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.
13.02.2026 Italy
16.02.2026 Iceland
17.02.2026 France
19.02.2026 Sweden
23.02.2026 Switzerland
23.02.2026 Denmark
24.02.2026 Italy
19.03.2026 Bulgaria
24.03.2026 Italy
31.03.2026 Ireland
23.04.2026 Sweden
24.04.2026 United Kingdom
04.05.2026 Switzerland