Pumped hydro potential for Tasmania


Coal is retiring, and new sources of renewable energy like wind and solar are becoming more plentiful. As our energy mix changes, we need to maintain the reliability, stability and security of the electricity system. Energy storage is needed to "fill the gaps" and provide a stable, reliable electricity system.

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

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

Please take a look through our FAQs below and get in touch with our team at pumpedhydro@hydro.com.au if there’s something else you’d like to know. 

Pumped hydro feasibility study FAQ

  • What happens next?

  • Are you building more transmission lines?

  • Are you considering projects in the World Heritage Area?

  • Are you planning to dam any more rivers?

  • What impacts will pumped hydro have on local waterways?

  • What about future access to Lake Cethana?

  • What's in it for Tasmanians by building all of this renewable energy?

  • Why is more interconnection important?

  • What jobs will be created?

  • What is the efficiency of pumped hydro?

  • What was the outcome of the pre-feasibility study?

  • How can I provide feedback?

How can I provide feedback?

We welcome views from the Tasmanian community and will continue to keep you informed as studies progress.

We welcome your suggestions on the best way to provide project updates or for you to contact us with questions you may have.

Send your feedback to pumpedhydro@hydro.com.au or call 1300 360 441