In wind energy, measuring the wind is a central discipline. Without accurate wind data, it is impossible to accurately estimate how much energy a potential wind project can generate and it is impossible to know if an operational wind farm is producing the energy it should, given the actual wind conditions. Traditionally, wind speed measurements have been made using cup anemometers mounted on masts. As wind turbines get ever larger, the height of the necessary met masts grow with them, and unfortunately, as masts get higher they become very expensive.
International Sustainable Energy Review Digital, 2012, Vol 6, Issue 3: Lidars supplement, p. 2-6