Method for operating a wind turbine

For the operation of a wind turbine, to generate electricity, the power output from the turbine generator to the electricity grid is raised temporarily and for a short time span above the actual turbine power if the grid frequency of the electricity grid is below the nominal grid frequency by a given frequency level and/or if the grid frequency has a frequency gradient with a time change exceeding a given change value. The wind turbines are controlled individually or centrally.