Yes your example is extremely niche. It only works where you are going to work on one specific application for many years in the same place. It doesn't generalise to building a house, a supermarket or a road. It doesn't generalise to ploughing the Mid-West.
Even in your example it only works if you are taking all of the material to one destination, like an ore refinery. If it was road stone, the rock would get loaded onto a diesel truck for the final part of the journey. So again, the tractor, the excavator on a job site, the lorry, will all stay on diesel or hydrogen ICE
Even in your example it only works if you are taking all of the material to one destination, like an ore refinery. If it was road stone, the rock would get loaded onto a diesel truck for the final part of the journey. So again, the tractor, the excavator on a job site, the lorry, will all stay on diesel or hydrogen ICE