AirTrunk JHB4 Johor Bahru Data Center Campus
Status: Under Development / Announced | Location: 5.59-hectare campus, Iskandar Puteri, Johor Bahru, 79200 Johor, Malaysia
Project Overview
AirTrunk’s JHB4 campus in Iskandar Puteri, Johor Bahru, forms part of the operator's multi-billion-dollar expansion in Malaysia. Delivering over 142 MW of total capacity across 8 high-density data halls and 11,150 square meters of technical area, JHB4 pushes AirTrunk’s total combined Johor platform footprint past 700 MW across its JHB1, JHB2, JHB3, and JHB4 facilities. Engineered specifically to support high-density cloud, generative AI, and liquid-cooled GPU compute clusters, JHB4 incorporates high-efficiency thermal architectures designed to operate with 100% recycled water to minimize municipal water consumption. Power delivery is secured via a permanent 275kV dual feed interconnected directly with the adjacent JHB2 campus substation network, tapping into Tenaga Nasional Berhad’s (TNB) transmission grid. Aligned with Malaysia’s national AI-focused digital infrastructure development framework, JHB4 offers rapid deployment capabilities, a target Power Usage Effectiveness (PUE) of 1.30, and carrier-neutral subterranean fiber paths. Strategically located near the Johor-Singapore Special Economic Zone (JS-SEZ), the facility provides low-latency cross-border transit and scalable compute capacity for global hyperscalers and AI enterprises.
Quick Facts
| Field | Value |
|---|
| Project Name | AirTrunk JHB4 Johor Bahru Data Center Campus |
| Location | 5.59-hectare campus, Iskandar Puteri, Johor Bahru, 79200 Johor, Malaysia |
| Status | Under Development / Announced |
| Commissioning | H2 2027 (Phase 1 Target Go-Live) |
| Total IT Load | 115 MW |
| Total Capacity | 142+ MW (8 high-density data halls across 5.59 hectares) |
| Tier Level | Tier III Equivalent System Architecture |
| Project Type | Greenfield Hyperscale Cloud & AI-Ready Data Center Campus |
City Profile
| Header | Details |
|---|
| City Name | Johor Bahru |
| Population | ~1.7 Million |
| Urban Agglomeration | ~2.5 Million (Iskandar Malaysia region) |
| City GDP | RM 150 Billion (State of Johor) |
| Per Capita Income | ~RM 42,000 |
| City Tier | Tier 1 (Malaysia) / Global Secondary Hub |
| Key Strengths | Proximity to Singapore, abundant land, favorable power costs |
Companies Involved
| Header | Details |
|---|
| Developer / Operator | AirTrunk |
| Strategic Infrastructure Partner | Tenaga Nasional Berhad (TNB), Johor State Government, Malaysian Investment Development Authority (MIDA) |
| Construction Contractor | Leading Regional APAC EPC Prime Contractors & Civil Engineering Partners |
| MEP Engineering | AirTrunk Global Infrastructure Design & Specialized Mission-Critical Engineering Partners |
| Network Connectivity | Carrier-neutral design featuring multiple subterranean concrete fiber vaults, direct dark fiber interlinks to Singapore, and dual Meet-Me-Rooms. |
| Power Infrastructure | Permanent 275kV high-voltage dual feed interconnected directly via the JHB2 transmission switchyard and TNB national grid. |
Technical Specifications
| Header | Details |
|---|
| Power Capacity | 142+ MW gross utility design capacity |
| UPS Redundancy | 2N power redundancy with block-isolated static UPS modules paired with containerized emergency standby generators and bulk fuel reserves. |
| Cooling System | Direct-to-chip liquid cooling manifolds paired with closed-loop cooling systems utilizing 100% recycled water. |
| Connectivity | Carrier-neutral design featuring four physically separated subterranean concrete fiber entry vaults and dual Meet-Me-Rooms. |
| PUE Target | 1.30 |
| Energy Mix | Integrated with Malaysia’s Green Lane Pathway, regional Virtual Power Purchase Agreements (VPPAs), and renewable power tariffs. |
Milestones
| Header | Details |
|---|
| Announcement | April 2026 |
| Construction Start | Late 2026 |
| Phase 1 Go-Live | H2 2027 |
| Full Buildout | 2030 (Phased commissioning across all 8 planned data halls) |
Investment Details
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|---|
| Total Investment | $850,000,000 USD (Part of MYR 12B combined JHB3/JHB4 regional expansion) |
| Funding | Multi-billion-dollar green debt financing and corporate equity backed by Macquarie Asset Management and Blackstone |