Already for sale to consumers, and private energy producers.
Magenn Air Rotor System (MARS), Krystal Planet brochure page 6
4 kW wind power unit, $10,000 US installed.
Produces 800 kW-hr per month at average wind speed of 18 mph (minimum 2.25 mph).
200-ft height, up to 800 ft optional.
Temperature -40 deg.C thru +60 deg.C
5-Year warranty, 15-year operational lifetime.
