A home energy management system (HEMS) utilizing an electric vehicles (EV) is expected to realize both highly efficient energy management and cost saving of implementing batteries into the home. Also, the HEMS has a potential to contribute in the regional energy management. This paper proposes a method for homes which equip the HEMS, an EV, and a PV generator, to participate in a regulation service market that is a social system for the sake of stabilizing the quality of regional electricity by trading electric capacity. Each HEMS calculates the electric energy (bidding capacity) to supply for the regulation service based on minimizing the electricity fee with considering the future usage of the EV, the future power profiles of consumption and generation, and the expected remuneration from the market. In addition, a method for each home to track the electric power signal sent from the market every two seconds is proposed. The method can realize a real-time tracking control based on a decentralized optimization method called a dual decomposition one. A simulation result based on data of realistic conditions shows that the proposed method can give economical benefit to the residents who participate in the market.
