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NSW Department of Planning, Industry and Environment
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The Snowy 2.0 and Transmission Project is a proposed expansion of the generating capacity of the Snowy Mountains Hydro-electric Scheme. The project involves the construction of a hydro power station that sits approximately 800 metres underground and is about 240 metres long – the equivalent of two football fields.

 

It would link the two existing Snowy Scheme dams, Tantangara and Talbingo, through 30 kilometres of underground tunnels to an underground power station. The project will involve major upgrades to the NSW transmission system to connect the proposed power station to major load centres across the state.

 

Once complete, the project will add 350 gigawatt hours of energy storage and 2,000 megawatts of generation capacity to the NSW grid, which is enough to power 500,000 homes during peak demand.

 

Up to six applications are expected to be submitted for the project, with Snowy Hydro seeking approval for all electricity- generating works and TransGrid seeking approval for all the electricity transmission infrastructure required to connect the proposed power station to major load centres across the state.

 

Snowy 2.0 was declared Critical State Significant Infrastructure (CSSI) in March 2018. For further information on the assessment process please visit our Major Projects website.

 

Project stages

The department has currently received the following applications:

Page last updated: 21/05/2020