Several factors can keep wind turbines from turning

Cedar Rapids, Iowa – If you’ve driven through areas of the state where there are wind turbines, you may have noticed there are times when the giant blades are not moving.  Alliant Energy spokesman, Justin Foss, says his company expects a 40 percent operating capacity for the turbines they install.

He says the turbines can stop if there is not enough wind, and also have to be shut down if the wind is too strong.

The turbines are also shut down for maintenance.

The capacity of the power grid is another factor that might lead to turbines being shut down.

He says all the changes have allowed them to increase the turbine use to 40 percent.

Information from the American Wind Energy Association says Iowa generates nearly 37 percent of is electricity from wind.

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