Trevallyn No.1 machine back on track

5 October 2022

Hydro Tasmania is committed to investing in its portfolio of generating assets, which include the recently refurbished No. 1 machine at Trevallyn Power Station.

This station, which was commissioned in 1955, houses four Francis turbines that provide a total average energy contribution of 450 GWh per year to the system. This represents approximately 5 per cent of Hydro Tasmania’s average annual output of 9,000 GWh.

The $17.5m refurbishment of the No. 1 machine has increased its lifespan, allowing it to produce clean, renewable energy for another 30 years. The upgrade has also resulted in a 5 per cent increase in machine efficiency, meaning it can now produce more electricity with the same amount of water.

The machine was returned to service in September.

Hydro Tasmania plans to spend approximately $100m - $110m per annum for the next 10 years bringing out the best in its significant asset portfolio.

Hydro Tasmania CEO Ian Brooksbank said maintaining the long-term capability of the Tasmanian hydropower system remained critical to delivering renewable energy for the state, and for the National Electricity Market.

“Refurbishing an asset of this size and complexity is no easy feat. It involved a full machine strip down to the spiral casing, and then a rebuild which included a new control system, excitation system, governor, and electrical protection,” Mr Brooksbank said.

“So I want to congratulate the team on their hard work over the past 21 months to complete this significant project, one of several that our Assets & Infrastructure division is delivering.”

Hydro Tasmania and its consulting firm Entura completed the refurbishment work of the No. 1 machine with the assistance of many other Tasmanian companies including PSL Project Services, RBD Electrical, and Tamar Engineering.

 

Ends.

Released for Hydro Tasmania by Duncan Abey / 0409 722 359 / media@hydro.com.au

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