This paper presents a basic idea for a congestion management system based on an optimal power flow using the sequential quadratic programming method under the consideration of FACTS-devices. The potential for using this congestion management system in the deregulated market is discussed. An approach for using the balance markets and regulating power markets to resolve congestions is illustrated here. A special focus in the current research is given to the possibility of using FACTS devices included in the OPF as a congestion management system.