Bergey XL.1 Wind Turbine Generator The Bergey 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. It comes from the world’s leading manufacturer of small wind turbines and is backed by an industry-leading full 5-year warranty. The XL.1 wind turbine is designed for high reliability, low maintenance and automatic operation in adverse weather conditions.

With a rotor diameter of 2.5 metres and a peak output of approximately 1,300 watts the XL.1 is intended for the remote (off-grid) home market and for rural electrification programs in developing countries. It is also a perfect upgrade system for current owners of smaller turbines, such as the AIR range.

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. Pultrusions have a breaking strength exceeding 100,000 psi, which is twice as strong as normal steel.

The blades attach directly to a specially designed very-low-speed permanent magnet alternator which uses state-of-the-art neodymium super-magnets. The oversized alternator is designed to slow the rotor down which makes the turbine very quiet. Overspeed protection is provided by the proven BWC AutoFurl passive sideways furling system.

The XL.1 includes the BWC PowerCenter controller which controls battery charging, provides a common interconnection point for all the DC components, 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.

Specifications

Rotor Diameter:	2.5 metres
Start up wind speed:	6.7 mph (3.0 m/s)
Rated wind speed:	24.6 mph (11.0 m/s)
Voltage:	24 volts
Rated Output:	1000 watts
Maximum Output:	1300 watts
KWh per Month:	175 to 295 KWh/Mo at 12 mph (5.4 m/s)
	(Dependent on tower height)

Features

• Industry leading 5 YEAR WARRANTY
• Maintenance free design
• Nearly silent operation
• Excellent low wind performance
• AutoFurl automatic storm protection
• State-of-the-art Airfoil (Patent pending)
• PowerCenter multifunction controller included
• Battery friendly OptiCharge regulation
• High power output

Applications

• Remote homes
• Rural electrification
• Village power
• Water pumping
• Remote telecommunications power

XL1 Turbine Performance Curve

XL1 Turbine Power Production

The following table details predicted energy production with wind speed measurements taken at the top of the turbine tower.

The following table details predicted energy production with wind speed measurements taken at a height of 10 metres as per wind resource maps.

Assumptions:

• Inland site
• Rayleigh wind distribution
• Shear exponent = 0.20
• Altitude = 1000ft (300m)

Note: Your performance may vary.

Bergey XL1 Wind Turbine BWCXL1

Prices displayed are applicable to purchases of a single item. A discount may be available for purchases of multiple items. Contact us with your required quantities for more information.



Copyright © 2001 - 2006 Solar Online Australia
www.solaronline.com.au