NTT Tokyo 1 Heiwajima
NTT DATA · Tokyo
- IT live
- 40 MW
- Free to lease
- 2.8 MW
- $ / kW·mo
- $195
- White space
- 313k ft²
Inventory
93% occupiedPower
40 MWlive
2.8 MW to lease · 37.2 MW in use
White space
313k ft²total
22k ft² free · 291k ft² occupied
29k m² · 2,032 m² free
Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.
Power
About 10 MW of the utility feed is cooling, conversion, and house load.
Power cost
$195/kW·mo
18.4¢ industrial · 26.7¢ after PUE 1.45
- Per MW·year
- $2.3M
- This site · 40 MW
- $93M/yr
- 6 kW rack
- $1,169/mo
5.7× the cheapest market (Iceland Landsvirkjun). Same IT load there is $77M/yr less.
TEPCO extra-high voltage · utility tariff × PUE, not colo list price.
- Redundancy
- 2N
- Opened
- 2000
- Renewable match
- 20%
- Rack density
- 6 kW
- PUE
- 1.451.00 ideal · 1.60 typical
- Power source
- TEPCO.
Cooling
Plant
Air / CRAH
Liquid
Not deployed
Rack density
6 kW
H100-eq
—
WUE
0.72 L/kWh
fleet avg · 2024 · 252k m³/yr at 40 MW
Operator fleet average applied to this hall — not a site meter. NTT DATA GDC 2025 Sustainability Report (FY2024).
Chilled-water CRAH. Seismically isolated building. Liquid-ready suites being added for AI customers.
Network carriers
9On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
5Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Tokyo, Tokyo, Japan
Heiwajima, Ota-ku, Tokyo
35.587°, 139.743° · Asia
Tenants / users
Financial, cloud, enterprise
Notes
Flagship NTT Tokyo facility. Seismic isolation and dual utility feeds.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.