BDx CGK4 Starts 640MW AI Campus Build

BDx CGK4 has moved from an infrastructure plan into construction: BDx Data Centers broke ground on September 22 for a 640MW AI campus in Jatiluhur, West Java. The first of six planned buildings is designed for 120MW of IT capacity, with an initial contracted phase expected to enter service in early 2027.

Key takeaways

The campus has 845MVA of secured grid capacity from Indonesian utility PLN.
Construction begins with a 120MW building and is planned across six buildings over roughly three years.
Direct-to-chip liquid cooling is designed to support rack densities up to 500kW, according to BDx.

What the BDx CGK4 groundbreaking actually starts

The September 22 milestone is physical execution, not merely a capacity announcement. BDx says the 111,000-square-metre Jatiluhur site will be developed in phases, with six buildings and 640MW of planned IT load. Business Times and TechNode Global independently reported that the first building is intended to supply 120MW and begin serving its first contracted phase in early 2027.

That sequencing matters because data-centre capacity is not available when land is purchased or a power agreement is signed. It becomes usable only after substations, cooling loops, halls, network routes and customer deployments are commissioned together. The groundbreaking therefore starts the conversion of reserved inputs into sellable compute capacity.

Why power and cooling are the gating resources

BDx lists 845MVA of PLN utility supply for CGK4. The difference between apparent power in MVA and sellable IT load in MW covers power factor, conversion losses, cooling and other facility loads; the figures should not be treated as interchangeable. The company also says direct-to-chip liquid cooling will support racks requiring up to 500kW.

That density changes campus economics. More compute can fit into each hall, but the facility needs carefully engineered coolant distribution, electrical redundancy and heat rejection. This is the same infrastructure constraint behind Lapaas Voice coverage of NVIDIA Australia AI infrastructure and NTT DATA AI infrastructure operations: chip availability is only one layer of an AI deployment.

What buyers should verify before counting capacity

Customers should separate four milestones: secured power, construction start, energisation and contracted service. BDx has disclosed the first two and a target for the first contracted phase, but later buildings still depend on construction and commissioning. Buyers also need evidence for redundancy, water use, renewable supply and network diversity at the phase they intend to occupy.

The quotable bottom line: BDx CGK4 is a phased infrastructure build, so the meaningful near-term unit is the first 120MW building—not the full 640MW campus headline. The larger number describes the planned ceiling; the early-2027 target describes the first customer-facing step.

The regional consequence

CGK4 expands Indonesia’s ability to host high-density AI workloads domestically instead of exporting every training or inference job to another market. BDx operates the Indonesian platform with Indosat Ooredoo Hutchison and Lintasarta, giving the campus a route into local telecom and enterprise demand. Its phased engineering also invites comparison with the Huawei 3D data centre in Wuhu, where facility design is part of the compute story.

That can support data-residency strategies, but sovereignty still depends on who controls the hardware, software, encryption keys and operating procedures. A local building is an important physical layer, not the whole governance stack. The project will be judged by commissioned capacity, customer deployments and operating efficiency rather than by groundbreaking-day specifications alone.

Facts at a glance

Item	Verified detail
Disclosure	September 22, 2026
Planned IT load	640MW across six buildings
Secured grid supply	845MVA from PLN
First building	120MW; initial service targeted for early 2027