Indonesia's Data-Center Boom Is a Cooling Problem in Disguise
Batam and West Java are building at hyperscale speed. The grid — and the aquifers — may not keep up.
The Silicon Coast
Hyperscalers have found Indonesia. AWS, Microsoft, Google, Alibaba, Tencent — each has committed multi-billion-dollar campuses in Jakarta, West Java, or Batam.
The numbers
- Announced capacity through 2028: over 1.6 GW of IT load. - Grid capacity in the relevant provinces: strained even before crypto and AI demand. - Water consumption for evaporative cooling at tropical humidity: materially higher than at temperate-latitude campuses.
The unglamorous constraint
Cooling. In Jakarta's climate, air-side economization is off the table nearly year-round. Direct liquid cooling helps but requires purpose-built halls. Retrofitting a 2019-vintage colo is not fast.
What to watch
- Batam's export-processing zone electricity carve-out. - West Java groundwater licensing decisions in 2026. - PLN's willingness to guarantee 99.99% for hyperscale loads on a grid that still trips.
The buildings will get built. Whether they run at nameplate is the actual question.
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