Granny Smith Project Stats:


Diesel Power Station

Prior to utilising gas a power source, Gold Fields relied on diesel power for their operations at the Granny Smith Mine Site


Granny Smith Mine

The Granny Smith Mine is an underground gold mining operation located 740km northeast of Perth, Western Australia. Operated by Gold Fields, the deposit was discovered in 1979 and in 1989 mining commenced on site with the first gold being poured the year after.

Currently, Wallaby is the operation’s active mine, with mining administration and maintenance located nearby. The annual production of the Wallaby mine is in-excess of 250,000 ounces per year.


Gas Power Station

In 2016, Aggreko worked with Gold Fields to design, install and operate a 22MW Gas Power Station at the Granny Smith Mine that would displace the diesel power generation on site.

The Gas Power Station used fuel drawn from the new gas extension, powered by new gas-fired Osprey engines. Ultimately, this meant Gold Fields could make significant cost savings while reducing their carbon footprint at the same time.


Solar Plant

As the mining industry continues to undergo a significant energy transition moving towards renewable power solutions, Aggreko continued to work closely with Gold Fields to devise a power strategy that would introduce renewable power without comprising any reliability.

And so, began the journey to integrate 7.7MWp of solar power generation and 2MW / 1MWh battery storage with the existing gas supply as a hybrid power station - under one contract and with no capital outlay.


Battery Storage System

Evolving the energy mix at the Granny Smith Mine Site.

Working with Gold Fields to reduce carbon, lower cost of energy and maximise efficiency

  • Over 10 years ago we first partnered with Gold Fields to provide supplementary diesel power generation on site.
  • In 2016 we designed, constructed and provisioned a 22MW gas power station for the next 10 years to offer significant fuel savings as well as reduction in carbon dioxide emissions.
  • In 2020 we completed the integration of 7.7MWp of solar power and 2MW / 1 MWh battery storage creating one of the world’s largest renewable microgrids. The unique energy package combines solar, thermal and battery storage that’s seamlessly integrated and managed by our powerful software platform.