AirTrunk TOK1 Tokyo East
AirTrunk · TOK1 Inzai
- IT live
- 80 MW
- Free to lease
- 162 MW
- $ / kW·mo
- $149
- White space
- 200k ft²
Inventory
0% occupiedPower
80 MWlive
162 MW to lease · 0 MW in use
White space
200k ft²total
405k ft² free · — occupied
19k m² · 38k m² free
Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.
Power
About 295 MW of the utility feed is cooling, conversion, and house load.
Power cost
$149/kW·mo
17.8¢ industrial · 20.5¢ after PUE 1.15
- Per MW·year
- $1.8M
- This site · 80 MW
- $143M/yr
- 40 kW rack
- $5,977/mo
5.6× the cheapest market (Iceland Landsvirkjun). Same IT load there is $118M/yr less.
TEPCO Chiba · utility tariff × PUE, not colo list price.
- Redundancy
- N+1
- Opened
- 2021
- Renewable match
- 100%
- Rack density
- 40 kW
- PUE
- 1.151.00 ideal · 1.60 typical
- Power source
- TEPCO. Dedicated on-site 66 kV substations. ¥180bn green loan for the 300 MW expansion.
Cooling
Plant
Hybrid
Liquid
Deployed
Rack density
40 kW
H100-eq
—
WUE
—
Operator has not published WUE. Blank, not zero — air-cooled sites still use some water.
Hybrid liquid-and-air for GPU clusters. Campus targeting 300+ MW across ~102 halls on 13 ha. PUE 1.15.
Network carriers
9On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
3Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Inzai, Chiba, Japan
2-chome Makinodai, Inzai, Chiba
35.840°, 140.158° · Asia
Tenants / users
AWS, Google, Microsoft, hyperscale
Notes
Japan's largest hyperscale campus. Live capacity ramping; 300 MW end-state with 2026–28 AI expansion. Largest sustainability-linked DC financing in Japan.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.