Abstract: A method for acquiring provisioning data for an electrolysis system is disclosed. Selection information is transmitted over a network to a user. Provisioning data is received over the network based on input by the user. The provisioning data includes a value indicating a power to be supplied to the electrolysis system.

Abstract: An energy management system includes a control unit and an electrolysis system having an alkaline electrolysis unit and a PEM electrolysis unit. The control unit controls the electrolysis units independently of one another in such a way that a performance adjustment of an overall performance of the electrolysis system is particularly dynamic.

Abstract: A hydrogen filling station system generates hydrogen on demand. The hydrogen filling station system includes a PEM electrolyzer for generating hydrogen, a compression device for compressing the hydrogen, and a filling system for filling a vehicle with the compressed hydrogen. The required space for the hydrogen filling station system is reduced and operational safety is increased in that the PEM electrolyzer is directly connected to the compression device and the compression device is directly connected to the filling system, without temporary storage respectively. That is, there is no requirement to intermediately store the compressed hydrogen.