Two years ago, I installed a "cool blue" from Technautics. And We love it.
Our first choice was a Keel cooler but I didn't want to start cutting up the hull and as an X-racer, I've got this thing about hanging something on the side of the keel.
It kicks on about twice a day and runs for about an hour each time and I watch the amp draw drop from 4 amps to 3 amps and then shut down..
When Installing it, I removed ALL the interior of the top-loader from the cabinet inside to the hull. then I started laying up high density foam board until I reached the size of the box I wanted.. I then finished the inside of the box with acrylic. My cold plate is in the frezzer side with holes with baffles to the reffer side..
You also mentioned a wind generator.. I've also installed one of the "Four Winds" units. we checked the output of the four winds and in a 24 hour period, I logged just over 300 amps.. Just recently I've added a "Tri Star" controler that deverts the over-use of amps to the waterheater.
The Four Winds normally comes with a large heat sink to take the excess amperage...
My refrigeration is controled through a "Pro Star" solar controlar so I can read the load of the unit and see when it is running...