1. Hydro Power Operation:<br />The operation of hydel project is very simple, it only use the rushing water from a certain height through m.s pipe and hits the blades of the runner (turbine) and convert the mechanical energy into electrical energy with the help of alternator and is free of any pollution and eco-friendly. However the output varies with water and head, and the design for turbine selection varies respectively.<br />Figure below is the simple operation mechanism of small hydropower;<br /> Fig 1.1: Simple operation of small hydropower.<br />