Average wind turbine capacity, rotor diameter, and hub height increased in 2017, continuing a long-term trend. One reason that wind producers choose bigger turbines is to optimize wind power project cost and performance, according to the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy. Source: U.S. DOE, 2017 Wind Technologies Market Report, August 2018 —Copy and artwork by Sonal Patel, a POWER associate editor.
