I find it interesting that Southwest Windpower is apparently planning to sell a newly developed turbine dubbed "Storm". Hopefully it will live up to the hype!
"SUMMARY NREL and Sandia specs;
downwind span of 3.35 m.
turbine rated at 1.8 kW.
power/RPM regula-tion by a patented "electronic" stall control method.
3 blade NREL S822 airfoil
Cp curve with a peak of approximately 0.45.
tip speed ratio (TSR) of 7.0
available 2006"
Information may be found at these links;
http://www.nrel.gov/docs/fy05osti/38157.pdf
http://www.nrel.gov/wind_meetings/fy05_meeting/pdfs/calley_fy2005.pdf
Apparently the beta field tests are underway, anyone know how they are working?