Aggreko to Deliver 25.9MW Solar PV/Generator Hybrid to Mine in Chile

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  • Global power solutions company, Aggreko, will provide a 25.9 MW hybrid solution for gold mine in Chile which sits at altitude of 4500m.
  • The system is made up of 16 MW of thermal and 9.9 MW solar PV.
  • The project will deliver USD 7.4 million cost of energy savings in the next 10 years and a further $1.1m in carbon tax savings.

Aggreko has signed a contract with Gold Fields, global mining operator, to provide a total of 25.9 MW hybrid solar and thermal power solution to the Salares Norte open pit mine in Chile. This ground-breaking solution has been designed to provide power for the entire mine, which sits at an altitude of 4,500m in the Andes mountain range and is 190km from the nearest town.

The hybrid system will comprise both tailor-made high-altitude performance diesel gensets and Aggreko Solar Power units, optimized for off-grid applications and ready to meet the extreme wind conditions these units will experience. The gensets will each deliver 772 kW and will incorporate Spinning Reserve and Cold Reserve units to efficiently manage peaks in demand. This diesel generation system will be integrated with solar units, which, once installed, will provide 9.9 MW of cost and emission free power.

The system will deliver a reliable, modular power supply across all five of the mine’s distribution points, whilst surpassing the Chilean government’s environmental standards as well as Gold Fields’ requirement for a minimum of 20% renewable power generation for mining operations.

Once complete, it will achieve USD 7.4 million in cost of energy savings over the next decade and a further $1.1m in carbon tax offset over the Aggreko project lifetime in addition to 104,000 tonnes of carbon emissions savings. The modular rental solution also supports a consolidated CAPEX outlay, allowing for greater cost control and variable commitments whilst ensuring continued operational excellence at the mine.

Commenting on the news, Pablo Varela, Latin America Managing Director from Aggreko said: “As the energy transition continues to gather pace, our customers are increasingly looking for more flexible power solutions which can reliably support operations whilst reducing carbon emissions and lowering costs. Hybrid products, such as the one we are deploying for Salares Norte, enable a reliable and flexible power supply whilst reducing carbon emissions, thanks to the incorporation of Aggreko Solar Power units as part of the system. Having a standardised product such as this provides the kind of consistency and reliability which our customers have come to expect from us.”

The 10-year contract between Aggreko and Gold Fields for power generation at the mine represents the strong working relationship between the companies, and follows a history of successful collaborations globally, such as the recent installation of one of the world’s largest renewable microgrids at Gold Fields’ Granny Smith mine in Western Australia. At full capacity, Salares Norte will produce an average of 450,000oz of gold per year with Aggreko as the sole power provider.

Author: Bryan Groenendaal


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