Kao Data KLON-03 Harlow
Kao Data · Harlow
- IT live
- 17.6 MW
- Free to lease
- 1.8 MW
- $ / kW·mo
- $153
- White space
- 35k ft²
Inventory
90% occupiedPower
17.6 MWlive
1.8 MW to lease · 15.8 MW in use
White space
35k ft²total
3,520 ft² free · 32k ft² occupied
3,270 m² · 327 m² free
Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.
Power
About 4.4 MW of the utility feed is cooling, conversion, and house load.
Power cost
$153/kW·mo
18.2¢ industrial · 20.9¢ after PUE 1.15
- Per MW·year
- $1.8M
- This site · 17.6 MW
- $32M/yr
- 80 kW rack
- $12,223/mo
5.7× the cheapest market (Iceland Landsvirkjun). Same IT load there is $27M/yr less.
UKPN East · utility tariff × PUE, not colo list price.
- Redundancy
- N+1
- Opened
- 2025
- Renewable match
- 80%
- Rack density
- 80 kW
- PUE
- 1.151.00 ideal · 1.60 typical
- Power source
- UK Power Networks plus operator renewable PPAs. Dual utility feeds.
Cooling
Plant
Direct-to-chip
Liquid
Deployed
Rack density
80 kW
H100-eq
12k
WUE
—
Operator has not published WUE. Blank, not zero — air-cooled sites still use some water.
Direct-to-chip cold plates and rear-door heat exchangers. Designed for GB200/Blackwell-class racks.
Network carriers
6On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
4Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Harlow, England, United Kingdom
London Road, Harlow, Essex
51.778°, 0.096° · Europe
Tenants / users
Nebius, AI clouds, HPC
Notes
17.6 MW GPU hall. June 2026 ten-year Nebius deal for multi-MW AI cloud on renewable power.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.