A method of sensing lightning current parameters at wind power plants comprising a plurality of lightning arresters and lightning current diversion paths by using a plurality of sensors on the lightning current diversion paths to identify a lightning current event and comprising a subsequent evaluation of the lightning current event and the effect thereof on the particular wind power plant, wherein a lightning current detection sensor is formed at each of the lightning arresters or each lightning current diversion path and provides a yes/no statement in respect of a lightning current event in relation to the respective lightning arrester or the respective lightning current diversion path, wherein at least one lightning current measuring sensor is provided at a central point of the merging of the lightning current diversion paths toward the ground, wherein furthermore the level of the charge of the respective long-term current that has occurred is determined and made use of to identify possible effects on the wind power plant, characterized in that the at least one lightning current measuring sensor detects both surge currents having a duration of less than 5 ms and long-term currents having a duration of more than 5 ms, wherein the at least one lightning current measuring sensor includes two Rogowski coils, wherein a first Rogowski coil detects single pulses of a high current level up to 200 kA with a short pulse duration of up to 5 ms, and a second Rogowski coil detects single pulses of lower currents at a pulse duration of up to 1 s, and wherein the lightning current detection sensors are provided at the respective connection point between the wind turbine rotor blade and the hub, and the at least one lightning current measuring sensor is provided at the rotor shaft. wherein a lightning current detection sensor is formed at each of the lightning arresters or each lightning current diversion path and provides a yes/no statement in respect of a lightning current event in relation to the respective lightning arrester or the respective lightning current diversion path, wherein at least one lightning current measuring sensor is provided at a central point of the merging of the lightning current diversion paths toward the ground, wherein furthermore the level of the charge of the respective long-term current that has occurred is determined and made use of to identify possible effects on the wind power plant, characterized in that the at least one lightning current measuring sensor detects both surge currents having a duration of less than 5 ms and long-term currents having a duration of more than 5 ms, wherein the at least one lightning current measuring sensor includes two Rogowski coils, wherein a first Rogowski coil detects single pulses of a high current level up to 200 kA with a short pulse duration of up to 5 ms, and a second Rogowski coil detects single pulses of lower currents at a pulse duration of up to 1 s, and wherein the lightning current detection sensors are provided at the respective connection point between the wind turbine rotor blade and the hub, and the at least one lightning current measuring sensor is provided at the rotor shaft.