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CAT DEMONSTRATES FIRST BATTERY ELECTRIC LARGE MINING TRUCK
Caterpillar Inc. announced a successful demonstration of its first battery electric 793 large mining truck and a significant investment to transform its Arizona-based proving ground into a sustainable testing and validation hub of the future.
Caterpillar completed development of its first battery electric 793 prototype with support from key mining customers participating in Caterpillar’s Early Learner program. Participants of the program with definitive electrification agreements include BHP, Freeport-McMoRan, Newmont Corporation, Rio Tinto and Teck Resources Limited.
“Our global team came together to develop this battery truck at an accelerated pace to help our customers meet their sustainability commitments,” said Resource Industries Group President Denise Johnson. “This demonstration is a significant milestone, and we are excited for these trucks to get to work at customers’ sites around the world in the near future.”
The Early Learner program launched in 2021 and focuses on accelerating the development and validation of Caterpillar’s battery electric trucks at participating customers’ sites. This approach supports the individual commitments each Early Learner participant has made to reduce and eliminate greenhouse gas emissions from their operations. A primary objective of the program is for Caterpillar to collaborate more closely with its customers as the industry undergoes transformational change through the energy transition.
Early Learner customers came together to witness a live demonstration of Caterpillar’s prototype battery truck on a 4.3-mi. course. During the event, Caterpillar monitored over 1,100 data channels, gathering 110,000 data points per second, to validate simulation and engineering modeling capabilities.
Fully loaded to its rated capacity, the truck achieved a top speed of 37.3 mph. The loaded truck traveled 0.62 mi. up a 10 percent grade at 7.5 mph. The truck also performed a 0.62 mi. run on a 10 percent downhill grade, capturing the energy that would normally be lost to heat and regenerating that energy to the battery.
Upon completing the entire run, the truck maintained enough battery energy to perform additional complete cycles. Mine Site of Future
The prototype truck was built at Caterpillar’s Tucson Proving Ground, located in Green Valley, Ariz.

SuccessfulCaterpillar Demonstrates First Battery Electric Large Mining Truck A view of Caterpillar’s Tucson Proving Ground’s solar field. In support of the energy transition, Caterpillar is investing to transform the proving ground into a working, sustainable “mine site of the future” by installing and utilizing a variety of renewable energy sources. The objective is to implement the same sustainable solutions mining companies will use at their own operations to learn firsthand what it takes to run an electrified mine site and effectively support customers through the changes. see DEBUT page 65 Caterpillar early learner customers attended the demonstration of the company’s first battery electric 793 mining truck.

