TECHNOLOGY FOCUS - CERAMICS AND GLASS - Preferred Material: The hydrogen storage material can be ceramic.    TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred System: The common electrode is solid-state hydrogen storage material (38). It is a hydrogen source for the second conversion system, and an active electrode for the first conversion system. A portion or all of common electrode can be an anode of the second conversion system. The first conversion system is operable for accepting electrical energy in a charging phase, retaining energy in the form of chemical energy in a charge retention phase, and releasing stored energy in a discharge phase on a demand by the second conversion system. The electrical energy accepted in the charging phase is supplied by an internal voltage source, an external voltage source, or a regenerative braking system. The first and second conversion systems are hydrogen generator (22) and a fuel cell (24), respectively. The hydrogen generator accepts the electrical energy in a charging phase to return the hydrogen generator to a hydrogen-rich form, retains the energy in the form of chemical energy in a charge retention phase, and releases stored energy in a discharge phase upon a demand by the fuel cell. The hydrogen generator is recharged using water and a voltage.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The hydrogen storage material can be metal, metal hydride, carbon nano structure and/or hydride slurry. Hydrogen, oxygen, and water are recycled in the system. The only liquid in the system is water.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The hydrogen storage material can be organic hydride, binary composite, binary-tertiary composite, and/or nano composite.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The hydrogen storage material can be metal, metal hydride, carbon nano structure and/or hydride slurry. Hydrogen, oxygen, and water are recycled in the system. The only liquid in the system is water.    TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The hydrogen storage material is a conductive polymer.