Operating Characteristics

A computer-based controller in the base of each tower controls each turbine, which is in turn connected to a central control computer in the building at the base of the mountain. The automated control circuitry permits largely unattended operation and the monitoring and control of critical functions from a remote location. Turbines respond to changing wind and weather conditions automatically. For example, wind sensors atop each turbine continually monitor wind speed and direction for that particular turbine. When the wind direction changes, the turbines automatically respond by turning to face into the wind.

The turbines begin producing power in relatively light winds of 10 miles per hour (mph). Between 10 mph and the 29-mph "rated speed" for the turbines, the power output increases with the wind speed. Once the winds go above 29 mph the turbines continue to produce their maximum output of 550 kilowatts as the rotor blades are pitched to deflect the excess power in the faster wind speeds. In winds over 65 mph the turbines completely turn their blades parallel with the winds which stops the rotors and protects them from possible damage.

Over 10 years of wind measurements at this site indicate the average wind speeds along this ridge are between 15 and 17 mph. In these conditions, the turbines produce power over 80% of the time.

Thanks to our neighbors

The interest and support of the people of Searsburg and the surrounding communities were essential for the success of this project. We thank them for welcoming us into their communities.