The Air Breeze is what I am leaning towards. Better than the Air X in most conditions and if we are getting the full 200w that would be fabulous actually.
We have 250w of solar
and a very old Rutland
Windcharger that produces about an amp at 10 knots and two at 20. 15-30w. The coil is only rated at 50w at gale speeds. The most Ive ever seen it oroduce was a hair under 4A and that was before I shut it down for fear of losing the 30+ year old blades.
That doesn't seem like much but since we don't have refrigeration
yet that is more than our total night sleeping usage in the hook so we would be charging at .5 to 1.5 amp all night and when the sun came out in the morning the batteries
would already be up to about 13v.
We are designing the refrigeration
system with Ozefridge rigjt now and because our ice box is pretty small (74 liter/2.6 cubic feet) and was "built right" less than 10 years ago with modern insulation
and techniques they think power consumption
at +2C would be 18AH/day or -18C for 32AH/day on our 12v nominal system. Those are phenomenal numbers and I'll be happy if it is 50% more than that.
is big enough for our use over the past 4 years and that is with half of it filled with ice. I'm just sick of buying
ice every 3-4 days and having all that meltwater going down into the wet-bilge sump. It would be a dry-bilge if not for that.
We might be OK on power use even as we are now as long as we didn't get too many rainy/cloudy days in a row, but to help ensure we continue to never ever need to start the engine
to charge batteries
then a better wind turbine would help a whole lot. Also, it would be nice to be able to run the AP while sailing and not always use the monitor
self-steering without running down the batteries at night. That'd be another added benefit of upgrading the wind turbine.
We might be able to shove two 50w flexible panels
onto the bimini
but one of those would probably always be shaded by the boom and sail and only give a marginal boost to the 250w which we already have that is out in the clear off of the stern rail.