How well evidenced is it
Running capacity. The site is operational or expanding. The rules are fixed and published on the Methodology page.
Named funderYes
Disclosed clientNo
Committed or approved capitalNo
Dated, sized phaseYes
Three or more sourcesYes
Dated source in the last 24 monthsYes
AI workloads
StatusNo signal either way
no cooling/density/tenant signal published
Phases
Defu 1 · Operational13 MW, target 2016
Defu 2 · Operational13 MW, target 2018
Defu 3 · Operational15 MW, target 2022
Who is behind it
OperatorST Telemedia Global Data Centres · Colocation
Funder, EquityKKR
Funder, EquitySingtel
No tenant disclosed. Most colocation leases are confidential, so this says nothing about occupancy.
Platform deals that include it
STT GDC S$1.75B raise (KKR-led + Singtel)
Platform capital, 2024-06US$1.3bn
KKR + Singtel acquisition of STT GDC (platform M&A)
Platform acquisition, 2026-09-01US$5.1bn
Platform capital spans several sites. It is never added to this project's own figure.
Water and cooling
WaterMains drinking water · PUB domestic supply; NEWater pipework readiness Confirmed source ↗ 2 x 300,000 L make-up water tanks
CoolingWater-cooled chillers · design PUE 1.4 Confirmed source ↗ STT Singapore 1 (21 Defu Ave 1): 2N chilled water plant with 2N cooling towers, CRAH