Abstract: A device for converting energy by a proton-conducting electrolyte, includes an integrated arrangement for producing hydrogen gas. The arrangement has a reaction chamber for producing H2 gas by reaction of water with a hydride; and a fuel cell stack having an H2 gas is transferred. Each fuel cell has an opening which together form the distribution channel and by means of which an H2 gas distribution in individual fuel cells is provided. The reaction chamber is situated underneath, and a water coupling is situated above the cell stack. Further a tension rod having a longitudinal internal passage connecting the water coupling with the reaction chamber is disposed in the openings for holding together the fuel cells. A valve is connected to the tension rod for controlling the passage.