When China is in the stage of energy self-sufficiency, coal, oil, natural gas and hydropower are all in a state of self-sufficiency, especially coal.

Energy conversion:

The route of China's energy transformation can be expressed in one sentence: get rid of coal dependence, leap into the oil and gas era, and integrate into the future of new energy electrification. As proposed by the Global Energy Internet Development Cooperation Organization, China's energy transformation and transformation should be realized through three steps: incremental substitution, stock substitution and comprehensive transformation.

The external impacts of the exploitation and utilization of fossil energy are limited resources, destroying the ecological environment, endangering public health and emitting greenhouse gases. Fossil energy restricts the sustainable development of social economy and the improvement of people's quality of life.

Energy is not only a part of economy, but also the foundation of economic operation. Energy has great influence on social development, national security, ecological environment, people's life and social civilization, and is a key issue in the process of modernization. To explore the modernization of countries and regions from a global perspective, we need to study international modernization, which is related to the overall energy of China. Its development strategy in the next 20 years should be internationalization, which is an inevitable choice in the face of China's energy situation.