Devices, apparatus, methods and processes are adapted and arranged to efficiently produce both hydrogen and oxygen, while at the same time producing electricity.Advantageously, virtually no undesirable by-products are produced, thus yielding environmentally friendly sources of fuels and energy. Through the cyclic use and re-use of acidic compounds, and especially sulfuric acid, water is processed to produce hydrogen, oxygen and electricity. One or more of the hydrogen, oxygen and electrical output of the methods, devices and apparatus of the invention can be stored, or can be used in many ways, for example, in a fuel cell to produce additional electricity or other reaction products. Hydrogen and oxygen produced by the invention can be combined in an engine, such as an internal combustion engine, to power a vehicle, while electricity produced simultaneously can be used to power other features of the vehicle, such as radios and communications equipment as well as electrical motors commonly found in hybrid vehicles. The invention is also ideal as an ideal source of power for uses where efficiency and the cyclic use of resources are paramount, such as for providing electricity and fuel for use in homes and industry.