Science & health
U.K. AI data centres may rely on gas power as grid delays threaten climate goals
Four planned hyperscale data centres in the U.K. are considering gas-fired generation while waiting for grid connections, according to a BBC investigation. The projects could require 1.3 gigawatts and produce an estimated 4.1 million tonnes of carbon emissions annually if run continuously. The government’s new covenant offers priority connections and permits temporary onsite generation in exceptional cases, while officials argue that stopping development would cost jobs and increase reliance on foreign infrastructure. Developers say they intend to connect to the grid and reduce fossil-fuel use when capacity becomes available.
Editorial summary · Publisher article
What matters
- Ofgem says developers are seeking 72 gigawatts of connections, compared with peak national demand of 45 gigawatts last year.
- Some projects face waits of up to a decade for grid upgrades, including a proposed 200-megawatt gas plant in Buckinghamshire.
- A proposed Bedfordshire data centre could draw 1 gigawatt, equivalent to roughly 200,000–250,000 average U.K. homes.
The policy trade-off
The government says data centres support essential digital services and economic growth, but environmental critics warn that onsite gas generation could create local pollution, noise and water pressures while making net-zero targets harder to reach.
Context & caveats
- The 4.1-million-tonne estimate assumes continuous full-capacity operation; all four projects say they plan to move to national-grid power when available.
Why this made the edition
The investigation supplies project-level details, emissions calculations, grid-demand data, named critics and the government’s response. It directly addresses the tension between AI infrastructure expansion and the U.K.’s emissions and energy constraints.
Source material