Electricity generated at hydroelectric power stations is considered to be another form of solar energy. Explain



The energy of water (or hydro energy) is in fact an indirect source of solar energy because it is the solar energy which is responsible for water cycle. The heat of solar energy evaporates water from ocean and the surface of the earth. The water vapours rise high in the atmosphere, get cooled and fall back to the earth in the form of rain and snow. The rain water and the water formed by melting of snow, then flows rapidly in the rivers and provides us with hydro energy.