[xbmcuser]

I think as battery technology keeps getting better. Building batteries in the shape of 40 foot or 20 foot shipping containers would be the way to go. Container ships can then replace battery containers on every port call just like they do the shipping containers. As worldwide we already have networks for the movement and storage of these containers the cost of implementing this system would not be very high apart from the charging stations for the containers but that would be another source for revenue for the ports.