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Central West pumped hydro infrastructure will supply as much power as Mt Piper power station

There's now more than enough dispatchable clean-energy projects in the Central West to replace the aging Mount Piper coal-fired power station at Lithgow.    

“Clean energy investment in the Central West is really on a roll,” Nature Conservation Council Campaigns Director Dr Brad Smith. 

“Four pumped hydro and battery projects that are in the pipeline will have a combined capacity greater than Lithgow’s Mt Piper coal-fired power station. 

“This is huge step towards cleaning up the electricity sector in NSW and helping the state play its part in limiting climate change to safe levels.” 

Canadian energy giant ACTO Energy [1] announced last week it was applying for funding under the NSW Government’s pumped hydro grant program to build a facility at Yetholme, between Bathurst and Lithgow. [2] 

ACTO’s proposed Central West Pumped Hydro facility will have a capacity of 325MW, and eight hours storage, or a total of 2,600MWh.    

The announcement brings to 1,675MW the amount of flexible generation capacity in the pipeline for in the Central West, which is more than currently provided by Mount Piper coal-fired power station. 

Pumped hydro project projects in the pipeline  

Facility 

Owner 

Location 

Capacity 

Central West Pumped Hydro 

ACTO Energy  

Yetholme (Bathurst) 

325 MW 

Lake Lyell  

Energy Australia  

Lithgow 

350 MW 

Great Western Battery 

Neoen  

Lithgow (Wallerawang) 

500 MW 

Wellington South battery 

AMPYR  

Wellington South 

500 MW 

  

  

TOTAL 

1,675 MW 

  

“The Mount Piper power station can produce up to 1,400 MW, although on heatwave days the maximum output of coal power stations tends to be lower,” Dr Smith said.   

“The four new energy storage projects have the advantage of being able to store energy as well as generate electricity, meaning they can help the grid by soaking up cheap solar power on sunny days and storing it for later use.  Coal power stations don't help in that situation.” 

References  

[1] https://www.atco.com/en-ca.html 
[2] Canadian energy giant advances 2,600MWh pumped hydro project near Bathurst, Renew Economy, 14-10-21 

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