Abstract: Waste matter is incinerated utilizing pure oxygen in addition to the oxygen obtainable through ambient air thereby raising the temperature in the incinerator to an amount of the order of 500.degree.F greater than the incinerator temperature normally encountered when only ambient air is introduced into the incinerator. The incinerator combustion gases are passed into a waste heat boiler to generate steam for operating a steam turbine incorporating an electric generator. A portion of the electric power developed by the generator is utilized in conjunction with an electrolytic cell structure to perform an electrolysis operation upon water to separate the water into its constituent parts (hydrogen and oxygen). A portion of the hydrogen is utilized in the burner plenum of the waste heat boiler to increase the temperature of the incineration combustion gases.