UK departments at odds over energy demands of AI datacentres
Summary
Two UK government departments disagree on how much electricity AI datacentres will use by 2030. The Department of Science, Innovation and Technology (DSIT) predicts AI datacentres will consume 6 gigawatts (GW), while the Department of Energy Security and Net Zero (DESNZ) estimates less than one-tenth of that amount. This disagreement highlights challenges in planning for energy use and emissions as the UK aims to grow its AI sector while meeting climate goals.Key Facts
- DSIT expects AI datacentres to need 6GW of electricity by 2030.
- DESNZ forecasts the growth in energy use for the entire commercial services sector to be 528 megawatts (MW) between 2025 and 2030, much lower than DSIT’s figure for AI datacentres alone.
- The UK government plans to build AI growth zones, each requiring about 500MW of electricity.
- DSIT revised its estimate of AI datacentres’ carbon emissions upwards from below 0.05% to 0.9-3.4% of the UK's projected emissions over ten years.
- DESNZ says datacentre emissions are included in the government's official carbon budget plans, with a new carbon budget release expected soon.
- An NGO, Foxglove, raised concerns about the environmental impact of datacentres and the government’s awareness.
- The discrepancy between the two departments’ figures is unclear, causing uncertainty in UK energy and climate planning.
- The AI Energy Council is working on attracting investment and supporting clean power development for datacentres.
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