Hydrogen would be a much better form of power for long haul, at least for ships and diesel trains and trucks. By weight it is more energy dense than gasoline but volume is the problem, however for a big ship or a train it makes perfect sense. Point to point intermodal logistics hubs with hydrogen production at either end produced entirely by excess renewable during the day.

Set up one facility in LA and one in Shanghai for ships transiting between them and that could cut thousands of vehicles worth of emissions for every ship. Expand that out to train terminals, truck stops, and certain airports for the right flights - they’re all generally located in the same area anyways.

The problem is the cost of production, but the solution is having so much excess solar generation throughout the day that the cost to produce becomes competitive. Battery tech can always improve, but hydrogen tech is here right now and available today, and only really requires the right incentive structure. Just building out solar panels to lower electricity prices low enough could do that.