What type of energy does "Gravity/Water fed" refer to?

"Gravity/Water fed" specifically refers to hydroelectric energy, which is generated by harnessing the potential energy of water stored at heights. When water falls due to gravity, its kinetic energy is converted into electricity through turbines within a hydroelectric power plant. This process takes advantage of the gravitational force acting on water, making it a key characteristic of hydroelectric energy systems.

Solar energy, wind energy, and geothermal energy utilize different natural forces and sources for energy generation—solar panels convert sunlight, wind turbines capture wind flow, and geothermal energy derives from the earth's internal heat. Thus, they do not relate to the concept of gravitational force acting on water, which is central to hydroelectric energy production.