2866 | Page AN OPTIMAL ANALYSIS OF POWER EVACUATION IN TIGA HYDRO POWER PLANT IN KANO STATE Hamza Abdullahi 1 , Bello Muhammad 2 , and Sani A. Muhammad 3 1.2 Department of Electrical/Electronic Engineering, School of Technology, Kano State Polytechnic 3 Department of Computer Engineering, School of Technology, Kano State Polytechnic ABSTRACT This report describes how an electric utility system is modeled by using load flow techniques to establish a validated power flow case suitable for simulating and evaluating alternative system scenarios. Details of the load flow model are supported by additional technical and descriptive information intended to correlate modeled electrical system parameters with the corresponding physical equipment that makes up the system. Pictures and technical specifications of system equipment from the utility, public, or vendor are provided to support this association for many system components. The report summarizes the load flow model construction, simulation, and validation and describes the general capabilities of an information query system designed to access load flow parameters and other electrical system information. Unlike the generators in large hydro power stations, which operate in voltage control mode, the generators in small hydro power stations (SHPs) are forced to operate in power factor control mode due to their limited reactive power support. In fixed power factor operation, smaller variations of voltage at the evacuation bus are managed by on load tap changing at the generator transformers. However, during large and frequent variations in voltage, such SHPs face difficulty in evacuating the power due to delayed response by the operators and inadequate tap settings of the generator transformers. In this thesis identification of power evacuation system performance for network will be carried out. The work will also study the existing and the proposed power evacuation system and carries out detail study of an existing transmission line and conduct detail study of power evacuation systems. The power evacuation studies will ultimately determine the transmission system capacity and availability of the transmission margin. Also for distribution system performance study, computer program (MATLAB) will be developed for calculation of transmission line performance and Load flow solutions for radial distribution network. I INTRODUCTION In a hydro power plant system, the energy present in water is converted into mechanical or electrical energy by the use of hydropower plant. Generic hydro power systems can be categorized in many different ways. Some of the methods of classification are based on how the electricity is generated by the plant, what kind of grid system is utilized for the distribution of electricity, the type of load capacity and the type of storage used by the system. Hydroelectric generating plants are generally located away from load centers. Accordingly power generated is stepped up to a suitable high voltage in step up substation at generating end and transmission lines laid for interconnection with the grid at a suitable point. The development of a hydro plant electrical single line diagram