I just replied to a parallel conversation, "Amel Solar panels". Details are there, but I installed two Panasonic N330 panels (thats 330W each) in April 2016. Together with a TriStar MPPT 60 controller, they make for an eco friendly boat. Tons of power. The N330 are the most compact for the power they provide, when I researched this during in the Spring.
SM #151 Travel Bug, Cleopatra Marina