Snowy 2.0 Transmission Connection Project
Powering Australia’s Green Future: Geotechnical Expertise in the Snowy 2.0 Transmission Connection Project
Clients: Transgrid, Snowy Hydro
Project Type: Infrastructure – Energy
Snowy 2.0, a groundbreaking project developed by Snowy Hydro in New South Wales is set to become Australia’s largest green energy project and the world’s largest pumped storage plant upon completion.
Douglas is proud to collaborate once again with Transgrid on the Snowy 2.0 Transmission Connection Project (STCP), a Critical State Significant Infrastructure development.
About Snowy 2.0
Snowy Hydro Limited (SHL) is undertaking the largest energy project in Australia. The expansion of the Snowy Mountains Hydro-electric scheme involves linking the existing Tatangara and Talbingo reservoirs through a series of underground tunnels, and the construction of an underground hydro-electric power station.
The scheme will enable dispatch of up to 2,000 MW of on-demand generating capacity to the grid. It will also provide unparalleled long-duration storage (350,000 MWh), which the power system will increasingly require as more coal-fired power stations retire. It will store enough energy to power approximately three million homes for a week.
Douglas Partners‘ Role
As part of the Snowy 2.0 Transmission Connection Project, Douglas is providing independent geotechnical services. This involves assessing the excavatability of rock formations to support the construction of transmission line access tracks and associated tower pads.
Key Services Provided
- Rock Excavatability Assessments: Performing rock excavatability assessments to evaluate the in-situ ground conditions during the construction of approximately 8 km of transmission line access tracks.
- Excavation Documentation and Material Estimation: Documenting excavation activities and estimating the proportion of different rock types removed daily.
- Ground Condition Challenges and Observations: Identifying challenges related to various ground materials and providing observations to ensure excavation practices align with the assessed rock conditions.
Navigating Complex Geological Landscapes
Given the varied and challenging geological conditions in the Snowy Mountains region, this project requires a detailed understanding of the in-situ ground materials, including the identification and classification of rock strength, defect spacing, and excavatability. Douglas’ geotechnical assessments are critical in ensuring that excavation methods are tailored to the ground conditions, optimising both construction efficiency and safety.
This project not only highlights Douglas’ expertise in managing complex geotechnical challenges but also reflects a broader market trend where Douglas is increasingly being appointed to superintendent-type roles on major government infrastructure projects.
A Commitment to Sustainable Development
Douglas is committed to supporting projects that drive sustainable development and renewable energy. Snowy 2.0 represents a significant milestone in Australia’s journey towards a greener future, and we are honoured to play a role in its realization.
For more information visit our geotechnical and environmental service pages.
