A new approach to the investigation of hydrogen transport via a germanium membrane separating two compartments of an electrochemical cell filled with an aqueous electrolyte is proposed. According to this, one side of the membrane is cathode-polarized until the evolution of hydrogen, then the transport of hydrogen to the opposite side is studied by monitoring a change in the surface charge by measuring the electrode potential and the differential capacitance of the germanium-electrolyte interface. This approach has good prospects for studying the behavior of hydrogen in semiconductors (in particular, for determining the mechanisms of hydrogen transport and charged state of hydrogen species in semiconductors), admits simple experimental realization, has a nondestructive character, and can be used at room temperature. © 2008 Pleiades Publishing, Ltd.