Bergey 10 Kw
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 (the pumping version is not currently available). The BWC Excel is a ruggedly built turbine that comes with the longest warranty (10 years) in the industry.
In October 2008 the Excel-S was upgraded to a more efficient Powersync II inverter. In July 2009 the Excel turbine was upgraded with a more powerful alternator and longer blades. Performance has been improved by an average of 25%. Also in July 2009 the warranty on the Excel wind turbine was increased to 10 years – the longest in the industry.
Battery charging BWC EXCEL’s can be supplied with outputs of 24, 48, 120 or 240 VDC. They are well suited for large rural homes, remote villages and facilities, eco-tourism resorts, and larger telecommunications sites.
Connected to the grid, the BWC EXCEL can provide most of the electricity for an average total electric home at moderate wind sites. The all new GridTek 10 power processor (inverter) is the most advanced in the industry and it carries a full UL certification to the latest utility standards.
Prices, which include a voltage regulator or a grid-synchronous inverter, range from $23,500 to $29,500.
The BWC EXCEL is most often installed on a guyed lattice tower, which is available in heights of 18 m (60 ft.) to 43 m (140 ft.). Prices range from $10,150 to $17,200. Tilt-up versions of these towers are available for sites without crane access.  Non-guyed lattice type towers and monopoles (tapered tubular) towers are also available to heights of 37 m (120 ft). Customers may also supply their own towers if they follow BWC’s technical requirements for Excel towers (see Requirements).
The BWC EXCEL was introduced in 1983 and it has been installed at over 1,600 sites around the world. We invite you to review our list of notable customers and our example project
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Bergey 1 Kw Bergey Windpower’s newest product is the 1,000 Watt BWC XL.1. The BWC XL.1 is currently available only as a 24 VDC battery-charging system. With a rotor diameter of 2.5 meters (8.2 ft) and a peak output of approximately 1,300 watts the XL.1 is intended for the off-grid home market in the U.S. and for rural electrification programs in developing countries. It is also a perfect upgrade system for current owners of micro-turbines, such as the Air 303 or 403. The XL.1 combines a number of advanced technical features, including a completely new airfoil, to provide the highest efficiency yet achieved in a small wind turbine at a cost of energy ~ 10% lower than the current price leader. And, the XL.1 carries the industry-leading Bergey 5-year warranty. “We are very excited about the XL.1. We think customers are really going to like this machine” notes Mike Bergey, BWC’s president. The XL.1 is an up-wind, horizontal-axis, three- bladed turbine. The blades are pultruded fiberglass, a material that is over ten times stronger than the injection- molded plastic used on most small wind turbines. In fact, pultrusions have a breaking strength exceeding 100,000 psi, which is twice as strong as normal steel. “Just about any blade material will hold up in light to moderate winds. But, when the storms come, weak blades can put the whole system at risk.” And the new BWC SH3045 airfoil makes the XL.1’s blade probably the most efficient ever on a small wind turbine. The photo to the right shows an XL.1 installed by Brooks Solar (Chelan, WA) at a renewable energy trade fair in Oregon. The blades attach directly to a specially designed very-low-speed permanent magnet alternator which uses state-of-the-art neodymium super- magnets. “We have designed an oversized alternator that slows the rotor down and makes the turbine very quiet.” Overspeed protection is provided by the proven BWC AutoFurl passive sideways furling system. “In spite of the claims otherwise, no other overspeed protection system has proven to be more reliable or effective than AutoFurl.” The XL.1 includes the BWC PowerCenter controller which controls battery charging, has a low-end boost for superior low wind speed performance, “slow-mode” rotor idling when the batteries are full, an electrical braking system, and even includes a 30 A controller for the solar modules that are often a part of a complete hybrid system. The PowerCenter allows an auxiliary or “dump” load to be connected to utilize excess wind (and/or solar) power after the batteries are fully charged. Low wind speed performance is greatly enhanced by a low-end-boost circuit that optimally loads the wind turbine down to wind speeds as low as 5.6 mph (2.5 m/s). Combined with the new blade system, this circuitry allows the XL.1 to produce useful power more than 6,000 hours a year at a typical site. For reference, a typical solar system produces power 3,500 hours a year at a typical site. The XL.1 is offered with a tubular Tilt-up tower in heights from 18 m (60 ft) to 29 m (100 ft). These kits will be be easy to install and will offer customers a complete “ready to install” kit. “There’s been a need for more complete integration between turbine and tower packages for small wind turbines and we think our new line will fill that gap.” |
