I looked at adding wind turbines and have put that on hold. So anything I say, remember I have not built one yet. Also, the big thing stopping me is mine was meant to be portable, yours isn’t so you have a huge advantage. I want you to succeed. Whatever you try, I’d like to see a post in the Show and Tell or WInd section of this forum.
Before I lose you with my long winded post, this is the company I would go with. Over 100k units delivered over 25 years they’ve been in business, and has a charge controller built in that includes acting as load for unused power and can brake if spinning too fast:
Primus Wind Power is the leader in portable wind power turbines and maker of the of Air Breeze Turbine, Air 30 Turbine & Air 40 Turbine.
www.primuswindpower.com
Not cheap, but you’d produce power, versus a lot of the other cheap CHines windmills.
People put solar in. like the results, come back for more and talk about how good it is. Not the case for wind. In fact for wind, it is nearly impossible to get any test data, its like the Wild West and much worst than trying to direct order Grade A lithium Cells direct from China. What I did find was a lot of chap windmills that look the same for sale on Amazon and E-Bay, with no real reviews. These windmills looked oddly identical to some windmills that had received awful reviews, but seem to have been rebranded. In fact, the windmill in post #7 that had no output looks identical to a lot of the 200-400 watt vertical windmills I liked at.
For planning, I like to think that wind can deliver 10% of the power of the total system. Not at all predictable: sometimes more, most days less. So, I wanted to get about 250 wh of power during the night to help tide me over on the long winter nights until the sun came up. That’s a rather realistic goal. Unfortunately, this would have to be portable and would need to set up for three days at a time, frequent tear down.
With a 3’ to 6’ rotor diameter, I could hit the mark I wanted. Why 3’ to 6’? Well, there’s no good data about how much power, it just happened to be the size of some more reliable makers I saw. Once the was masted, the only way I could do that was making a hitch for my truck that had a hole in it, kind of like a flagpole. These things are too much to anchor to your RV roof. It would shake it all night long until it tore the roof off. I am unsure about putting a pole on the ground anchored by the hitch. Aside just bending in the high winds, that kinds of attracts attention when there‘s a tall pole and big skinny thing, and still too many looky loos where I stay.
I was getting windo at the edge of the mountain and valley in the winter that was shaking the RV for a couple hours before sunset or a couple hours before sunrise. At least 15 knots, gusting to 25 knots. At the same time, my batteries were draining to mid 70% SOC. Getting the 250 wh I described would get me through a cloudy day without power easy, not completely recharging, but giving me enough to last.
To solve the cloudy day problem, I added more solar panels. On a good day a 100 watts of panels will deliver 6 amps of charging power for about 4 hours a day, but on an overcast day, that cuts to one amp. I went from 1000 watts of panels to 1350 watts of panels, and no I comfortably recharge without having to resort to wind.
I also found out that outside of winter, those winds just might not be there. Staying in the same place in the spring had no wind. A good wind survey is supposed to monitor an area for 3 years at a specific place you will build the turbine, You should monitor for at least a year. Who has that kind of time? You’ve been dealt the land you have.
