LIVE … lattes of Big Tech capex so far todayLIVE … GWh used by the world's data centres todaySLOUGH 65% of the town's electricity goes to data centresGB GRID 50.8 GW of data centres in the connection queueCAPEX $720–745bn Big Four spend guided for 2026HYPERSCALE 1,136 worldwide, up from 430 in 2018PIPELINE 504 more hyperscale sites plannedUK ~100 new data centres could be built in 5 years2030 945 TWh world data centre demand forecast, IEALOUISIANA 5 GW Meta's planned Hyperion campusWATER 155bn glasses: Google's 2024 consumptionMAPPED 4,004 data centre sites from open data
Data Center Clock

← Back to the clock · updated 26 October 2026

UK data centres in numbers

The UK has 586 listed data centres, the second most of any country after the US (5,037) src. In 2024 data centres in Great Britain used about 4.5 TWh of grid electricity, roughly 2% of the total, up 41% since 2020 src.

Tap a dot to see what's there.

Existing hubs AI Growth Zones Major new projects

Where are they?

77% of GB data centre electricity is consumed in London and the South East src, led by Slough (29% on its own).

How fast is it growing?

NESO forecasts data centre demand reaching about 5.2 GW and just over 20 TWh by 2030 src, more than four times 2024. Meanwhile 50.8 GW of data centre projects are seeking a transmission connection src.

Since September 2024, UK data centres have been designated Critical National Infrastructure src.

See the full interactive →