ABSTRACT
The provision of energy or related energy services involves a huge variety of environmental impacts that are increasingly less tolerated by society. The available energies can be further subdivided into fossil biogenous, fossil mineral, and renewable energy carriers. Each technical option for utilizing the described renewable energy flows must be adapted to the corresponding characteristics of the available renewable energy. The three sources of renewable energy give rise to a multitude of very different energy flows and carriers due to various energy conversion processes occurring in nature. The Organisation for Economic Co-operation and Development (OECD) will support the development of electric cars, to contribute in the efficient use of energy and promote the use of renewable energy. Energy on demand means stored energy, and the most common means of storage are water in dams, batteries, and biomass. Batteries are used for low-power and low-energy applications for lights, radio, TV, and electronic devices.
