All nations are establishing emissions reduction targets for 2030 as part of their efforts to address the challenges posed by climate change through various policies and initiatives. In Australia, mining represents a crucial sector and plays a central role in the global decarbonisation movement. However, material haulage operations are the primary source of emissions within mining activities. This paper explores the current alternatives to traditional diesel-powered haul trucks, focusing on trolley and battery-electric powertrains as potential solutions for decarbonising mining haulage systems. A case study in mining was developed to compare these applications using the Well-to-Wheel (WTW) analysis method. This approach evaluates their environmental benefits and assesses whether they can help mining companies meet their emission reduction targets in the short-medium term. A new term, Equivalent Emission Factor (EEF), is introduced as a comparative standard for evaluating the emission reduction effectiveness of these alternatives. The results of the mining case study simulation indicate that Hybrid Diesel Trucks (HDT) perform exceptionally well in reducing emissions under the 2023 emission factor conditions, particularly in regions with a higher concentration of coal-fired power plants. In contrast, battery-electric alternatives are expected to outperform HDT as the share of renewable energy increases in these regions. Ultimately, battery-electric alternatives emerge as the most promising option among all alternatives, due to their high energy efficiency and reliance on fully electric power in the 2030 scenarios. The research findings will assist mining decision-makers in formulating effective strategies for the adoption of various mining truck alternatives, thereby maximising environmental benefits in their decarbonisation journey.
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