Operational
Colocation
Liquid cooling
Tier III

AirTrunk OSK1 Osaka West

AirTrunk · OSK1

IT live
20 MW
Free to lease
1.6 MW
$ / kW·mo
$142
White space
83k ft²

Inventory

92% occupied

Power

20 MWlive

1.6 MW to lease · 18.4 MW in use

White space

83k ft²total

6,667 ft² free · 77k ft² occupied

7,742 m² · 619 m² free

Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.

Power

IT live20 MW
Free to lease1.6 MW
Utility feed25 MW
Campus / planned20 MW

About 5 MW of the utility feed is cooling, conversion, and house load.

Power cost

$142/kW·mo

16.2¢ industrial · 19.4¢ after PUE 1.20

Per MW·year
$1.7M
This site · 20 MW
$34M/yr
20 kW rack
$2,838/mo
3.2¢ cheapdear 22.4¢

5.1× the cheapest market (Iceland Landsvirkjun). Same IT load there is $27M/yr less.

Kansai Electric · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2023
Renewable match
80%
Rack density
20 kW
PUE
1.201.00 ideal · 1.60 typical
Power source
Kansai Electric (KEPCO). Dual feeds. Seismically isolated building.

Cooling

Plant

Hybrid

Liquid

Deployed

Rack density

20 kW

H100-eq

WUE

Operator has not published WUE. Blank, not zero — air-cooled sites still use some water.

Hybrid CRAH plus CDU-fed direct-to-chip loops for high-density AI cabinets.

Network carriers

7

On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.

Clouds

3

Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.

Location

Osaka, Osaka, Japan

Osaka West

34.670°, 135.460° · Asia

Tenants / users

Hyperscale

Notes

First AirTrunk Osaka building. Companion to the much larger OSK2 East campus.

Operator site

Compiled from public filings, operator pages, and reporting. Not an official operator specification.