If your vessel has davits they can make a very good spot to mount a panel. This 80 watt monocrystalline panel cost under $80.00 in materials to build the mounting system. The davits were already there, so why not put them to better use. This panel is mounted on 1" 316 stainless steel heavy walled tubing. As an added benefit it can also be articulated towards the sun if needed.