Whisper 100 - The Best-Selling Small-Wind Turbine in its Class

The Whisper 100 can produce up to 100 kilowatt hours a month in moderate to high winds. One of the quietest turbines ever tested by the National Renewable Energy Labs, it also has an elegantly simple design that further increases its aesthetic appeal.

In addition to its patented side-furling action, the Whisper 100 has other important features that help make it the world’s top-selling small-wind turbine in its class:

• Four-bearing spindle for smoother operation and longer life (20 years)
• Upgraded yaw shaft for more efficient current delivery to batteries and operation in high-wind environments
• Bronze bushing and large-diameter furling pin for smoother action
• Simple rewiring of alternator allows different voltages from the same turbine (12, 24, 36 or 48 VDC)

Whisper 100 Specifications
Energy Potential	100 kWh/month at 12 mph (5.4 m/s)
Rotor Diameter	7 ft (2.1 m)
Voltage	12, 24, 36, 48 VDC
Rated Power	900 watts at 28 mph (12.5 m/s)
Turbine Controller	Whisper Charge Controller (included)
Warranty	5-year limited

Whisper 200 - High energy potential, even in low to moderate winds.

The Whisper 200's 9-foot (2.7 m) blades create almost twice the swept area of the Whisper 100, and yield up to 200 kilowatt hours a month in a 12 mph (5.4 m/s) wind. A high-voltage model is available for transmission over longer distances.

In addition to its patented side-furling action, the Whisper 200 has other advanced features that make it the ideal choice for generating maximum energy at lower wind speeds:

• Four-bearing spindle for smoother operation and longer life (20 years)
• Upgraded yaw shaft for more efficient current delivery to batteries and operation in high wind environments
• Bronze bushing and large-diameter furling pin for smoother action
• Simple rewiring of alternator allows different voltages from the same turbine (12, 24, 36 or 48 VDC)
• Blade extenders that increase swept area, thus increasing energy capture

Whisper 200 Specifications
Energy Potential	200 kWh/month at 12 mph (5.4 m/s)
Rotor Diameter	9 ft (2.7 m)
Voltage	24, 36, 48 VDC (high voltage available)
Rated Power	1000 watts at 26 mph (12.5 m/s)
Turbine Controller	Whisper Charge Controller (included)
Warranty	5-year limited

Whisper 500 - Serious energy potential for high-wind areas

With its two-bladed, fiberglass-reinforced design, the Whisper 500 is built to take the punishment of harsh, high-wind environments, while generating high-energy yield. In fact, the Whisper 500 can produce as much as 500 kilowatt hours a month in a 12 mph average wind, which is enough to power the needs of a typical off-grid home.

Exclusive to the Whisper, the side-furling angle-governor protects the turbine in high winds by turning the alternator and blades out of the wind, reducing turbine exposure. This angle-governor lets the Whisper 500 continue to safely spin and deliver energy even in high winds.   NOTE: Whisper 500 is not recommended for marine areas.

Whisper 500 Specifications
Energy Potential	538 kWh/month at 12 mph (5.4 m/s)
Rotor Diameter	15 ft (4.5 m)
Voltage	24, 36, 48 VDC (high voltage available)
Rated Power	3000 watts at 24 mph (10.5 m/s)
Turbine Controller	Whisper Charge Controller (included)
Warranty	5-year limited