The given diagram shows how hydro electric power is generated.
It can be seen that the river is flowing. The sun rise falling on the river and the water evaporate in the atmosphere and it could be become a clouds. When the rain rains that contains into the reservior and dam.with the help of valve open/close the water flows to the turban and the water is ready gor pump to the reservoir that the water rotation it will generate the current.
However, the high voltage cables is taking from the turbine with this transfer to the transformer station. By this the current passes through the hospital and school .these current supply from the underground.
Overall, these are hydro-electric power generation provide by the water.evaporate and rain into the dams. With the help of turbine they generates the current and passes throughout the hospital,company and school.