with a five year warranty!
Serious power from
a medium size small wind turbine – The Whisper 500 can produce
enough energy to power an entire home. Formerly the Whisper 175,
the Whisper 500 was completely redesigned in 2004 to work in
harsh high wind environments. The Whisper 500 is a two bladed
fiberglass reinforced blade and incorporates the patented side
furling design that 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 average
every Whisper is an EZ wire Controller. Unlike many of our
competitors, this Controller includes a diversion load to ensure
quiet safe operation of your wind turbine when the batteries are
charged. The controller offers the best of both worlds (wind and
photovoltaics). While controlling the voltage from your Whisper,
it can also control up to 1000 watts of photovoltaics.
The Whisper 500 is
NOT for the novice. Installation of the turbine requires
concrete foundations and at times a crane to lift the wind
turbine into place.
Why small wind? Solar
and wind resources often compliment each other. Generally when
it is sunny it is calm and when it is cloudy it is windy. This
complimentary effect is even greater during seasonal changes.
During the winter and spring when the sun is at its least
exposure, the wind is at it highest. A Whisper 500 during these
periods is essential to keep your batteries charged and your
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. Unlike other wind turbines that lose
as much as 80% of their output when furled, the Angle-Governor
allows the Whisper to achieve maximum output in any wind.