Market comparison
London, United Kingdom vs Slough, United Kingdom
Both columns are built from the catalog and the price index: London — 54 facilities from 21 operators, Slough — 17 facilities from 7 operators. Where a benchmark or a tariff is not published, the cell says so.
London, United Kingdom
54
Tracked facilities · Operators: 21
Wholesale benchmark, $/kW/month: not published
Slough, United Kingdom
17
Tracked facilities · Operators: 7
Wholesale benchmark, $/kW/month: not published
Markets side by side
| Field | London | Slough |
|---|---|---|
| Tracked facilities | 54 | 17 |
| Operators | 21 | 7 |
| Published IT capacity | 1,039 MW (27 of 54 sites publish) | 186 MW (6 of 17 sites publish) |
| Operational | 44 | 16 |
| Under construction / announced | 10 | 1 |
| Tier III+ certified sites | 1 | 0 |
| Sites with any certification | 29 | 9 |
| Liquid-cooled sites | 6 | 1 |
| AI-ready sites | 7 | 1 |
| Wholesale benchmark, $/kW/month | not published | not published |
| Benchmark change, yoy | not published | not published |
| Industrial power tariff, $/kWh | $0.454 | $0.454 |
| Average Coloprice Score | 28/100 across 54 sites | 30/100 across 17 sites |
| Latency between the two | not published | |
Counts are the Coloprice catalog as of 2026-09-26; benchmarks are the Colocation Price Index (Q3 2026). Operators publish some facts and not others — an empty cell means «not published», not zero.
Where they differ
Only fields both sides publish and where the values are not identical. This is not a judgement: the right choice depends on the workload, the contract and the site.
- Tracked facilities: London — 54; Slough — 17
- Operators: London — 21; Slough — 7
- Published IT capacity: London — 1,039 MW (27 of 54 sites publish); Slough — 186 MW (6 of 17 sites publish)
- Operational: London — 44; Slough — 16
- Under construction / announced: London — 10; Slough — 1
- Tier III+ certified sites: London — 1; Slough — 0
- Sites with any certification: London — 29; Slough — 9
- Liquid-cooled sites: London — 6; Slough — 1
- AI-ready sites: London — 7; Slough — 1
- Average Coloprice Score: London — 28/100 across 54 sites; Slough — 30/100 across 17 sites
Top facilities by score
London, United Kingdom
- VIRTUS LONDON2 (Hayes) VIRTUS Data Centres · 12 MW
- Iron Mountain LON-1 Iron Mountain · 8.7 MW
- Iron Mountain LON-2 Iron Mountain · 27 MW
Slough, United Kingdom
- Equinix LD5 Equinix
- Equinix LD4 Equinix
- Equinix LD6 Equinix
Open London data centers →Open Slough data centers →Colocation pricing in London →Colocation pricing in Slough →
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