Sustainable Smart Town (SST) scheme which utilizes networking of energy and information is receiving much attention as a way of stable energy supply and efficient operation in each region and country. SST consists of Smart Grid to supply energy efficiently and energy efficient buildings such as smart homes, condominiums, stores and factories. In addition, new service such as Demand Response Service which takes advantage of networking is beginning to appear in the market.
This paper introduces outline of several SST pilot projects, energy consumption reduction in office building, demand response in existing residential house and information security system for facilities. It also mentions the role and future prospect of International Standardization to realize the safe, secure, comfortable and convenient SST.