NK MehtaBritain wants more data centres, but its electricity grid has struggled to keep up. Now the government is offering a deal. In his first Budget on 28 October 2026, Chancellor John Healey unveiled a plan that ties UK data centre grid access to clear local commitments.
The idea is simple. Operators that support their communities will move up the queue. In return, they must create jobs, invest locally and protect water supplies. For an industry stuck waiting years for power, this could change how and where new sites get built.
What Is the British Data Centre Covenant?
The British Data Centre Covenant is a new agreement between the government and data centre operators. Under it, operators must meet strict tests on local investment, local employment and water protection. In exchange, critical sites will get the grid connections they need.
There is also a second incentive. Where a connection is delayed, approved projects may build their own on-site power generation while they wait. This matters because a site without power is simply an empty building.
However, several details remain unclear. The Budget speech did not define what makes a data centre “critical.” It also did not set numerical thresholds for the tests, and it did not say which energy sources on-site plants may use. Those specifics are expected in later Treasury documents.
Why Grid Access Has Become the Biggest Bottleneck
To understand the covenant, you first need to understand the queue. By the end of June 2025, the demand connection queue had reached roughly 96 GW on the transmission network. A further 29 GW sat on the distribution network. Together, that is about 125 GW of projects waiting for power.
Moreover, the transmission queue grew by around 460% in just six months. Data centres alone accounted for about 140 projects, adding up to nearly 50 GW. As a result, some developers have faced waits of a decade or more.
Not every application is serious, though. The energy department has admitted that some developers reserve capacity they cannot actually build. Consequently, a consultation earlier in 2026 looked at clearing out speculative bids and reserving capacity for strategic projects.
How the Covenant Fits Britain’s Wider AI Plans
The covenant is not a standalone policy. Instead, it sits inside a broader push to grow the UK’s computing power. The government’s compute roadmap says the country needs at least 6 GW of AI-ready data centre capacity by 2030. That is roughly three times what was available when the roadmap was published.
Healey also framed the move around data sovereignty. He argued that Britain’s most sensitive data should stay under UK control. In particular, he pointed to AI used by the NHS to treat patients and by the armed forces.
Alongside the covenant, the Budget included several AI funding measures:
- An extra half a billion pounds for AI safety and security work
- £140 million for the Sovereign AI unit, which backs strategic British firms
- A £15 million AI Challenge Prize, starting with health problems
- £23 million for an AI Economics Institute to study AI’s effect on jobs and growth
Key Facts at a Glance
| Area | Detail |
|---|---|
| Policy name | British Data Centre Covenant |
| Announced by | Chancellor John Healey, Budget, 28 October 2026 |
| Operator obligations | Invest locally, create local jobs, protect water supplies |
| Government offer | Priority grid connections for critical sites |
| Interim power | On-site generation allowed while awaiting connection |
| Demand queue (June 2025) | About 125 GW across transmission and distribution |
| Data centre share of queue | Around 140 projects, close to 50 GW |
| National AI capacity target | At least 6 GW by 2030 |
How the Industry Has Reacted
Early reactions from operators have been largely positive. Stellanor’s managing director, Gary Watson, called the covenant the right deal. He added that operators should earn their place through jobs, skills and responsible water use. Still, he warned that the tests must also work for smaller regional and urban sites, not only giant campuses.
Similarly, Pure Data Centres Group welcomed the focus on prioritising critical projects. Its interim chief executive, Gary Wojtaszek, said responsible developers already invest in local communities. He also offered to help refine the requirements.
Lawyers see both sides of the deal. Kirsty Harrower of Norton Rose Fulbright said the covenant could speed up access to grid capacity and planning. At the same time, she noted that expectations around energy, water and community benefits will rise.
Meanwhile, sovereign cloud provider Civo pushed for more. Its chief executive, Mark Boost, argued that true digital sovereignty means buying from UK-owned providers, not just building more capacity.
Local Concerns: Water, Noise and Land
The covenant’s conditions are partly a response to growing local opposition. Communities often worry about water use, noise and the loss of farmland. In North Devon, for example, developer Xlinks is preparing plans for a large AI campus near Torrington. Residents there have raised concerns about the landscape, battery noise and the area’s protected biosphere status.
By linking grid priority to community benefits, the government hopes to ease that tension. In other words, operators will need to show neighbours real value, not just promises.
What Happens Next
Several steps will decide how much this policy actually delivers. First, the Treasury must publish the detailed criteria. Next, the government needs to confirm which projects qualify as critical. Finally, a long-awaited national planning statement for large data centres is still pending.
For investors and operators, timing is everything. A site that connects earlier starts earning revenue earlier. On the other hand, the covenant adds new costs, including community payments, water management and possibly on-site power plants. Therefore, the real test will be whether faster connections outweigh these extra obligations.
FAQs
What is the British Data Centre Covenant?
It is a new government agreement announced in the October 2026 Budget. Data centres that invest locally, create jobs and protect water supplies can get priority grid connections.
Which data centres will get priority grid access?
Only those deemed “critical.” The government has not yet published a full definition, but the speech linked it to sensitive uses such as NHS and defence AI.
Can data centres build their own power plants?
Yes, where necessary. Approved critical sites may build on-site generation while they wait for a grid connection.
Why is UK data centre grid access so difficult?
Demand has surged far faster than grid capacity. Around 125 GW of projects were waiting for connections by mid-2025, including many speculative applications.
