Monte Gisborne is producing a pontoon style solar powered (with plug-in charging supplemental) boat.
He took his family down (up?) the Rideau Canal recently.
Also check out a couple of videos that he has put up…
He has some interesting ideas in his designs, outside of the solar/electric. No wood (wood rots, as he says)… using a plastic extruded decking material (looks like a good idea for a pontoon boat). Mr. Gisborne is also active in the ElectricBoats mailing list.