Significance of the Introduction of Large Quantity of Hydrogen to Japan

Abstract

Decarbonization of energy systems of Japan is expected to be effective to ensure energy security and mitigation of Green House Gas emission. Procurement of low carbon energy from fossil fuel with carbon dioxide capture/storage (CCS) and renewable energy, and its transport to Japan is considered economically preferable. Hydrogen is evaluated as the suitable career of low carbon energy and estimated to obtain more than 10% of the Japanese primary energy supply under the severe restriction of CO₂ emission. Policies of the Japanese government regarding hydrogen energy system is briefly introduced.