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STT Seoul 1

ST Telemedia Global Data Centres (STT GDC) · Seoul · Seoul Metro · South Korea

Design resilience tier
III
Redundancy (as published)
2 diverse and redundant 22.9kV utility power supplies; Distributed Redundant Uninterrupted Power Supply (UPS); N+1 Emergency Generators equipped with underground fuel tank providing up to 24hrs of support at full load; Designed to UTI Tier III and TIA-942 Rated-3 standard; Concurrently maintainable; Fault tolerant; Resilient Chilled Water Plant with Cooling Towers with N+1 configuration; N+2 Fan Wall Units (factsheet vJuly2026); Uptime Institute Tier III Certification of Design Documents (TCDD) (press release 16-06-2026)
Floor area
39,595 m² total building
Security
24/7 on-site security
Rack density
12 kW

Platform research · Recorded 18 Oct 2026 · Recent

Density (as published)
Built with a high-power density of up to 12kW per rack without supplemental cooling for improved cost efficiency. (kr-en/locations/seoul; same on kr/locations/seoul); built with a high-power density of up to 150kW per rack without supplemental cooling for improved cost efficiency. (kr/services/colocation, 18-10-2026)
Power band
20–50 MW

Platform research · Recorded 18 Oct 2026 · Recent

Availability
Availability on request

Imported · Recorded 08 Jun 2026 · Not recent

Cross-connect
On request
PUE note
Design PUE of <1.3 (factsheet vJuly2026)
Services
Colocation, connectivity and hybrid cloud
Certifications 2
TIA-942LEED

Location

View on the full map · Elevation 13 m above sea level

Aerial view of STT Seoul 1
Aerial view of the site. Imagery MapTiler, OpenStreetMap contributors.

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