Snowy 2.0

A project to help Australia’s renewable energy transition from fossil fuels to clean energy

Hydropower Plants

Start of works

April 2019

Progress status


Data updated to April 2021

Snowy Mountains, Australia
SDG Obiettivi di sviluppo sostenibile
Affordable and Clean energy Affordable and Clean energy
Climate action Climate action

Snowy 2.0 will be an expansion of a network of hydro power stations in the Snowy Mountains Hydro-electric Scheme operated by Snowy Hydro Ltd, helping underpin Australia’s renewable energy future.

Commissioned by Snowy Hydro Ltd , Snowy 2.0 will increase by 2,000 megawatts (MW) the generating capacity of the Snowy Mountains Hydro-electric Scheme, which currently stands at 4,100 MW. It will also triple Snowy Hydro’s pumping capabilities. Snowy Hydro supplies the National Electricity Market at times of peak demand, as more renewable energy sources enter the country’s grid, hydro power will help keep the lights on when the wind is not blowing or the sun is not shining.

Webuild (Salini Impregilo) signed in its capacity as leader of the Future Generation joint-venture  with a combined 65% stake along with its U.S. subsidiary, Lane (10%). Australia’s Clough is the other member of the JV.

Under the terms of the contract, the Group will link the existing Tantangara and Talbingo dams by excavating a series of tunnels and building a hydroelectric power station with pumping facilities located nearly one kilometre underground.

Technical data

Km of tunnels (excavations with TBM)


m3 of power house complex excavation


m3 of earthworks


South Australia has become a global test case in high renewables integration, with around 50% of generation sourced from wind and solar. But this is not enough, as wind and solar generation are extremely variable and unpredictable. This makes large-scale storage options — for example, pumped hydro facilities — a vital part of any future renewables mix.



Advantages and benefits of the work

Co2 emissions avoided per year

10,033,000 t

Installed capacity

2,000 MW