METHOD OF CONFIGURING WATER ELECTROLYSIS SYSTEM

The present invention relates to a direct-coupled water electrolysis system and to a method of configuring a direct-coupled water electrolysis system comprising at least four components, wherein the first component is a PV-array which is directly connected to the second component which is an electrolyzer stack or multiple electrolyzer stacks, the third component is an electrolyzer system balance-of-plant, and the fourth component is an auxiliary power supply, the method comprising the steps of: a) providing a predetermined initial performance curve of the PV array; b) providing an average degradation rate of the PV array; c) calculating an anticipated performance curve of the PV array for a specific timeline by modifying the predetermined initial performance curve based on the average degradation rate; d) providing a predetermined initial performance curve of the electrolyzer stack or multiple electrolyzer stacks; e) providing an average degradation rate of the electrolyzer stack or multiple electrolyzer stac