抄録
Through use of smart grids, countries around the world are aiming to realize construction of 21st-century electric systems that provide people with abundant, affordable, clean, efficient and reliable electric power regardless of time or location. In addition to adding advanced functions to the nation's electricity grid and thus enhancing reliability, efficiency and security, a smart grid also contributes to the strategic climate-change goal of reducing carbon emissions. This paper describes the trend toward smart grids in Japan for smooth integration of increased use of renewable energy sources and conventional bulk power systems. Several ongoing Japanese field tests relating to smart grids are also briefly introduced.
