The Oklahoma Corporation Commission on Thursday approved an agreement that allows OG&E to build and operate a new wind farm in northwest Oklahoma.

The Crossroads project, to be built in Dewey County near Canton, is expected to begin producing power in the second half of 2011. It would be OG&E's biggest wind-power producer.

Average residential customers could see an increase in monthly bills of between 59 cents and 65 cents in 2012 when Crossroads is in full production. However, by 2013 or 2014, the lower-cost wind energy is expected to produce a net decrease in customers' bills, OG&E said.

OG&E set a goal of quadrupling its wind power production in 2008.