Water energy is a combination of different knowledge in science, which includes a set of biological and water energy factors in the form of water energy and non-biological (physical, chemical) that affect the life of a person or species and are affected by it. Today, this definition is often related to man and his activities, and the water energy can be summed up as a set of natural factors of the earth, such as air, water, atmosphere, rock, plants, etc., that surround man. The difference between water energy and nature is that the definition of nature includes the set of natural, biotic and non-biotic factors that are considered exclusively, while the term water energy is described according to the interactions between humans and nature and from the perspective of humans. The variety of weather and the variety of climatic conditions, the type of soil, the difference in height and unevenness are among the factors that lead to the creation of the water energy. The surface of the earth is generally divided into 4 parts, which are the rock sphere (lithosphere), water sphere (hydrosphere), atmosphere and biosphere. Some scientists consider the ice sphere as part of this division.