1. How tall is each turbine?
Each wind turbine is 262 feet high and the tower has a diameter of 14 feet. The
blades of the wind turbines are 120 feet long so that the total height from the ground
to the tip of the blade is more than 380 feet, approximately the height of a 32-story building.
2. How fast do the blades turn?
Depending on wind conditions the blades turn at rates between 10 and 20 revolutions per minute.
Considering the length of the blades, at average wind speeds of 13 to 15 mph, the tips are traveling
at 120 mph. At maximum wind speeds, the blade tips are spinning at an estimated 180 mph.
3. Why do some of the turbines turn and others do not?
Wind velocity can vary up to five miles per hour across the site. Since the turbine’s blades are
moved by the wind each turbine will move at a different rate.
4. How much do they cost?
A private developer built the wind farm for a total project cost of $12.5 million. The ACUA
will purchase electricity from the developer at a fixed rate of $.0795 per kilowatt hour for 20 years.