Another major achievement for the Snowy 2.0 pumped-hydro project, breaking through the final three meters of the 223-m long transformer hall cavern crown. When completed, the transformer hall and 251-m long machine hall will house the Snowy 2.0 power station and will be one of the largest and deepest caverns in the world, about 800 metres underground.
Click here and au/38 for further information in the tunnelbuilder archive. Also visit https://www.nsw.gov.au/ and https://www.snowyhydro.com.au/. 01/24.
09.12.2025 Belgium
09.12.2025 Italy
09.12.2025 Switzerland
10.12.2025 Belgium
16.12.2025 Iceland
17.12.2025 Italy
06.01.2026 France
23.01.2026 Switzerland