value to the public? Two years on from the pledge, it has motion and a credible structure.
Whether that becomes measurable impact — on the grid, on UK industry, and eventually on the gas-set price that drives bills — is the question that will define it. The most accurate verdict today is also the least satisfying: too early to tell, but no longer too early to take seriously.
Frequently asked questions
Does Great British Energy supply my home?
No. GBE is not a licensed energy supplier and does not sell electricity or gas to households. You cannot switch to it the way you would switch to Octopus or British Gas.
Will Great British Energy lower my energy bills?
Not directly, and not in the short term. It aims to bring bills down indirectly over several years by adding cheaper home-grown renewable generation and reducing the UK’s reliance on imported gas. To cut your bill now, switching and efficiency measures are the faster route.
Where is Great British Energy based?
Aberdeen, Scotland, at the Marischal Square development.
How much money does Great British Energy have?
£8.3 billion committed over the current Parliament, funded partly by an increased windfall tax on oil and gas profits and partly by government borrowing.
Who runs Great British Energy?
Juergen Maier, the former CEO of Siemens UK, chairs the start-up board, and Dan McGrail, former chief executive of RenewableUK, is the permanent CEO.
Sources:
- Great British Energy — official site and announcements (gbe.gov.uk)
- “Great British Energy to cut energy bills for community facilities,” GOV.UK
- Great British Energy Act 2025, UK Parliament (bills.parliament.uk)
- “Source of Miliband’s energy bill pledge casts doubt on savings,” BBC News
- “What Labour’s Great British Energy can’t do,” The Conversation
- “Great British Energy: 12 months on,” Energy Saving Trust
- “How the UK government aims to break the link between gas and electricity prices,” Carbon Brief
