Looks nice, JR. Our first solar installation got kicked down to us from a fellow boater at our marina. I climbed his mast and did a little maintenance in exchange for an older 75 watt panel and charge controller. I thought about fabricating a similar, single-pole tracker mount based on Baldwin's design, but decided the panel was a bit too large to mount on a single pole without beefier scantlings.

I ended up finding an old flounder boat light rail at the local scrap yard and picked up the aluminum tubing for < $10. I fabricated a crude hinge mechanism using the scrap aluminum and used aluminum rivets to fasten it all together. Para-cord lashings with hardwood spacers in between the tubing connected the new solar panel mount to our mainsheet hoop.

When we decided we wanted more power generation, several years had passed. The original mount held up well, despite being held together with nothing more than a rivets and lashings. I put a lot of thought into deciding whether or not to implement a wind generator that I had picked up cheaply. Because we don't have a typical square transom, our stern real-estate is limited and coming up with an arragnement that would work took some effort. I was able to use a free cad program, Sketchup, to help integrate measurements that I took to try several different layouts.

One neat feature of Sketchup is the ability to simulate sunshine angles throughout the day and seasons to model shadowing. This was key in my identification that despite the large gains in generation that a wind generator would provide, it would constantly detract from our solar panel's output due to shading.
This reason, among others including added complexity and safety concerns, swung us over to simply purchasing another panel.
Amazingly, the cost and efficiency of solar has improved so much that I was able to find a panel of matching size that was rated at 100w, bringing our total to 175w, which is about right for our current usage and capacity. Using some tubing connectors, some u-bolts, and a long piece of stainless tubing that I bent into a U shape, I re purposed the original mount to serve as a rack for the new solar array.

After sailing with this configuration for a year, I'm pleased with the results. Though the array only articulates along the horizontal axis, it still allows us to adjust the angle enough to capture the low winter sun and improves efficiency greatly. I plan to add more bracing tubes in the future to help make the structure more rigid, but I may wait until we add panel #3

