A system for generating non-polluting fuel and a burner for using such fuel to produce energy in the form of heat with a non-polluting exhaust, together with means for utilizing such exhaust to produce supplementary direct current power is disclosed. An electrolyzer is operated to produce hydrogen and oxygen in gaseous form which is then stored in suitable fuel tanks. As needed, the fuel is combined with air and supplied under pressure to a combustion chamber where the mixture is burned, producing heat and a pollution free exhaust. The heat so produced may be used as a conventional heat source to generate steam, drive a turbine, or the like, while the combustion gases are directed to a magnetohydrodynamic generator to produce an electrical current which is usable in any desired manner.