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Snowy 2.0 Pumped Storage Project

Project Overview

Snowy 2.0 is the next generation of the iconic Snowy Mountains Hydroelectric Scheme, and construction of this major pumped-hydro project is well underway. Once complete, the Scheme will provide 2000 megawatts of dispatchable, on-demand renewable power and approximately 350,000 megawatt hours of large-scale energy storage to the Australian National Electricity Market.

From a technical and engineering perspective, this project is at the forefront of international hydropower technology and design, attracting input and interest from global specialists across a range of fields. Snowy 2.0 also presents geographical and environmental challenges due to its remoteness and alpine location within (and below) the Kosciuszko National Park.

With over 27km of waterways designed to withstand extreme water pressures, Snowy 2.0 is a nationally and internationally-significant project being built by Snowy Hydro’s principal contractor Future Generation Joint Venture, a partnership between Italy’s tunnelling expert Webuild (formerly Salini Impregilo), Australian construction company Clough and US-Based Lane.

The scheme acts like a giant battery by absorbing, storing and dispatching energy, Snowy 2.0 will pump water using electricity at times of low demand and store it in the upper reservoir then, when energy is needed most, the stored water will be used to generate and dispatch electricity within minutes. Pumping water at times of low demand means that Snowy 2.0 will have water ready to use for power generation at times when consumers need it most.

Technical Area:
Snowy Hydro Limited
‘SMEC was the obvious choice to partner with us on the study, given we share the same DNA. It really is a case of getting the band back together.’

Paul Broad
CEO Snowy Hydro

Our Role

In 2017, SMEC was engaged by Snowy Hydro Ltd to conduct the feasibility study, subsequent reference design and tender assessment. Following the successful approval of the project, SMEC’s technical specialists have been engaged as the Owner’s Team for the project, providing technical advice from internationally recognised specialists and engineering support to help deliver this iconic and innovative renewable energy scheme.

SMEC’s team is providing advice and support on critical project activities such as the Factory Acceptance Testing and Site Acceptance Testing for the TBMs, collaborative value engineering activities, critical review of design packages and on-site technical presence on behalf of Snowy Hydro during construction.

Key services delivered by SMEC to Snowy Hydro to date include:

  • Feasibility and Reference Design
  • Pre-tender support and advisory services during the Early Contractor Consultation Phase and Tender Assessment
  • Development of an innovative ‘Geotechnical Baseline Report’ for outlining fair and balanced risk-allocation mechanisms between the project owner and contractor
  • Owner’s Team

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