Westar Energy Inc. says new wind farms in central and southwest Kansas are now producing power for its customers.

Westar has agreements with the developers of the wind farms to buy up to 369 megawatts of electricity from them. That more than doubles the electricity the Topeka-based utility can generate from renewable resources to 670 megawatts.

The 201-megawatt Post Rock Wind Farm in Ellsworth and Lincoln counties began production Sept. 28. It was developed by St. Louis-based Wind Capital Group.

The Ironwood Wind Power Project farm in Ford and Hodgeman counties can produce up to 168 megawatts of electricity for Westar. It began production Aug. 31. It was developed by Duke Energy Generation Services of Charlotte, N.C.

Westar has nearly 700,000 customers in Kansas.