A bit more compelling, though for mining, the excavator/shovel/whatever loads a truck. The truck moves it much further and consumes a lot more energy to do so. Overhead wires to power the haul trucks are the biggest win there.
This is an open pit mine. Less vertical movement may reduce imbalance in energy consumption. Can’t find info on pit depth right now but haul distance is 1km.
General point is that when dealing with a move stuff from A to B problem, where A is not fixed, diesel for a varying A-X route and electric for a fixed X-B route seems like a good tradeoff. Definitely B endpoint should be electrified (EG:truck offload at ore processing location)
Getting power to varying point A is a challenging. Maybe something with overhead cables could work, Again, John deere is working on something for agriculture with a cord-laying-down-vehicle and overhead wires are used for the last 20-30 meters. But fields are nice in that there’s less sharp rocks and mostly softer dirt/plants. Not impossible but needs some innovation to accomplish.
A bit more compelling, though for mining, the excavator/shovel/whatever loads a truck. The truck moves it much further and consumes a lot more energy to do so. Overhead wires to power the haul trucks are the biggest win there.
“Roughly 70 per cent of our (greenhouse gas emissions) are from haul truck diesel consumption. So trolley has a tremendous impact on reducing GHGs.”
This is an open pit mine. Less vertical movement may reduce imbalance in energy consumption. Can’t find info on pit depth right now but haul distance is 1km.
General point is that when dealing with a move stuff from A to B problem, where A is not fixed, diesel for a varying A-X route and electric for a fixed X-B route seems like a good tradeoff. Definitely B endpoint should be electrified (EG:truck offload at ore processing location)
Getting power to varying point A is a challenging. Maybe something with overhead cables could work, Again, John deere is working on something for agriculture with a cord-laying-down-vehicle and overhead wires are used for the last 20-30 meters. But fields are nice in that there’s less sharp rocks and mostly softer dirt/plants. Not impossible but needs some innovation to accomplish.
Any time overhead electrical lines for mining trucks would be worthwhile, overland conveyors are usually better.