Susitna Energy Systems supplies Whisper brand of wind turbines. The Whisper 500 wind turbine has a maximum weight of 70 kilograms and measures 914 x 635 x 812 millimeters in size. The shipping weight of this wind turbine is 133.8 kilograms. The Whisper 500 turbine is a medium sized unit that consists of two blades made from carbon reinforced fiberglass. These blades have dimensions of 2,235 x 305 x 152 millimeters with a total weight of 17.2 kilograms. This wind turbine from Susitna Energy Systems has a side furling option that functions as an overspeed protection feature.
The body of the Whisper 500 wind turbine has been constructed from welded steel and is available in a powder coated finish for additional protection. The turbine operates using 24, 32 and 48 volts DC. It has the capacity to produce the maximum power of 3,200 watts at a speed of 12 meters per second. The Whisper 500 wind turbine produces rated power of 3000 watts at a speed of 10.5 meters per second. It has a start-up wind speed of 3.4 meters per second, while the survival wind speed of this wind turbine is 55 meters per second.
This wind turbine from Susitna Energy Systems has the capability to meet the power requirements for an entire house. The Whisper 500 is designed to withstand harsh environmental conditions. It generates approximately 538 kilowatt hours of power per month at a wind speed of 5.4 meters per second. This turbine has a 12.7 centimeter pipe as its mount.