Garland is the latest North Texas city considering a zoning ordinance aimed at regulating wind energy devices that generate power for residential use. The measure is on Tuesday's council agenda. Other cities, including Grand Prairie, Waxahachie and Oak Point, already have such ordinances. Residential wind energy devices are rare in urban areas and may be too expensive or impractical for many homeowners. But city officials say they want to make sure rules are in place for the day when wind energy devices become more commonplace.