Tweaking Turbine Angles Squeezes More Power Out of Wind Farms

A new control algorithm for wind farms that alters how individual turbines are oriented into the wind promises to boost farms' overall efficiency and energy output by optimizing how they deal with their turbulent wake. "Individual turbines generate choppy air, or a wake, which hurts the performance of every turbine downwind of them," says John O. Dabiri, Centennial Professor of Aeronautics and Mechanical Engineering. "To cope with that, wind farm turbines are traditionally spaced as far apart as possible, which unfortunately takes up a lot of real estate." [Caltech story]