A power plant, also known as a power station, is a factory that converts various primary energy contained in nature into electrical energy (secondary energy). At the end of the 19th century, with the growth of electricity demand, people began to propose the idea of establishing electricity production centers. With the development of motor manufacturing technology, the expansion of the application range of electric energy, and the rapid growth of the demand for electricity in production, power plants have emerged as the times require. There are many ways to generate power in power plants: thermal power plants rely on thermal power, hydropower plants rely on hydropower, and some power plants rely on solar (photovoltaic) and wind and tidal power. And nuclear power plants that use nuclear fuel as energy have played an increasingly important role in many countries in the world.