Operational
Colocation
Liquid cooling
Tier III

NTT Seoul

NTT GDC · Seoul

IT live
12 MW
Free to lease
1.1 MW
$ / kW·mo
$104
White space
75k ft²

Inventory

91% occupied

Power

12 MWlive

1.1 MW to lease · 10.9 MW in use

White space

75k ft²total

6,750 ft² free · 68k ft² occupied

6,968 m² · 627 m² free

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

Power

IT live12 MW
Free to lease1.1 MW
Utility feed22.5 MW
Campus / planned18 MW

About 10.5 MW of the utility feed is cooling, conversion, and house load.

Power cost

$104/kW·mo

10.8¢ industrial · 14.3¢ after PUE 1.32

Per MW·year
$1.2M
This site · 12 MW
$15M/yr
10 kW rack
$1,041/mo
3.2¢ cheapdear 22.4¢

3.4× the cheapest market (Iceland Landsvirkjun). Same IT load there is $11M/yr less.

KEPCO · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2018
Renewable match
40%
Rack density
10 kW
PUE
1.321.00 ideal · 1.60 typical
Power source
KEPCO. Dual utility feeds.

Cooling

Plant

Hybrid

Liquid

Deployed

Rack density

10 kW

H100-eq

WUE

0.72 L/kWh

fleet avg · 2024 · 76k m³/yr at 12 MW

0 dry2.50 evaporative

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

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

Network carriers

6

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

Seoul, Seoul, South Korea

Seoul, South Korea

37.510°, 127.040° · Asia

Tenants / users

Cloud, enterprise, NTT Cloud

Notes

NTT Seoul wholesale. Pair to Tokyo/Osaka for Japan–Korea DR.

Operator site

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