The type of fuel or resource that is used to heat up the water varies. For instance, solar power plants rely on sunlight to operate the generator that heats up the water. Nuclear plants rely on nuclear reactors. Geothermal power plants generate the fuel needed from hot underground rocks.
Thermal power plants are also known as energy centers due to the water conversion process that results in the production of electricity. Thermal plants produce large amounts of carbon dioxide emissions worldwide.Learn more about Thermodynamics