To ensure safety and provide adequate support at all five delivery points, Aggreko will supply 30 G3+ diesel gensets. Each genset will deliver 772 kW at 4,500m altitude, with a total de-rated capacity of 23 MW.
Aggreko’s bespoke PV solution goes above and beyond the government and Gold Fields’ environmental and renewable energy standards, and will lead to a saving of $700,000/year in energy costs, and a further $1.1m in carbon tax offset over the project’s lifetime – a total saving of 10,511 tonnes of carbon.
To improve the energy cost and reduce environmental footprint, Aggreko will also install 9.9 MW of solar PV capacity. While the site and its unique geography lends itself to solar PV power, the altitude and extreme wind conditions will call for specially designed units. Aggreko has worked to assess the exact demands, pressures and conditions these units will experience at the site, and has developed a tailor-made solution to withstand these challenges, providing an additional layer of environmentally-friendly power.
The solar PV solution Aggreko will install is comprised of three unique platforms:
Platform 15 - 0.9 MW
Mirador Alto - 5.9 MW
Platform Botadero - 3.1 MW
This unique design involves domed PV structures to deal with extreme wind conditions, together with redesigned inverters to maximise the power production and generator performance. With this ground-breaking configuration, Aggreko will be able to ensure Gold Fields’ energy reliability requirements are met and simultaneously face challenging site conditions.
The resulting hybrid system will be Aggreko’s first hybrid installation in Chile and the company’s largest solar installation in Latin America.
To deploy this solution, Aggreko has worked collaboratively with the customer to structure a tariff payment system based on capacity and effective energy delivery. This approach will also allow for a consolidated CAPEX outlay, allowing for greater balance sheet control while allowing for continued strong operational performance.
The contract agreed with Gold Fields for this project spans 10 years, which is far longer than the average contract terms for projects of this type - another indicator of the strength of the relationship between Aggreko and Gold Fields.