There are sailed powered logistics ships! Here's a grain ship that just launched. There are also companies that produce inflatable or deployable sails to reduce fuel consumption in favorable winds.
Ultimately there will be a need for chemical energy or similarly dense energy to move a ship. The wind doesn't always blow, and when it does it won't always be in the direction you want. Nuclear is certainly an interesting option.
There are sailed powered logistics ships! Here's a grain ship that just launched. There are also companies that produce inflatable or deployable sails to reduce fuel consumption in favorable winds.
Ultimately there will be a need for chemical energy or similarly dense energy to move a ship. The wind doesn't always blow, and when it does it won't always be in the direction you want. Nuclear is certainly an interesting option.