In recent years, the extensive use of fossil energy in human activities has aggravated the process of global warming and extreme climate disasters. Coupled with the rising awareness of environmental protection by governments and the public, energy conservation and carbon reduction and the development of clean and renewable energy have become important for all countries. Issues that the government is most concerned about and urgently need to be addressed. As a responsible big country in the world, China will of course not stay outside. Instead, it will earnestly implement the international emission reduction conventions and actively promote related emission reduction plans with practical actions. In the "13th Five-Year Plan", the Chinese government has successively intensively announced the "Air Pollution Prevention and Control Action Plan", the "Renewable Energy Development, Geothermal Energy Development and Utilization Plan", and the "Work Plan for Controlling Greenhouse Gas Emissions". It can be seen that the development of clean and renewable energy is an urgent policy of the Chinese government, which urgently needs to be promoted and implemented quickly.

 

Currently available clean and renewable energy sources mainly include: geothermal energy, solar energy, wind energy, hydropower, biomass energy, etc. Among them, geothermal power generation has many advantages such as not being affected by the environment, no fuel supply, constant temperature and stable operation 365 days a year, and high power generation capacity factor (1). It has unique advantages among various clean and renewable energy sources. Incomparable advantages. The Energy Information Agency (EIA) of the United States has calculated the average capacity factor of various renewable energy sources (Figure 1). Among them, the capacity factor of geothermal power generation is as high as 95, which is 4.5 times that of photovoltaic power generation. Diamon, senior vice president of GALAXY of the United States, said: "This means that the geothermal power generation capacity of the same scale power plant is 4.5 times that of photovoltaic power generation. This does not take into account the land cost, and the geothermal power generation is uninterrupted and the maintenance cost is low. It is currently the best regeneration. Energy and base load power".