This paper proposes a new concept of electric power network which makes it possible that many types of dispersed generation plants owned by non-utility organizations can participate in an electric power market without the disadvantages of existing power utility and customers. We call the power network “Open Electric Energy Network (OEEN)” because the network is opened to the many types of plants for the participation. For achieving such openness, electric power storage devices, load controller at each customer and data communication network are installed in OEEN, and the flow of excess electric power generated by each plant is controlled autonomously and in the distributed way. That is, the control is done by transmitting the data about excess electric power such as generation and demand point, power quality, price and so on from each dispersed generation plant to the power storage devices and the load controllers through the communication network. Since this data driven power flow control is similar to the mail system for a packet with the addresses of sender and receiver, we call it “Packet Electric Power Trasportation”.
In OEEN, the storage device plays the different role from load leveling. Therefore, the way of determining the storage capacity is different from the conventional approach. In this paper, the applicability of queuing theory for determning the capacity is also discussed.