Az USA "szeles" területein (az orszag közepe, wind-belt) a szelenergia ara a 2 $ct/kWh körül mozog.

Wind Power costs at 2 cents per kilowatt hour

Low wind turbine pricing continues to push down installed project costs. Wind turbine equipment prices have fallen to $750-$950/kilowatt (kW), and these declines are pushing down project-level costs. The average installed cost of wind projects in 2017 was $1,610/kW, down $795/kW from the peak in 2009 and 2010.

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Wind energy prices remain low. Lower installed project costs, along with improvements in capacity factors, are enabling aggressive wind power pricing. After topping out at 7 cents per kWh in 2009, the average levelized long-term price from wind power sales agreements has dropped to around 2 cents per kWh – though this nationwide average is dominated by projects that hail from the lowest-priced region, in the central United States.

https://www.nextbigfuture.com/2018/09/wind-power-costs-at-2-cents-per-kilowatt-hour.html