This flow chart shows the information about hydro-electric energy generation. To begin with, we can see that it starts off from the water in sea. The heat from the sun would make the water evaporated to the sky. According to the graph, the water would then become rain, drop into the reservoir. With the help of dam, valve turbine and pump, the movement energy would become electricity. Last but not the least, the electricity would travel through high voltage cables and transformer station. In conclusion, the electricity would go from transformer station and through underground cables to the residential or industrial area.