Integrating large amounts of intermittent renewables into the grid is a significant challenge. As a versatile energy carrier hydrogen enhances energy security and supports energy independence aiding in decarbonizing sectors such as the electricity grid, transportation, and local industry. This paper shares experiences in successfully using hydrogen production and re-electrification to stabilize intermittent wind power, providing a stable power supply. This is achieved on a pilot scale using PEM (Proton Exchange Membrane) equipment and dynamic operation of the electrolyser. The process involves demand-side management and load-following fuel cell operation within a PEM system with compressed hydrogen storage.