STT Seoul 1 Gasan
STT GDC · Gasan
- Planned IT
- 30 MW
- Free to lease
- 24 MW
- $ / kW·mo
- $96
- White space
- 94k ft²
Inventory
20% occupiedPower
30 MWlive
24 MW to lease · 6 MW in use
White space
94k ft²total
75k ft² free · 19k ft² occupied
8,710 m² · 6,968 m² free
Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.
Power
Power cost
$96/kW·mo
10.8¢ industrial · 13.2¢ after PUE 1.22
- Per MW·year
- $1.2M
- This site · 30 MW
- $35M/yr
- 30 kW rack
- $2,886/mo
3.4× the cheapest market (Iceland Landsvirkjun). Same IT load there is $24M/yr less.
KEPCO · utility tariff × PUE, not colo list price.
- Redundancy
- N+1
- Opened
- 2026
- Renewable match
- 40%
- Rack density
- 30 kW
- PUE
- 1.221.00 ideal · 1.60 typical
- Power source
- KEPCO. Dual utility feeds.
Cooling
Plant
Hybrid
Liquid
Deployed
Rack density
30 kW
H100-eq
—
WUE
—
Operator has not published WUE. Blank, not zero — air-cooled sites still use some water.
Direct-to-chip cold plates and rear-door heat exchangers. Designed for GB200/Blackwell-class racks.
Network carriers
6On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.
Clouds
4Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.
Location
Seoul, Seoul, South Korea
Gasan-dong, Geumcheon-gu, Seoul
37.480°, 126.880° · Asia
Tenants / users
Hyperscale, cloud, AI — JV with Hyosung
Notes
STT + Hyosung 30 MW Gasan hall. Targeted live 2026. Complements Equinix SL2x.
Compiled from public filings, operator pages, and reporting. Not an official operator specification.