Energy Accumulation by Means of Hydrogen Technologies

Energy accumulation is an important part of the issue of alternative energy sources. In the near future, energy accumulation systems based on hydrogen technologies have a great potential to achieve broader application in connection with alternative sources though having unstable and unreliable power supplies, but their installed output is steadily increasing. Energy accumulation systems in the form of hydrogen are based on the use of alternative energy sources (solar, wind, hydro, etc.) as a primary source for the hydrogen production process by means of water electrolysis, for its subsequent storage. Such accumulated energy can later be converted by hydrogen oxidation to another kind of energy, e.g. electrical, mechanical or thermal. Oxidation can occur either by direct combustion in a combustion engine or by controlled electro-chemical process in the fuel cell.