Nice tall tower at 70 feet. If that is sufficiently higher than the trees which are within a couple hundred feet of it you could be up in a range where there might be wind worth harvesting. The tower on a deal like that is the most difficult part, and often what people skimp on, resulting in no real power collection potential.
I don't understand your turbine choice as most small turbines with more than 3 blades loose a lot of efficiency. It is counterintuitive for some folks, but in reality the general rule is that more blades equal less power (although 5 blades can help prevent overspeed and still do well in lower wind for some turbines). The charge controller you have could be a problem too - looks sort of relay-based . There are some decent cheap charge controllers for wind with a boost circuit so you can gather more watts in lower wind that otherwise might be wasted in a 24 or 48v system. They also usually have an electronic shorting brake to slow or stop the turbine in strong winds or when charging voltage target is reached. I've had a nice 600w Chinese turbine running for a couple of years, and it works fine here on the plains, and produces power when the solar doesn't. It is programmed not to run at as high a target voltage as my solar does. I don't need it to compete with solar, just supplement the batteries when solar energy is absent. I've got hundreds of kilowatts out of it for my off grid weekend cabin, and it often keeps by batteries topped off all night.
I guess what I am saying is the turbine and controller you have might be the problem. There are relatively cheap good solutions out there, and maybe if you really want wind power you should scrap everything but the nice tall tower (which probably is the most expensive and difficult part). The heavily advertised turbines with outrageous claims are garbage, but some nice ones are out there - mine is Hy-600 made by Hy Energy in China and it is fairly heavily built - no problems, it just works for me. Remember, the diameter of the turbine rotor blades (swept area) sets the outer limit of the power it can collect, and the size of the windings determine other limits and characteristics of the power collected, like voltage at a certain RPM. Unreal claims of power production that are too good to be true are lies. The laws of physics are the same for all wind turbines.
Do a lot of research. The guy in this video link (below) has figured out some of the issues I'm trying to explain and has a few videos you could review because it just works. His charge controller is excellent for his small Chinese turbine that has been running well since I've been following him. In any event, since I have the same controller I found his stuff interesting, and I know it is great from my own experience.
Good luck.
I don't understand your turbine choice as most small turbines with more than 3 blades loose a lot of efficiency. It is counterintuitive for some folks, but in reality the general rule is that more blades equal less power (although 5 blades can help prevent overspeed and still do well in lower wind for some turbines). The charge controller you have could be a problem too - looks sort of relay-based . There are some decent cheap charge controllers for wind with a boost circuit so you can gather more watts in lower wind that otherwise might be wasted in a 24 or 48v system. They also usually have an electronic shorting brake to slow or stop the turbine in strong winds or when charging voltage target is reached. I've had a nice 600w Chinese turbine running for a couple of years, and it works fine here on the plains, and produces power when the solar doesn't. It is programmed not to run at as high a target voltage as my solar does. I don't need it to compete with solar, just supplement the batteries when solar energy is absent. I've got hundreds of kilowatts out of it for my off grid weekend cabin, and it often keeps by batteries topped off all night.
I guess what I am saying is the turbine and controller you have might be the problem. There are relatively cheap good solutions out there, and maybe if you really want wind power you should scrap everything but the nice tall tower (which probably is the most expensive and difficult part). The heavily advertised turbines with outrageous claims are garbage, but some nice ones are out there - mine is Hy-600 made by Hy Energy in China and it is fairly heavily built - no problems, it just works for me. Remember, the diameter of the turbine rotor blades (swept area) sets the outer limit of the power it can collect, and the size of the windings determine other limits and characteristics of the power collected, like voltage at a certain RPM. Unreal claims of power production that are too good to be true are lies. The laws of physics are the same for all wind turbines.
Do a lot of research. The guy in this video link (below) has figured out some of the issues I'm trying to explain and has a few videos you could review because it just works. His charge controller is excellent for his small Chinese turbine that has been running well since I've been following him. In any event, since I have the same controller I found his stuff interesting, and I know it is great from my own experience.
Good luck.
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