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A power company says its customers can now choose to have their residential or commercial energy generated by wind farms.

Xcel Energy’s Windsource program started in Wisconsin last month. Since then, Xcel says 200 customers have signed up. The wind farms that generate the power for the program are in Minnesota, North and South Dakota. Customers end up paying a $1.15 per 100-kilowatt hour block above the current electricity rate.