Power system deregulation: A congestion management analysis for Texas

This thesis carries out an in-depth analysis of network Congestion Management (CM) for the emerging deregulated power system with emphasis in Texas. One outcome of this work comprises a succinct recompilation of current basic industry/institutional documentation on the matter. The theoretical basis of power system congestion is discussed as well as the different CM methods as they apply to actual utility cases. The Texas ERCOT system has been used as a benchmark to compute essential power market parameters. The process has included the zonal clustering method with the computation of shift factors and attendant congestion costs to the energy players within the different market periods. Some shortcomings/limitations of the procedures are pointed out regarding system reactive power and security. New FACTS technology is proposed as a transmission CM resource.