Power System Concerns in Hydrogen Economy

수소경제하에서의 전력시스템

Hydrogen, as a future energy source, can be a good alternative of fossil fuel in view of environment and energy security. Hydrogen can be both fuel and electricity so that it will greatly change energy paradigm. Therefore, researches on hydrogen in power system area are essential and urgent due to their huge effects. In this paper, the importances and meanings of hydrogen in power system are reviewed as energy storage, DC generator, dispersed generation (DG), and combined heat and power (CHP). Technical challenges in hydrogen economy are also listed.