This paper present overview of wind energy in electric power systems continues to increase global. Certain natural characteristics of wind present challenges to powersystem planners and operators. Wind plants operate when the wind blows, with power levels varying with the strength of the wind. Because of these characteristics, wind plants are not dispatchable in the traditional sense. Then describe how wind integration studies are conducted, and grid impacts from these grid integration studies, and assess some of the grid planning and operation changes that may be necessary to incorporate higher levels of wind generation.