Windterra's Vertical Axis Wind Turbine (VAWT) is designed to operate in micro-winds as low as 3 metres/second (10.8 km/h, 6.7 mph) and can withstand winds as strong as 53 m/s (190 km/h, 118 mph). The optimal output of 1 kW is reached in wind speeds of 11-12 m/s (39 - 43 km/h, 24.6 - 26.8 mph).
http://www.youtube.com/user/denversolarguy
very cool vawt, what size is it,
ReplyDeleteJames Trebble
www.aelco.co.uk
UK