The largest ships output about 30MW when slow steaming. The largest wind turbines (which are considerably smaller) average about 8MW. A 100m wing span kite wit

The largest ships output about 30MW when slow steaming. The largest wind turbines (which are considerably smaller) average about 8MW. A 100m wing span kite with a swept region of about 500m diameter is equivalent power to the engine. Comparing potential staffing fuckups that will cost the ship owner half a million to potential staffing fuckups that will make a city uninhabitable is also completely facile.