An improved scheme for dissociating water into hydrogen and oxygen is provided in which a two dimensional matrix of electrodes is provided in a reaction vessel. The electrodes are connected to a source of electrical power for providing a potential difference there between sufficient for dissociating the water. The matrix includes a smallest two dimensional repeating group that consists of four electrodes arranged in a quadrilateral clockwise plus, minus, plus, minus. The hydrogen can be used for burning, running an internal combustion engine, or for providing electrical power in a fuel cell. Core water from the matrix can also be used directly as heating water. Direct current, or switched direct current can be used for generating hydrogen while AC sources can be used for generating heat.