Wind Pump

Weight = 1.5 ton (12 meter tower, 5 meter rotor)

This wind pump is a new design, tailored to the needs of developing countries. The major advance of this machine is the low capital cost for its size, while maintaining high strength and reliability. Construction and testing of the first machine was carried out in UK, and is now in use in Asia, Africa and Europe. The aerodynamics of the wind rotor have been optimized to provide high torque at low speeds, thus allowing the use of a direct-drive transmission without any risk of dynamic problems. With appropriate pumps, the machine starts working with wind speed as low as 2.5 - 3m/sec. The automatic storm protection mechanism furls the wind pump at wind speeds of 15 m/sec or more. When the wind drops, the machine automatically returns to normal operation. All bearings and structural components are aimed to have a minimum of 20 years life time. Maintenance is limited to greasing the bearings only once a year. The operation is almost silent. The output is between 6-300 m3 of water per day.