Big ships are often electric, granted they don&#x27;t run on battery&#x27;s.  However, big ships are really efficient, we use significantly more fuel on trucks than ships.<p>EX: 28 feet&#x2F;gallon sounds bad but * that by 14,770 containers and that&#x27;s the equivalent of an 18 wheeler truck getting 78MPG. (Actual 18 wheeler get ~5-7 MPG which is not bad considering the load.)<p><a href="http:&#x2F;&#x2F;www.instructables.com&#x2F;community&#x2F;Fuel-economy-of-the-worlds-longest-in-service-shi&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.instructables.com&#x2F;community&#x2F;Fuel-economy-of-the-w...</a>