A method for operating an island network comprising - at least one voltage-controlling converter (9a, 9b) converting power of a regenerative power sources (3a, 3b) connected thereto into AC power in accordance with a frequency-power characteristic curve (20a, 20b), - a load, the power consumption of which depends on a voltage amplitude (Uo) of an AC voltage of the island network, wherein the voltage amplitude (Uo) of the island network is varied by a control unit of the island network and wherein the variable voltage amplitude (Û 0) is used for adjusting the power consumption of the load, - wherein the control unit transmits a setpoint value of the voltage amplitude (Uo) to the at least one voltage-controlling converter (9a, 9b), wherein the method comprises the following steps for adjusting the power (P Last) to be consumed by the load, wherein the steps are are performed repeatedly in order to track a change of the maximum available power of the regenerative power source (3a, 3b) over time: - modifying the frequency-power characteristic curve (20a, 20b) of the at least one converter (9a, 9b) as a function of an available power of the regenerative power source (3a, 3b), - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a higher frequency at a given power in order to check whether the available power of the regenerative power source (3a, 3b) lies above the current power, and - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a lower frequency at a given power if the regenerative power source (3a, 3b) cannot provide the power associated with the current frequency according to the frequency-power characteristic curve (20a, 20b), - determining a frequency (f 2) of the AC voltage in the island network by a detection unit connected to the control unit as a consequence of the modification to the frequency-power characteristic curve (20a, 20b) by the control unit, and - redetermining a setpoint value of the voltage amplitude (Û 0) and transmitting the redetermined setpoint value to the at least one voltage-controlling converter (9a, 9b) by means of the control unit, wherein the setpoint value is increased in order to increase the power consumption of the load, if the determined frequency (f 2) lies above a nominal frequency (f nom), and wherein the setpoint value is reduced, in order to decrease the power consumption of the load, if the determined frequency (f 2) lies below the nominal frequency (f nom). - at least one voltage-controlling converter (9a, 9b) converting power of a regenerative power sources (3a, 3b) connected thereto into AC power in accordance with a frequency-power characteristic curve (20a, 20b), - a load, the power consumption of which depends on a voltage amplitude (Uo) of an AC voltage of the island network, wherein the voltage amplitude (Uo) of the island network is varied by a control unit of the island network and wherein the variable voltage amplitude (Û 0) is used for adjusting the power consumption of the load, - wherein the control unit transmits a setpoint value of the voltage amplitude (Uo) to the at least one voltage-controlling converter (9a, 9b), - modifying the frequency-power characteristic curve (20a, 20b) of the at least one converter (9a, 9b) as a function of an available power of the regenerative power source (3a, 3b), - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a higher frequency at a given power in order to check whether the available power of the regenerative power source (3a, 3b) lies above the current power, and - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a lower frequency at a given power if the regenerative power source (3a, 3b) cannot provide the power associated with the current frequency according to the frequency-power characteristic curve (20a, 20b), - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a higher frequency at a given power in order to check whether the available power of the regenerative power source (3a, 3b) lies above the current power, and - wherein the frequency-power characteristic curve (20a, 20b) is modified, at least in sections, to a lower frequency at a given power if the regenerative power source (3a, 3b) cannot provide the power associated with the current frequency according to the frequency-power characteristic curve (20a, 20b), - determining a frequency (f 2) of the AC voltage in the island network by a detection unit connected to the control unit as a consequence of the modification to the frequency-power characteristic curve (20a, 20b) by the control unit, and - redetermining a setpoint value of the voltage amplitude (Û 0) and transmitting the redetermined setpoint value to the at least one voltage-controlling converter (9a, 9b) by means of the control unit, wherein the setpoint value is increased in order to increase the power consumption of the load, if the determined frequency (f 2) lies above a nominal frequency (f nom), and wherein the setpoint value is reduced, in order to decrease the power consumption of the load, if the determined frequency (f 2) lies below the nominal frequency (f nom).