Value of storage devices in congestion constrained distribution networks

This paper investigates the value of storage devices in congestion constrained distribution networks. Subject of the investigations is a load, which cannot be supplied with the desired security at all times during the day. It is analyzed what the requirements would be if a storage device would be installed at the load bus instead of network reinforcement. To compare these two possible solutions, the implications on the load flow, including loss reduction and the possibility of local voltage control, are investigated. Furthermore the availability of a system with three lines is used to determine failure and repair rate requirements for a storage device. Finally some general economical considerations are outlined.