This is a new ferry with unique requirements and innovative thinking:
http://www.marinelog.com/index.php?option=com_content&view=article&id=3786:battery-powered-ferry-to-have-azipull-propulsion&catid=1:latest-news&Itemid=195&goback=.gde_2626955_member_225667678
What I find interesting are:
-The Ferry has pulling rather than pushing propellers (impellers?)
-The re-charge time is addressed by batteries on shore that do a fast recharge (how is that for spending money?)and then get a slower recharge from the land grid
-400kW is enough for typical conditions and they have 800kW capacity - twice the power so that they have reserve power for emergency
-Hull design critical in making the system efficient
Mike Electric Yachts of Southern California
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