text: Graph of the levelized cost of energy (in 2013 dollars per megawatt-hour), and hub height (in meters) over time. The levelized cost of energy shows a downward trajectory, beginning at almost $420/MWh in 1980–1990 and ending at about $50/MWh at present. Hub height grows from 17 m in 1980–1990 to 100 m today to 150 m in the future.