NEXTDC S2 Sydney: 30MW Tier IV Fault-Tolerant AI Hub

Status: Operational / High-Density Expansion (April 2026) | Location: 6-8 Giffnock Avenue, Macquarie Park NSW 2113

Project Overview

As of April 2026, NEXTDC’s S2 Sydney facility stands as one of the most resilient and strategically important digital infrastructure assets in the Southern Hemisphere, reinforcing Sydney’s role as a critical hub for Asia-Pacific cloud and AI workloads. Designed as NEXTDC’s first Tier IV certified data center in New South Wales, S2 delivers 100% fault tolerance through fully redundant systems, ensuring continuous operation even under multiple simultaneous failure conditions. The 30MW campus is engineered to support both ultra-high-density AI compute and traditional enterprise workloads, balancing flexibility with performance at scale. At its core, the facility utilizes an isolated parallel bus architecture integrated with Piller Power Systems’ rotary UPS systems, enabling uninterrupted power delivery and stable cooling performance even during complete utility outages. As part of NEXTDC’s A$2.2 billion capital investment plan announced in April 2026, S2 is currently undergoing internal retrofitting to enhance its “AI Factory” capabilities, including denser rack configurations and improved thermal efficiency systems. The upgrade also strengthens its interconnection role within the Macquarie Park ecosystem, enabling direct, low-latency cross-connects to the adjacent S1 and S3 facilities. Together, these campuses form a unified 150MW+ super-cluster designed to meet the rising demand for sovereign AI infrastructure and hyperscale cloud expansion across Australia.

Quick Facts

Field	Value
Project Name	NEXTDC S2 Sydney: 30MW Tier IV Fault-Tolerant AI Hub
Location	6-8 Giffnock Avenue, Macquarie Park NSW 2113
Status	Operational / High-Density Expansion (April 2026)
Commissioning	Initial Launch: 2018; Full Capacity Reached: 2024
Total IT Load	30.0 MW
Total Capacity	4,500+ Racks across 8,700 $m^2$
Tier Level	Uptime Institute Tier IV (Design & Construct)
Project Type	Hyperscale & Enterprise AI-Ready Hub

City Profile

Header	Details
City Name	macquarie park
Population	~15,000–20,000
Urban Agglomeration	Part of Sydney metro area: ~5.3 million
City GDP	Not separately reported; contributes to Sydney’s GDP (~USD 500+ billion for the metro economy)
Per Capita Income	Estimated high relative to national average; Sydney metro per capita income ~AUD 60,000–70,000 annually
City Tier	Not applicable as a standalone city; considered a major commercial/tech precinct within a Tier-1 global city (Sydney)
Key Strengths	Major technology and business hub (often called “Australia’s Silicon Valley”)

Companies Involved

Header	Details
Developer / Operator	NEXTDC
Strategic Infrastructure Partner	Uptime Institute Tier IV Standard / NVIDIA DGX-Ready.
Construction Contractor	FDC Construction & Fitout.
MEP Engineering	$N+1$ and $2N$ Redundancy; Fully Fault-Tolerant systems.
Network Connectivity	Direct Cloud On-ramps; Campus link to S1 and S3.
Power Infrastructure	30 MW IT Capacity; 1.5MW Piller Rotary UPS units.

Technical Specifications

Header	Details
Power Capacity	30.0 MW
UPS Redundancy	Tier IV Fault-Tolerant (Isolated Parallel Bus).
Cooling System	Stulz Indirect Free Cooling + Modular Cooling Towers.
Connectivity	Core Sydney hub for the "S1-S2-S3" Macquarie Park Cluster.
PUE Target	1.29 (Yearly Average) / 1.15 (Yearly Lowest)
Energy Mix	100% Carbon Neutral (Climate Active Certified).

Milestones

Header	Details
Announcement	April 20, 2026 (Record Contracted Growth Announcement)
Construction Start	2017
Phase 1 Go-Live	Operational
Full Buildout	2024 (Operations & Retrofitting for AI)

Investment Details

Header	Details
Total Investment	A$150M+ (Phase 1); A$300M+ (Full Build)
Funding	ASX: NXT Capital / Pro-rata Accelerated Entitlement Offer.