Metronode Data Center, Unanderra

Tetra Tech’s High Performance Buildings Group provided mechanical, electrical, fire protection, fire engineering, communications, acoustics, security, and sustainability consulting services for the Metronode Data Center in Unanderra, Australia.


  • Size: Total floorspace 11,796 square meters (126,970 square feet)
  • Construction Cost: AUD$18 million (USD$12 million)
  • Client/Owner: Metronode Pty Ltd as part of the Nextgen Group of companies (Now owned by Equinix)
  • Architect: DEM
  • Completion Date: 2013


Following from the successful award of Metronode’s first development in Sydney, this facility was commenced in parallel to allow Metronode to deliver two identical facilities with adequate distance, separation that was required as part of a tender award for one of the anchor tenants of the facility. The initial implementation of this site was for two data hall modules, with capacity to expand to a total of ten modules over five construction stages. The innovative BladeRoom design and resulting engineering services design provided by Tetra Tech for the balance of services and plant deliver a high system efficiency and performance with a Performance Utilization Effectiveness (PUE) 1.17.

The service infrastructure has been designed in a block redundant scheme, with each block of data halls consisting of 2 megawatt (MW) power modules supported by a 2MW redundant module. This arrangement offers both an efficient and resilient design that meets the requirements of current-day, mission-critical facilities. The facility also has been benchmarked against the Uptime Institute Tier III design with the facility being certified for design and operation, reinforcing the system robustness and reliability expected of a world-class, mission-critical facility.

The Tetra Tech design team met the various design constraints and challenges associated with this project including:

  • Staged power delivery allowing initially for a low voltage distribution strategy that will be augmented in the future to 11 kilovolts (kV) with minimal impact on site infrastructure and operational performance
  • Management of strict acoustic requirements for the site
  • Compliance with NABERS requirements for the technical office areas
  • Coordination of in-ground services systems that allow for future expansion

The project was successfully completed to the full satisfaction of the client and data hall tenants within a tight time and cost delivery program.