The given diagram illustrates the generation of electricity through hydropower.
Overall, it is clear that several stages are involved in hydroelectric power generation. Firstly, the diagram begins with evaporation and ends with power delivered to hospitals and schools.
Looking at the diagram in more detail, solar energy heats water in the ocean, causing it to evaporate. As the water vapor rises, it condenses and forms into clouds, which move over the land. Eventually, the clouds drop rain, some of which falls into a reservoir. The water stored in this area is kept back by a dam, which contains a valve to open and close. When the valve is released, water flows down a steep incline, and its momentum spins a turbine, producing power. At this point, most of the power is transferred through high-voltage lines to a transformer station, which converts the power into a voltage suitable for the electricity needs of the local area.
Finally, it is important to state that some of the surplus power generated by the turbine is used to pump the water back up into the reservoir so that it can be used to meet electricity demands in the future.