Abstract: A method for controlled sharing of data, data analysis algorithms, and results of data analysis regarding one or a plurality of wind turbines and wind farms, and controlled access to said data, data analysis algorithms, and results of data analysis, comprising the following steps: 1. provision of sensor means for reading data relating to the operation of each wind turbine, respectively of each wind farm, of said plurality of wind turbines, respectively of wind farms, for monitoring the operating data of the wind turbines of said plurality of wind turbines, respectively of wind farms; 2.