Abstract
FRIENDS (Flexible, Reliable and Intelligent ENergy Delivery System) is a new concept for a future energy delivery system. FRIENDS is characterized by the Quality Control Center (QCC) with dispersed generator and/or storage system in order to improve the system reliability.In this paper, the social cost is assumed as the sum of the rate of electricity, interruption cost and QCC cost, the effect of the QCC on area economy improvement is evaluated through the Monte Carlo Simulation. It is illustrated that the area economy may be improved by the QCC with reliability improvement, depending on the reliability level.