| Abstract |
With the promotion of clean heating in the northern regions for counteract the air pollution, especially the release of the first national geothermal industry planning, the 13th Five-year Plan for Geothermal Energy Development and Utilization,as well as the geothermal utilization planning and corresponding preferential policies implemented by local governments,the utilization of geothermal resources in China developed rapidly in the past 5 years. This paper up-dates the geothermal resource reserves and regional geothermal heat flow data in China, the direct use and power generation, as well as the scientific research in geothermal sector, including the geological exploration of hot dry rock. At the end of 2017, the service construction area of district heating by hydrothermal resources reached 150 million m2, growing at a rate of 10% per year; ground source heat pump continues to develop rapidly, and the installed capacity reached 20,000 MW and the service construction area exceeds 500 million m2. Based on technical innovations, some ground source heat pumps projects with very large scale has become implemented, such as the Beijing New International Airport in Daxing, Xiongan New District, the Deputy Center of the City of Beijing, the Jiangbei urban area in the City of Chongqing,and their service construction area has reached more than 3 million m2; Traditional hot spring bathing and medical utilization have gradually improved to health care and recreation.In respect to geothermal power generation,a few projects have been invested by state-owned enterprises and private enterprises. In 2018, a 16MW unit of Yangyi Geothermal Power Station in Tibet was successfully connected to the national power grid.A test power unitwith 400KW capacity has been set up in the Tibetan area, Kangding, Sichuan Province.And a 2MW geothermal power unit has been installed in Dehong, Yunnan Province. At present, the total installed capacity of geothermal power generation in China has reached 46.68MW, including the Yangbajing Geothermal Power Plant in Tibet. And it is projected that the power generation capacity will reach to 386.68MW in 2020. In the same time, hotdry rock exploration has also started in China, especially in the Gonghe Basin, Gansu Province.To realize the goal set up in the 13th Five-year Plan for Geothermal Energy Development and Utilization,the geothermal community in China has to work harder in the coming few years. |