China's geothermal heating and cooling construction area exceeded 100 million

The author recently learned at the national shallow ground geothermal energy survey, evaluation and development and utilization pilot experience promotion conference that as of now, there are 2236 architectural projects with shallow geothermal energy heating and cooling in 31 provinces (autonomous regions and municipalities) in China, and the construction area exceeds 1.3. Billion square meters, geothermal utilization continues to rank first in the world. Among them, 80% of the projects are concentrated in Beijing, Tianjin, Hebei, Liaoning, Henan, Shandong and other regions. About 20 million square meters of buildings in Beijing utilize shallow geothermal energy for heating and cooling, while Shenyang exceeds 43 million square meters.

Geothermal energy refers to the heat energy buried in the earth. It belongs to natural renewable clean energy, including shallow geothermal energy (within the depth of less than 200 meters), geothermal energy (with depth of 200 3000 meters), and dry hot rock resources (with the depth of 3000 meters or more. )Wait. China's geothermal resources are abundant. According to preliminary estimates, the shallow geothermal energy resources at or above the prefectural level are equal to 25.7 billion tons of standard coal. Each year, the amount of shallow geothermal energy available is equivalent to 960 million tons of standard coal, reducing carbon dioxide emissions by 757 million tons.

According to the overall plan for China's response to climate change, the Ministry of Land and Resources and other countries plan to increase the annual direct use of geothermal resources by 40 billion kcal in the next 10 years and increase the use of high-temperature geothermal resources to generate 50 billion kcal; The exploitable volume of ground-level thermal energy is 1.7 trillion kcal/year, which can replace 260 million tons of standard coal, accounting for 8.5% of China’s current total energy consumption (based on 2009 China's total energy consumption of 3.066 billion tons of standard coal), 680 million tons of carbon dioxide can be reduced annually.

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