The proposed sails and rotors seem to be vertical. They could take up a few rows of containers. They could avoid cranes by being shorter than the cranes. Sails

The proposed sails and rotors seem to be vertical. They could take up a few rows of containers. They could avoid cranes by being shorter than the cranes. Sails would need to stand above the containers to work so maybe they could retract in port. Sails would take up a good chunk of container space. Maybe could do something like slide containers under the arch for sail.