Abstract
Full cost (including social cost) for electricity supply business through whole life cycle was analyzed as a case study for environmental cost accounting of each corporation. Social cost on each life stage was estimated based on the endpoint modeling LCIA method (LIME). The ratio of social cost to full cost through all life cycle was accounted as nearly 10%. Most effective impact on the increase of total social cost was seen on the electricity production stage (excluding construction / demolition and maintenance processes) and CO2 emission from fuel furnace on electricity production stage showed largest contribution of all social cost for electricity supply business (around 39%). It is necessary for further precise and reliable analysis to quantify uncertainty of impact assessment method and accumulate especially important inventory data for target activity.