Several times on the prarie web site it states the turbine comes online at 6 to 8 mph and at that point produces 2.2KW. Is this a redundant typo? Did you mean 0.22KW? Upon looking at the pics it appears your prop diameter is in the area of 20 feet. If you can get 2.2KW out of a 20 ft diameter prop at 6 -8 mph wind speed I would think you would not have to try to sell stuff off your web site as every wind turbine manufacturer in the world would be paying you for this un-believable blade technology.
If you run the numbers you will see where you exceed the Betz limit by a significant margin (over 4X at 8 mph)with this claim, and exceed the average prop performance by a factor of nearly 10X.
I could however believe your claim of performance of 5.5KW at 23 mph, if I could somehow believe the 6 - 8 mph figure.
I guess I have to agree with the folks that that are skeptical here. If you cant get the basic numbers in the ball park, how is one to believe the rest of the claims.
johnlm