The Cat 793 XE Early Learner battery-electric haul trucks deliver all the performance of its diesel-powered siblings without the noise, vibrations, and harmful emissions – and now, they’re being put to the test at BHP’s iron ore mine in Australia.
Part of a collaborative effort between BHP and Rio Tinto to help decarbonize BHP’s Jimblebar iron ore mine in the Pilbara, these 240-ton Cat 793 XE Early Learner electric haul trucks represent a major step toward a more sustainable future in mining, designed to deliver zero exhaust emissions while maintaining productivity and performance.
“Powering up our first battery-electric haul trucks in the Pilbara is an important step forward on the mining industry’s road to decarbonization,” says BHP Western Australia Iron Ore Asset president, Tim Day. “Replacing diesel isn’t just about changing energy sources, it’s about reimagining how we operate and creating the technologies, infrastructure, and supply chains to transform mining operations. These trials will help us understand how all the pieces of the puzzle fit together: the battery technologies, generation and charging infrastructure, power management, as well as the supply chains to potentially deliver this at scale.”
Like the two trucks deployed at Newmont’s Cripple Creek and Victor mine in Teller County, CO last year, this phase of Caterpillar’s Early Learner program will see the company attempt to integrate multiple electrified trucks at a single site with remote operators, validating the integration of a battery electric fleet with CAT’s existing autonomous and fleet management systems.
Decarbonisation of Pilbara iron ore operations will rely on technology advancements and breakthroughs in research and development, which is why BHP and Rio Tinto are working closely with Caterpillar to accelerate their fleets’ transition to electric power.
That, and the fact that they’re watching global mining giants Fortescue slash hundreds of millions of dollars from their operating costs by switching to electric, and (presumably) want to get in on that action sooner than later.
Despite the urgency, however, they need to get it right or risk huge disruptions that will eat up any projected efficiency gains. “A significant shift like this demands a strong commitment to research and development, coupled with collaboration across the industry,” adds Day. “This is going to take time to get right, which is why trials like this one with Rio Tinto and Caterpillar are so critical.”
Caterpillar 793 XE Early Learner
The big Caterpillar haul truck is powered by a 564 kWh lithium iron phosphate (LFP) battery pack that sends electrons to a 480 kW (645 hp) electric motor that kicks out an undisclosed amount of torque – but which is more than capable of hauling 250 tons of truck and payload at the same 38 mph to speed as its 2,650 hp diesel-powered bretheren.
The best part: in the right conditions, a heavily-loaded haul truck can rely on regenerative braking to keep it topped off, enabling ’round-the-clock operation without the need to stop and charge – a trick diesel trucks absolutely cannot match.
SOURCE | IMAGES: Caterpillar, via Heavy Equipment Guide.
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