I remember the first go round of this idea..where people spent more $$ on diesel for the generators to charge the electric to run the boats than to just have diesel engines. As I remember all of those boats, all of them, were converted back to diesel power. Not saying that this is not a huge step forward..but you are still buying/running diesel to charge an electric motor. If these boats ran on solar and wind generated power then it would make one heck of a lot more sense to me..let the flaming begin.