The excel 5kW turbine is great..

The BWC EXCEL is a modern 7 meter (23 ft) diameter, 10,000W wind turbine designed for high reliability, low maintenance, and automatic operation in adverse weather conditions. It is available in two configurations: battery charging and grid-connected.

Recomended for:

Large rural homes.

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Remote villages and facilities.

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Eco-tourism resorts.

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Larger telecommunication sites.

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Specs

Start-up Wind Speed: 3.4 m/s (7.5 mph)
Cut-in Wind Speed: 2.5 m/s (5 mph) – grid intertie; 4 m/s (9 mph) – battery charging
Rated Wind Speed: 12 m/s (27 mph)
Rated Power: 10 kW for grid intertie, 7.5 kW for battery-charging
Cut-Out Wind Speed: None
Furling Wind Speed: 15.6 m/s (35 mph)
Max. Design Wind Speed: 60 m/s (134 mph)
Type: 3 Blade Upwind
Rotor Diameter: 7 m (23 ft.)
Blade Pitch Control: None, Fixed Pitch
Overspeed Protection: AUTOFURL
Gearbox: None, Direct Drive
Temperature Range: -40 to +60 Deg. C (-40 to +140 Deg. F)
Generator: Permanent Magnet Alternator
Output Form: 3 Phase AC, Variable Frequency (Regulated 48 – 240 VDC after VCS-10, or 240 VAC, 1Ø, 60 Hz or 220 VAC, 1Ø, 50 Hz with Powersnyc II inverter.