NEXTDC S3 Sydney: 80MW Tier IV AI-Ready Flagship
Status: Operational / Accelerated Fit-out (April 2026) | Location: 2 Broadcast Way, Artarmon NSW 2064
Project Overview
As of April 20, 2026, NEXTDC’s S3 Sydney facility has emerged as the operational core of the company’s expanding AI infrastructure strategy in Australia. Positioned as a 9-level high-rise data center, S3 is engineered for extreme power density, sovereign data control, and hyperscale readiness, making it a flagship asset within NEXTDC’s national portfolio. As part of the broader A$2.2 billion capital investment program announced in 2026, the facility is undergoing accelerated fit-outs across its remaining data halls, specifically designed to accommodate large-scale GPU clusters for AI and machine learning workloads serving hyperscale tenants.
Technically, S3 is built for high availability and resilience, incorporating 2.7MW Piller Power Systems rotary UPS systems paired with MTU diesel engine backup units to ensure uninterrupted power delivery under all operating conditions. Its vertical design enables efficient land use while supporting high-density compute environments that are increasingly required for real-time AI inference and large-scale model training.
Strategically located less than 10km from the Sydney central business district, S3 provides ultra-low latency connectivity, making it highly suitable for financial services, government workloads, and AI-driven applications requiring rapid response times. It is seamlessly interconnected with the S1 and S2 facilities in the Macquarie Park cluster, forming a metro-redundant, high-capacity digital fabric across Sydney’s northern corridor and reinforcing the city’s position as a leading Asia-Pacific AI infrastructure hub.
Quick Facts
| Field | Value |
|---|
| Project Name | NEXTDC S3 Sydney: 80MW Tier IV AI-Ready Flagship |
| Location | 2 Broadcast Way, Artarmon NSW 2064 |
| Status | Operational / Accelerated Fit-out (April 2026) |
| Commissioning | Stage 1 Go-Live: 2022; Main Works Completed: June 2023 |
| Total IT Load | 80.0 MW |
| Total Capacity | 20,000 $m^2$ of technical space; 10,800+ Racks |
| Tier Level | Uptime Institute Tier IV Certified (Design & Construct) |
| Project Type | High-Rise Hyperscale AI Factory |
City Profile
| Header | Details |
|---|
| City Name | Artarmon |
| Population | ~9,000–10,000 |
| Urban Agglomeration | Sydney Greater Metropolitan Area: ~5.3 million (approx.) |
| City GDP | Not separately available for Artarmon |
| Per Capita Income | Not separately published for Artarmon |
| City Tier | Developed-country major metro suburb |
| Key Strengths | Strong connectivity via rail (Artarmon Station on Sydney Trains network) |
Companies Involved
| Header | Details |
|---|
| Developer / Operator | NEXTDC |
| Strategic Infrastructure Partner | Uptime Institute Tier IV / Operational Sustainability Gold. |
| Construction Contractor | Multiplex. |
| MEP Engineering | $N+1$ Electrical; $N+2$ CRAC units per hall; Fault-Tolerant. |
| Network Connectivity | Campus mesh to S1/S2; Direct Cloud on-ramps. |
| Power Infrastructure | 80 MW; 24-hour on-site fuel; Iso-Parallel Bus. |
Technical Specifications
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| Power Capacity | 80.0 MW |
| UPS Redundancy | Tier IV Fault-Tolerant (Full Mechanical/Electrical Backup). |
| Cooling System | Vertiv Indirect Free Cooling + Modular Cooling Towers. |
| Connectivity | Primary high-density node for NSW sovereign AI workloads. |
| PUE Target | < 1.15 (Design Target) |
| Energy Mix | 100% Carbon Neutral (Climate Active Certified). |
Milestones
| Header | Details |
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| Announcement | April 20, 2026 (Record Contracted Growth Update) |
| Construction Start | 2020 |
| Phase 1 Go-Live | 2022 |
| Full Buildout | 2026+ (Active Tenancy Fit-outs) |
Investment Details
| Header | Details |
|---|
| Total Investment | A$1 Billion+ (Estimated Full Build) |
| Funding | A$1.5bn Entitlement Offer / A$2.2bn Capital Plan (April 2026). |