EEVblog #1271 - 100kW WindWall Generator BUSTED

[PSR B1257]

Car test is useless. 

Sure.
Maybe someone should tell Mr. Yost, where the energy, he is getting out of his turbines, is coming from.... Spoiler: The engine of the car ... doh ... 
Taking this energy direct from the alternator, would be slightly more economic - but does make for a horrible Kickstarter-Projekt 

[StillTrying]

Mr Yost has replied with some more nonsense, - the most recent comment.
https://www.facebook.com/AmericanWindInc/posts/1215085805347714

[Kilrah]

Yup, that was hilarious.

[StillTrying]

These lot definitely don't believe in AW's >90% blade area turdbine theory, but they do still think putting them over a building's air conditioning outlets is a good idea.  https://www.mowea.world/en/

[Red Squirrel]

All this did got me thinking though is there actual data on the optimal amount of blades?  I imagine it does matter to some degree.  I think 3 is optimal as any more than that you are just adding more weight to move around.   Or another thing I wonder is if many small turbines better than one big one or vise versa?    Think a lot of it also depends, if you want to optimize for high winds, or low winds.   I'm leaning towards the giant 3 blade ones being optimal given they probably had the most engineering and thought go into them.

Wind in my area can be rather sporadic, so a design that can work in low winds but also not self destruct in high ends would be the best.  Always been curious to experiment with a large squirrel cage blower style turbine (say, something the size of a shed) that is optimized to spin rather slowly but have many coils/magnets so at the outer diameter the magnets are still moving quite fast and all the magnets/coils combined would probably generate a decent amount of power even at low wind speeds.   I don't have big enough property for that though.

[floobydust]

Yup, that was hilarious.

"... What you see is the MicroCube outputting 807watts under a 725watt load.

"There is no snake oil here just technology that has been PROVEN, in 3rd party CFD, two wind tunnels, 3rd party verification of our generator output. Hundreds of people have seen this technology work with their own eyes. We never sought out any awards, they were given after people saw the technology and nominated us."

"This test is when we found out we could not run a resistance heavy load... because for the connection wire we used to connect the MicroCubes circuit to the load meter, 45amps was simply too much. This is when we shifted to a higher voltage lower amperage circuitry to control The gauge of wire and energy loss to heat."

"For people that always want to see the what it does under load, is 45amp load per cube enough? Or would you like more? We’ve pushed it to 60amps and almost ignited the wires that make the connection to the load meter before. 6 amp load was chosen, but is not the maximum, nor is 180v max per cube. At one wind tunnel we pushed it to well over 220v."

Uh, 45A of pure bullshit! From his cheezy labview screen, it's likely 45mA.

[GeorgeOfTheJungle]

Whenever I hear somebody say "amperage"... I know what to expect.

[Red Squirrel]

If they were pushing that much I'd like to see the size of the wiring used for the coils and output!  Would need to be like 6 gauge lol.   My guess is they have the meter set to milliamps.