Environmental permit grantedMTU

Colt Data Centre Services UK Limited data centre in Hayes, United Kingdom

Latest document dated 30 Jul 2025, from Environment Agency. Official document

Location of the project in Europe. Grey dots: other projects in the index.

backup generators: 46
MW of generator thermal input: 283

The backup fleet in the filing

Each block is one generator set: 46 in all.

Timeline

Public documents for this project, and what our daily checks found.

30 Jul 2025
Environmental permit granted
Environment Agency. Official document
9 Nov 2026
Official document online at our check
Checked every day since 9 Nov 2026.
Licence Display windows, objection deadlines and every amendment, with page references

The record

Standby Atlas recordGB-LND-HAYES-COLT-HAYES

Location: Hayes (Brook Industrial Estate), United Kingdom
Operator or project company: Colt Data Centre Services UK Limited
Stage: Environmental permit granted
Filing date: 30 Jul 2025
IT load: Not stated in the filing
Grid connection: Not stated in the filing
Backup generators: 46
Generator thermal input: 283 MW
Engine makes named: MTU

Source: Environment Agency. Checked on 9 November 2026.

This record as JSON

What the licences add for this project

Exact engine models, abatement, fuel storage and permitted hours in the Backup Fleet licence; the dated history of every filing; grid and on-site power; and, from February 2027, ownership graded by evidence. Or order this project as a dossier for €490.

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