Operational
Colocation
Liquid cooling
Tier III

NTT DATA Keihanna OSK11

NTT GDC · Keihanna

IT live
30 MW
Free to lease
2.4 MW
$ / kW·mo
$151
White space
60k ft²

Inventory

92% occupied

Power

30 MWlive

2.4 MW to lease · 27.6 MW in use

White space

60k ft²total

4,800 ft² free · 55k ft² occupied

5,574 m² · 446 m² free

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

Power

IT live30 MW
Free to lease2.4 MW
Utility feed37.5 MW
Campus / planned30 MW

About 7.5 MW of the utility feed is cooling, conversion, and house load.

Power cost

$151/kW·mo

17.2¢ industrial · 20.6¢ after PUE 1.20

Per MW·year
$1.8M
This site · 30 MW
$54M/yr
100 kW rack
$15,067/mo
3.2¢ cheapdear 22.4¢

5.4× the cheapest market (Iceland Landsvirkjun). Same IT load there is $44M/yr less.

Japan industrial · utility tariff × PUE, not colo list price.

Redundancy
2N
Opened
2026
Renewable match
50%
Rack density
100 kW
Voltage
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

100 kW

H100-eq

WUE

0.72 L/kWh

fleet avg · 2024 · 189k m³/yr at 30 MW

0 dry2.50 evaporative

Operator fleet average applied to this hall — not a site meter. NTT DATA GDC 2025 Sustainability Report (FY2024).

Direct-to-chip cold plates and rear-door heat exchangers. Designed for GB200/Blackwell-class racks.

Network carriers

5

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

Clouds

5

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

Location

Seika, Kyoto, Japan

Seika, Soraku District, Kyoto

34.743°, 135.782° · Asia

Tenants / users

Generative AI, hyperscale, enterprise GPU

Notes

30 MW AI-ready hall in the Keihanna science city. Opened April 2026. 100 kW/rack design.

Operator site

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