TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Process: The unit produces hydrogen peroxide or an aqueous H2O2 solution from water and atmospheric oxygen.The H2O2 (or solution) is catalytically decomposed to yield nascent oxygen and water vapor under high pressure, this O2/water vapor then being ignited in the heat engine or in a combustion chamber with a hydrocarbon or hydrogen or, as a variation, the H2O2 (solution) is mixed with the fuel for the heat engine.The known process for H2O2 recovery can be operated using the waste heat of the heat engine, the exhaust gas heat, the exhaust gas dynamics or electric energy generated from the thrust and braking energy of a vehicle. Isopropyl alcohol at 90-140 degrees C and 10-20 bar super-pressure can be generated and oxidized suspension hydrogenated to give acetone and H2O2, the separation of the H2O2 from the residual isopropyl alcohol being preceded by use of the mixture as a fuel for the heat engine, optionally in admixture with another fuel.Alternatively, the H2O2 can be produced by electrochemical oxidation using an acid injected into the circuit, the oxidized acid (persulfate) being steam hydrolyzed using the residual energy from the heat engine with the resulting hydrogen being used in the fuel for the heat engine.The hydrogen resulting from the electrochemical oxidation can also be fed to a fuel cell to produce energy or can be used to produce H2O2 in an H2O2 fuel cell.The heat engine can be operated with H2O2 and water to drive the detonating gas reaction in which hydrogen from the electrochemical acid oxidation is ignited with the oxygen from the H2O2 decomposition and by operating the heat engine fresh H2O2 is regenerated using the residual energy not used for driving the engine.The water vapor for hydrolysis of the oxidized acid (e.g. persulfate) is generated in a heat-exchanger which boils water using the waste heat or is fed into the circuit into which is fed the waste heat from the reactor with water being generated by combustion of molecular hydrogen with atomic oxygen.The vacuum pump used in the hydrolysis is driven by a turbine using the vapor and O2 from the H2O2 decomposition.A lifting or rotational column motor uses a gas mixture of nascent O2 and water vapor from the homogeneously or heterogeneously catalyzed H2O2 and operates by external ignition with hydrocarbon or H2 from the electrochemical acid oxidation, the motor having a variable capacity combustion chamber.