Construction of UK’s ‘largest supercomputer’ delayed over power supply problems

The Guardian Tech Thursday 24 September 2026, 17:26 UTC By Dan Milmo 1 min read

Key Points

Datacentre hailed by government was supposed to launch next year but may be held back into mid-2030sA huge datacentre project hailed by the UK government will miss its launch date next year and could be delayed into the mid-2030s. The site in Loughton, Essex, was described as the country’s largest AI supercomputer when it was announced in 2025, but power supply problems mean it now faces a lengthy wait before coming online.

Datacentre hailed by government was supposed to launch next year but may be held back into mid-2030s

A huge datacentre project hailed by the UK government will miss its launch date next year and could be delayed into the mid-2030s.

The site in Loughton, Essex, was described as the country’s largest AI supercomputer when it was announced in 2025, but power supply problems mean it now faces a lengthy wait before coming online.

UK (LOCATION) Loughton (LOCATION) Essex (LOCATION) AI (ORG)

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Construction of UK’s ‘largest supercomputer’ delayed over power supply problems

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