Ok you have a whole new mill, completly different than your 12 volt one,and on this new mill, at a different voltage even, your using the classic on it, Do you think thats a fair way to compare the two systems? How about you put a classic on the old 12 volt mill and note the difference before and after for battery charging.
I am not getting into a pissing match over voltage and the advantage of each, nor am I advocating for 12 volts, just what I am running. I have no problem using or wiring for 12 volts others that do should ofcourse go higher, and I do suggest a higher voltage to anyone looking at getting set up. My comment started regarding mppt and its advantage in the real world and the implication that direct charging is a failure to be abandoned.
I stand by it not being so, it can be very effective, can be done cheaply, again at the real world average wind speeds where you stand to get the power you need to keep your batt full is where it shines.
I do agree with Chris regarding getting more "production" out of a mill with mppt. Note the word production, there is production and there is usable production, and amps into your batts is usable production thats what we need to keep the batts up. You guys, unless I have read wrong are burning up your extra power in resistors, your batts are charged your mills spinning away, your recording this non batt charging power, as if its some great thing. Chris correct me if I am wrong but arnt you recording this in your production totals? So yes that big storm blows through your batts are charged and your system keeps dumping power, running up impressive numbers for your mppt system but the job the mill is needed for has long since been over.
I say amps into the batts at average typical wind speeds is what nets the best performance day in and out. I say direct charging does that job with ease, and I can prove it does at lower cost. I agree my mill becomes increasingly less efficient at higher output but I couldnt care less it will have done its job already, and a burnt up stator if you have that problem is a design issue to solve not a problem with direct batt charging, and I dont think for one minute that you could not solve such a problem if it was ocurring to you.I think the idea of perfect has become the enemy of good....
I am certain I could throw on a mppt and I would not notice one bit of difference in the power available from my batts.