I am not an engineer either....They are still a ways off making this commercially viable, but it is sure interesting....one of their major concerns at this point is the potential damage to sealife: I guess the larger diameter turbines could do some real damage to the swimming critters <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" />
Keep us posted on the solar trike!