Emissions Modelling for Life of Mine

Emissions Modelling for Life of Mine

In FY2018 we undertook a study to model future emissions of our DeGrussa and Monty operations for life of mine based on our expected energy requirements. This was identified in FY2017 as a mitigative control to the risk of regulatory changes within Australia including whether we would trigger the Australian government’s Safeguard Mechanism[1]

The study found that based on current knowledge we are unlikely to trigger the Safeguard Mechanism however, this will continue to be monitored.  In addition, the study aimed to provide insight into our emissions profile with the inclusion of Monty and the use of solar. We intend to update this model every year with current information about our operations and any regulation changes. Along with future projections, the model will help us see the effectiveness of measures implemented to reduce emissions 

The study also looked at two alternate scenarios: one being what our emissions intensity would have looked like without the solar project and one with solar but without Monty. We found that in the first scenario, our emissions intensity would have likely increased to nearly 70 kilograms of CO2-e per tonnes of copper produced, while in the second scenario we would have achieved our emissions intensity reduction target this year.

 

[1] http://www.cleanenergyregulator.gov.au/ERF/About-the-Emissions-Reduction-Fund/the-safeguard-mechanism