Bergey's BWC Excel-R series wind turbines are rated for 7.5 kilowatts output in a battery charging power system. Their low start-up wind speed (7.5mph) and high maximum design wind speed (120mph) make them ideal for providing large amounts of power to a small power system under almost any wind conditions.
It is available with either 120VDC or 240VDC output, allowing the turbine to be located at a distance from the system battery bank without excessive line loss in transmission. Both models include an VCS-10 charge control/rectifier, which produces high voltage DC current.
The Excel's 23 foot diameter blades are flexible in torsion, with a unique pitch-weight attached to the leading edges. The blades are set at a higher pitch to aid start-up, but then 'flatten out' to improve aerodynamics at higher speeds. At 30-34mph, the passive Autofurl wind speed protection design kicks in, as the rotor furling thrust overcomes the tail resistance, preventing high wind speed damage to the turbine.
With only 4 moving parts, and an exceptional 5 year warranty, the Bergey Excel series should provide reliable power production at virtually any site, for years to come. No scheduled maintenance is required beyond biannual inspections, and replacement of the outer 3 feet of blade edge tape every 4-5 years.
IMPORTANT: This is a special order item. Shipping charges will NOT be added to your final checkout total. We will contact you to determine shipping charges to your location.
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