About NAKATA YUJI
About 電気学会全国大会講演論文集
About society
About environmental conservation
About greenhouse effect gas
About transmission system (electric power)
About dispersed power source
About information technology
About community (group)
About social system
About smart grid
About smart community
About low-carbon society
About Energy efficient technologies
About saving
About energy saving
About Power generation in general
About 低炭素社会
About スマートグリッド
About スマートシティ