Cummins scales hybrid-electric haulage retrofit from a Chilean copper mine pilot toward global mining fleets
Cummins says its hybrid-electric retrofit for mining haul trucks, engineered with First Mode and fielded alongside Komatsu at Chile's Caserones copper mine, has moved from possibility to proof.
- More than 1 MW
- 3-9%
- Exceeding 5,000 meters
What Happened
Hybrid haulage has moved from possibility to proof, according to Cummins. Through close collaboration among Cummins, Komatsu and mine operators, the Cummins hybrid-electric retrofit system, enabled by First Mode engineering, is being deployed at the Caserones copper mine in northern Chile. Cummins says the system improves haulage performance while reducing fuel consumption and emissions, without requiring new charging infrastructure or major operational changes. With field deployment underway, the company argues the question is no longer whether hybrid-electric haulage can work in mining, but how quickly the industry can scale it across a broader range of operations.
- The system maintains a familiar operating experience while capturing and reusing energy that would otherwise be lost during braking and downhill operation.
- Its modular architecture is designed to enhance resiliency, allowing the truck to continue operating even if one battery string requires maintenance.
- The system has demonstrated engine load reductions, creating the potential for extended engine life and lower long-term operating costs.
- The deployment was intended to validate whether hybrid-electric haulage could deliver measurable results in a working mine while integrating into day-to-day operations.
Cummins says the deployment also validated performance in one of mining's most challenging environments. Caserones sits high in the Andes Mountains, with steep haul routes, significant elevation changes and demanding operating conditions that place constant stress on haulage equipment; success there provides insight into how hybrid technology can perform across a broad range of mining applications. Field data from Caserones is tracking at or above expectations, with measured field performance closely aligned with the performance models validated at Cummins' proving grounds in Washington State.
Cummins argues the retrofit's appeal extends well beyond any single mine site or region. Unlike many alternative decarbonization pathways, the Hybrid-Electric Retrofit System requires no charging infrastructure, no hydrogen supply and no significant changes to existing mine operations. That flexibility makes it particularly relevant for sites where infrastructure limitations, operational requirements or geographic challenges make full battery-electric deployment difficult in the near term, letting mines pursue measurable reductions in fuel use and emissions with assets already operating in their fleets. For many operators, Cummins says hybrid technology can serve as a practical bridge between today's diesel-powered operations and the low-carbon mine of the future.
Demonstrating technology in the field is only the beginning. Cummins says turning innovation into a commercially successful mining solution requires technical readiness, commercial maturity, manufacturing and supply chain capability and operational support to advance together, along with a robust supply chain, trained service personnel, reliable parts availability and a clear commercial model. Cummins and Komatsu are tackling that challenge together, leveraging the engineering and global distribution capabilities of both parties to develop training programs, service infrastructure, parts distribution networks and channel partner readiness. For mining companies, Cummins says early engagement offers more than access to new technology: it is a chance to help inform product development, evaluate integration within existing operations and begin change management ahead of broader fleet adoption.
- More than 1 megawatt
- 3-9%
- Exceeding 5,000 meters
Previously from Cummins Inc.
Our earlier coverage of Cummins' mining work centered on first-fit engine integration in Komatsu trucks, where Cummins argued that the biggest fuel savings come not from the engine alone but from tuning engine and truck together from the start — pointing to a 15% fuel-consumption advantage on Komatsu's 930E-5.
Background drawn from MotorClaw's earlier coverage of Cummins Inc.'s official releases.
Why this matters
The retrofit lets mine operators cut fuel use and emissions using trucks already in their fleets, with no charging infrastructure, no hydrogen supply and no major changes to operations. That makes it relevant to sites where full battery-electric deployment is difficult in the near term, and it puts Cummins and Komatsu under pressure to build the supply chain, service network and parts distribution needed to scale it.
Terms in This Story
- Hybrid-Electric Retrofit System
- A kit that adds electric energy capture and reuse to trucks already in a fleet, rather than requiring newly built vehicles.
- Haulage
- The movement of ore and material around a mine by heavy trucks; haulage performance describes how efficiently those trucks do that work.
- Proving grounds
- A dedicated test facility where equipment performance is measured and validated against models, typically before and during field deployment.
- Battery string
- One of several grouped battery modules in a system; a modular layout lets the truck keep working if one string needs maintenance.
Summarised from the linked release; details can be imperfect — always verify against the original source.