A method for coordinating control of a plurality of wind turbines (10-15, 20-25, 30-35) of a wind farm during a fault in a utility grid to which power is to be delivered via at least one cable of the wind farm electrically connectable to the utility grid via a first switch , wherein each wind turbine (10-15, 20-25, 30-35) includes auxiliary equipment, an energy storage system, a generator, a converter whose power input is electrically connectable to a power output of the generator via a respective fourth switch (105-155, 205-255, 305-355) and whose power output is electrically connectable to a power input of the auxiliary equipment, and a power input of the energy storage system via a respective third switch (104-154, 204-254, 304-354) and to the corresponding cable via a respective second switch (800-805, 810-815, 820-825), and wherein a substation of the wind farm includes a substation level auxiliary equipment whose power input is electrically connectable to the at least one cable ; the method includes: opening the first switch , and each of the second switches, third switches and fourth switches; selecting at least one wind turbine of the plurality of wind turbines (10-15, 20-25, 30-35) according to a criteria where a sum of value for active power supply that is available from the selected at least one generator is equal or above a sum of values for active power consumption that is consumable by the energy storage system of the selected at least one wind turbine, the auxiliary equipment of the selected at least one wind turbine and the substation level auxiliary equipment ; activating the selected wind turbine; for the selected wind turbine: electrically connecting the power input of its converter to the power output of its generator, electrically connecting the power output of its converter to the power input of its auxiliary equipment, the power input of its energy storage system and the corresponding cable; and electrically connecting power input of the substation level auxiliary equipment to the cable electrically connected to the selected wind turbine, the activated wind turbine acting as active power supply for the substation level auxiliary equipment . opening the first switch , and each of the second switches, third switches and fourth switches; selecting at least one wind turbine of the plurality of wind turbines (10-15, 20-25, 30-35) according to a criteria where a sum of value for active power supply that is available from the selected at least one generator is equal or above a sum of values for active power consumption that is consumable by the energy storage system of the selected at least one wind turbine, the auxiliary equipment of the selected at least one wind turbine and the substation level auxiliary equipment ; activating the selected wind turbine; for the selected wind turbine: electrically connecting the power input of its converter to the power output of its generator, electrically connecting the power output of its converter to the power input of its auxiliary equipment, the power input of its energy storage system and the corresponding cable; and electrically connecting power input of the substation level auxiliary equipment to the cable electrically connected to the selected wind turbine, the activated wind turbine acting as active power supply for the substation level auxiliary equipment . <EOS>