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Much of the equipment could be made more efficient if there was incentive due to the cost of batteries. For instance, hydraulic pumps run continuously in heavy equipment even if it isn't moving anything. Electrify those pumps and then the speed of the pumps can vary from off, to full speed depending on the demand.
Heavy machinery often has fuel capacity to run for days between refueling. If it's being charged nightly (or better yet, fast swap battery packs), it doesn't need to have days worth of capacity. Instead the battery can be sized to go 1 day, or perhaps as small as whatever is necessary to deliver peak power if packs can be swapped quickly.
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