Energy industry, also known as fuel power industry, refers to the industrial production department that develops and utilizes various energy resources in nature and transforms them into secondary energy. Energy industry is one of the leading industrial sectors in the development of national economy. The development of energy industry plays a very important role in the development of national economy. China is rich in energy resources and is one of the world's major energy countries. The development and utilization of energy is of great strategic significance in economic development. Conventional energy generally includes coal industry, petroleum industry and power industry.