Miles, I have two 100W panel installed between mizzen shrouds and the main aft stay using some cheap aluminum profiles. Works for a couple of years now even with 45+ kn wind.
1 more is on top of the right side of the dodger (not yet installed when I took this picture), 2 on the starboard rails (visibible on picture) and the last two on top of my davits, totalling 670 W.