Site · Shared context
Kao Data KLON-05 Northolt Data Center
Operating / Stabilized · Northolt, England, United Kingdom
Shared participant: Kao DataSame market: England, United Kingdom
All records
Data center siteSite record
Kao Data Harlow Campus
Harlow, England, United KingdomPartially operational
Capacity
71 MW
Planned critical IT
Lead participant
Kao Data
Developer
Last updated
Aug 28, 2026
Most recent public record update
About Kao Data Harlow Campus
Kao Data Harlow has two operating buildings, a third in development and a fourth planned. The 71 MW four-building ITE design is publishable; the separate 150 MW future concept and reported £230 million financing remain clearly scoped as campus context. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.
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Projects sharing a market, utility, or organization.
Site · Shared context
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Operating / Stabilized · Slough, England, United Kingdom
Shared participant: Kao DataSame market: England, United Kingdom
Site · Shared context
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Shared participant: Kao DataSame market: England, United Kingdom
Capacity
Planned critical ITOperating capacity—An operating IT-capacity figure has not been publicly disclosed.
It Load71 MWDesign · Kao Data Harlow Campus
Design71 MWDesign · Kao Data Harlow Campus
Development
1 phases · 1 milestonesOperating facility and documented expansionOperational
Kao Data Harlow has two operating buildings, a third in development and a fourth planned. The 71 MW four-building ITE design is publishable; the separate 150 MW future concept and reported £230 million financing remain clearly scoped as campus context. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.
Aug 29, 2026
Project-specific source review refreshed
CompletedInfrastructure
Electric GridOperational
71 MW
71 MW is the published four-building Harlow ITE design; a separate 150 MW future expansion concept is not part of this headline.
FiberOperational
Carrier-neutral or resilient fibre connectivity is described for the individual facility.
Cooling SystemOperational
Cooling architecture supports the stated lifecycle; actual tenant draw and instantaneous load remain undisclosed.
Project map
0 of 1 project point mappedInfrastructure facts
3
Mapped records
1
Capacity figures
1
No map point available
Power & interconnection: 1Cooling & water: 1Fiber & connectivity: 1
Facts & sources
Published claims and their source links.
Location ContextKao Data Harlow | Harlow | England | GBActual
Kao Data Harlow | Harlow | England | GB
Lifecycle StatusPartially operationalActual
Partially operational
Reported Capacity71 MWDesign
71 MW
Capacity BasisKao Data publishes 71 MW for this project boundary.Actual
Kao Data publishes 71 MW for this project boundary.
Location ContextKao Data Harlow | Harlow | England | GBActual
Kao Data Harlow | Harlow | England | GB
Lifecycle StatusPartially operationalActual
Partially operational
Reported Capacity71 MWDesign
71 MW
Capacity Basis71 MW is the published four building Harlow ITE design; a separate 150 MW future expansion concept is not part of this headline.Actual
71 MW is the published four building Harlow ITE design; a separate 150 MW future expansion concept is not part of this headline.
Operator ConfirmedKao DataActual
Kao Data
Project LocationHarlow, England, GBActual
Harlow, England, GB
Current LifecyclePartly operating with phased delivery or expansion underwayActual
Partly operating with phased delivery or expansion underway
Capacity ClassificationDesignActual
Design
Capacity Basis71 MW is the published four building Harlow ITE design; a separate 150 MW future expansion concept is not part of this headline.Actual
71 MW is the published four building Harlow ITE design; a separate 150 MW future expansion concept is not part of this headline.
Customer UtilizationNot publicly disclosedActual
Not publicly disclosed
Identity BoundaryThis facility or named campus is tracked separately from adjacent buildings and broader operator portfoliosActual
This facility or named campus is tracked separately from adjacent buildings and broader operator portfolios
Source Refresh Date2026-08-29Actual
2026-08-29
Facility Count4 facilitiesDesign
4 facilities
Reported Financing£230,000,000Closed Financing
£230,000,000