Investigating Tasmania’s pumped hydro potential

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Coal is retiring, and new sources of renewable energy like wind and solar are low cost and becoming more plentiful. But they are variable so energy storage is needed to help fill the gaps and maintain the reliability and stability of our electricity supply. That’s where Tasmania can help!

We’ve been assessing Tasmania’s pumped hydro development opportunities around the state.

In August 2019, we announced the start of a feasibility assessment of pumped hydro development opportunities at Lake Cethana and Lake Rowallan in the North-West and near Tribute Power Station on the West Coast.

These sites were identified as the three top priority pumped hydro opportunities from a $2 million pre-feasibility study jointly funded by the Australian Renewable Energy Agency (ARENA) and Hydro Tasmania.

We have been gathering more detailed information through our feasibility study and assessing the suitability of each site for development. These opportunities were assessed on a range of technical, environmental, social and economic factors.


Lake Cethana selected as preferred pumped hydro site

Lake Cethana has been selected as Hydro Tasmania’s preferred site of its top three Tasmanian pumped hydro opportunities and it will now progress to final feasibility.

Deep storage capacity, greater cost and technical certainty, environmental and social sustainability and flexibility in sizing and capacity make Cethana the preferred to finalise feasibility.

Community information sessions

Thank you to everyone who attended our community drop-in sessions held in Sheffield, Moina and Lorinna. Our pumped hydro team enjoyed chatting with local residents about the project and sharing more information on our study progress and next steps.

Lake Cethana

Pumped hydro frequently asked questions

Investigating Tasmania's pumped hydro potential

  • Selecting a pumped hydro site

  • What is planned for the Cethana pumped hydro project?

  • Next steps

  • What is pumped hydro?

  • Why do we need pumped hydro?

  • Do you have questions?