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Kao Data Harlow Campus

Operational

Kao Data Campus, London Road, Harlow, CM17 9NA

Kao Data Harlow Campus is a data center in Harlow, United Kingdom, operated by Kao Data, with 17.6 MW of published IT capacity, currently operational.

Kao Data's first and largest UK campus in Harlow, Essex — two operational 8.8MW buildings live today, scaling toward a 71MW full build.

Kao Data Harlow Campus — schematic illustration
Schematic illustration based on published specifications, not a photograph · air-cooled · in operation
Operator
Kao Data
City
Harlow, United Kingdom
Power, MW
17.6 MW
Cooling
Air
Floor space
14,000 m²
AI-ready
Yes
BREEAM ExcellentOCP-Ready
E

Coloprice Score

33 out of 100

Class E · #32 of 81 in United Kingdom

  • Resilience0/35
  • Compliance4/20
  • Transparency9/20
  • Scale13/15
  • Maturity7/10
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Kao Data Harlow Campus — Coloprice Score 33
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Kao Data's flagship campus sits on London Road in Harlow, Essex, on a 15-acre site with 61,000 sqm of total campus space and 14,000 sqm of technical space split into 16 technology suites of 850 sqm each across four buildings. KLON-01 and KLON-02 (8.8MW each) are operational, bringing the campus's live capacity to 17.6MW; KLON-03 (17.6MW) is under development and KLON-04 (36MW) is planned, taking the campus toward a stated full-build target of 71MW and longer-term potential of 150MW. The campus runs on free-air cooling with an SLA-backed PUE of 1.2, is powered by 100% renewable energy with HVO-fuelled backup generators, and is built to BREEAM 'Excellent' with an OCP-Ready facility designation aimed at hyperscale and AI customers. Harlow was Kao Data's first UK site and remains its largest, anchoring the company's position in the M11/Stansted corridor as an alternative to the crowded Slough/West London cluster for enterprise, cloud and AI workloads needing wholesale-scale power.

  • ▮Four buildings (KLON-01–04): 17.6MW live today, 71MW at full build, 150MW long-term potential
  • ▮61,000 sqm campus, 14,000 sqm technical space in 850 sqm suites
  • ▮Free-air cooling, SLA-backed PUE of 1.2, 100% renewable power
  • ▮BREEAM 'Excellent' and OCP-Ready certification
  • ▮Kao Data's first and largest UK campus, M11/Stansted corridor

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Data release:

Source — Verified against operator sources · data pending on-site verification