Microsoft Japan East
Microsoft Azure · Tokyo / Saitama
- IT live
- 80 MW
- Remaining
- 40 MW
- $ / kW·mo
- $148
- White space
- 200k ft²
Inventory
67% occupiedPower
120 MWcampus
40 MW to commission · 80 MW in use
White space
300k ft²total
100k ft² free · 200k ft² occupied
28k m² · 9,290 m² free
Remaining power is campus IT not yet commissioned — captive capacity, not third-party colo.
Power
About 70 MW of the utility feed is cooling, conversion, and house load.
Power cost
$148/kW·mo
17.2¢ industrial · 20.3¢ after PUE 1.18
- Per MW·year
- $1.8M
- This site · 80 MW
- $142M/yr
- 40 kW rack
- $5,926/mo
5.4× the cheapest market (Iceland Landsvirkjun). Same IT load there is $116M/yr less.
Japan industrial · utility tariff × PUE, not colo list price.
- Redundancy
- 2N
- Opened
- 2014
- Renewable match
- 80%
- Rack density
- 40 kW
- PUE
- 1.181.00 ideal · 1.60 typical
- Power source
- TEPCO. Dual utility feeds. Seismically isolated (免震) building.
Cooling
Plant
Closed-loop liquid
Liquid
Deployed
Rack density
40 kW
H100-eq
—
WUE
0.27 L/kWh
fleet avg · 2025 · 189k m³/yr at 80 MW
Operator fleet average applied to this hall — not a site meter. Microsoft FY2025 water intensity disclosure.
Closed-loop liquid on AI halls; air economization on CPU buildings. Japan East AZs.
Network carriers
7On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
1Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Saitama, Saitama, Japan
Japan East AZs, Greater Tokyo
35.870°, 139.650° · Asia
Tenants / users
Azure, Japanese enterprises, OpenAI inference (partial)
Notes
Microsoft's Japan East region. Separate from the 2026 $10bn AI-sovereign expansion.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.