The electricity production of energy is a particular interest because no current technology allows its large-scale storage. Thus, the production of electrical energy from the hydraulic sector plays an essential role in the regulation of daily electricity production. Different natural resources are used such as oceans; rivers and accumulation basins. The Pelton turbine is characterized compared to other turbines by the exploitation of relatively low flow rates (0.5 to 50  \(m^{3} s^{ - 1}\) ) and large falls (100 and 2000 m). As a turbomachine, the Pelton turbine is characterized by an energy efficiency depending on the design of the injector; the number of blades and their shapes (geometric angles and concavities) as well as the flow characteristics and structure of walls, i.e. (roughness and mechanical properties). During the last century, most turbine research has focused on improving turbine components. The main objective of this paper is to analyze the performance of Pelton turbines under different monitoring conditions by varying different parameters such the flow rate and the friction loss. These analyses make easy the monitoring of Pelton turbine under optimum conditions.