Whisper 500 Wind Turbine

Whisper 500

At a Glance

Kilowatt Hours/Month:
Rotor Diameter:
Rated Power:
Turbine Controller:

538 kWh/mo at 12 mph (5.4 m/s)
15 feet (4.5 m)
24, 36, 48 VDC (high voltage avail.)
3000 watts at 24 mph (10.5 m/s)
Whisper Charge Controller (included)
5 year limited warranty

details whisper 500 specification sheet!

Monthly Energy

Whisper 500: Serious Energy for Remote Locations

The robust Whisper 500 delivers serious energy for your remote power needs. The Whisper 500 performs well in harsh, high wind environments with it’s two-bladed, fiberglass-reinforced design. Patented side furling overspeed protection optimizes output at any wind speed. Assuming a 12 mph (5.4 m/s) wind, a Whisper 500 will produce as much as 500 kWh per month. That is enough energy to power the about half the needs of average California home.

Maximum Output in Any Wind

Whisper 500 Furling

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. 

Whisper Controller and Digital Display

The Whisper 500 ships complete with a controller and diversion load, ensuring quiet, safe operation of your wind turbine when the batteries are charged. The controller installs in minutes and it protects both your wind turbine and battery and easily fits inside your battery room.

Add the optional LCD display to instantly monitor real-time data on the performance of your Whisper 500. The display can be mounted on the controller or up to 1000 feet (300 meters) away, so you can monitor performance in the comfort of your home. You can even add an anemometer feed to compare wind speed with turbine output to make sure you are getting the most from your Whisper 500.

Towers and Installation

Southwest Windpower offers tower kits that include all the cables and fasteners you will need. No welding or machining is required – you just need to obtain pipe material and power wires. We sell anchors separately.

The Whisper 500 is NOT for the novice. Installation of the towers requires concrete foundations and at times a crane to lift the wind turbine into place.

For more information, see the Whisper 500 tower manuals:

more info whisper 500 guyed tower 30 ft manual

more info whisper 500 guyed tower 42 ft manual

more info whisper 500 guyed tower 70 ft manual

Year-Round Energy

Wind-solar system

Whisper systems combine well with photovoltaic solar panels to balance out fluctuating solar and wind resources. Generally, winter months provide more wind and less sunlight, while summer months provide more sunlight but less wind. A hybrid system using a Whisper wind generator provides year-round energy production.


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