Fine tuning the circuit made a HUGE difference.All the details included in this video 

A little background on the wind turbine questions... I got my shopping list for parts from James Biggar at Resystech (he's got a playlist on his 3kW design)... and then I got a bit stumped on: 1) carving the blades and 2) there was little in the way of electronic controls, and this second point is how I discovered your channel. Also came across John Daniel's channel which has a bunch of interesting stuff on wind turbine and the attached electronics / controls. Also tons on battery systems. I may have to pony up for the Midnight, they seem hard to find or very expensive (and now I notice they have a couple of models which seem indistinguishable). Any ideas on alternatives or things to look for... don't want to spend that kind of money and have it not work out!... As for the blades, any tips on getting three or more carved to match, or just how you go about getting the airfoil to transfer to your working material would be great! Reason I asked about low wind and internal design or electronics... I've come across several papers on interesting ideas to a) reduce cogging b) improve cut in via airfoil choices, c) noise suppression by tinkering with details of blade design, etc. One interesting one: since there are two rotors in some of these designs (James' has two rotors), the idea was to use the second one as a motor to drive the first one until winds were strong enough to drive both. I was thinking this could be improved with the tech you're developing now using the back emf. I should be moving to place with more space later this year and this is right near the top of priorities... gotta admit, carving the blades and erecting the thing without a collapse ending both give me nervous energy. 😀

thanks... can you go over the criteria used for optimization? you mentioned heat... just wondering what you're looking for overall

Just going buy the description, are you aiming at a self runner. I'd love to see it. Let alone the response. With greatest regards and thanks for your efforts.

Nice work! The only confusing part for me was the starting voltage on the charge battery. Not really a problem because I am sure you had tested prior to the video. Although I am not familiar with that particular meter, it has all of the bars in the middle lit up, and the voltage reading starts at 26.2 volts. Run battery is at 26.6 volts. Ending voltage after two hours is at 26.4 volts on the 50 AH charge battery and 26.5 on the 25 AH run battery It seems like you had already done the charging prior to the video (to me). No big deal, just wanted to ask. I hope to build the circuit as soon as I finish my current charging project. However, I am not looking forward to building that motor, that's a lot of work. I am thinking that the circuit should work on a store bought motor, laying a diode from the positive to the circuit, and having the store bought motor on the positive. Kind of like one of those store bought motors you showed in a previous video. Great to see the video.

thanks for sharing this man!