I think it is around the size of a medium-to-large-ish ferry, unfortunately, not really competitive with big-time cargo shipping. (I say I think because ferries are generally measured in "people" rather than "TEU" so it is hard to make a direct comparison, but the sizes are about right). Ships are just big by their nature. But it is a step in the right direction, hopefully this will be a testbed for some tech that can be used in bigger boats.