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I meant apart from the hydrogen fuel costs. It’s not obvious to me why the labor and maintenance costs of hydrogen powered mining vehicles wouldn’t be greater than that of the battery powered versions and the attendant charging/battery swapping equipment.
Mostly its the fuel costs adding to operating costs, but dealing with a cryogenic and highly flammable liquid/gas and all the related fluid handling, pressure regulators, and piping necessary is always going to be more labor and repair intensive than just expanding and directly charging the battery the vehicle needs to have anyway.
