Citation: | MA Bing, JIA Lingxiao, YU Yang, WANG Huan. 2021. The development and utilization of geothermal energy in the world[J]. Geology in China, 48(6): 1734-1747. doi: 10.12029/gc20210606 |
As a kind of zero carbon and clean energy, the development and utilization of geothermal energy is of great value for carbon neutralization. From 2015 to 2020, the global geothermal power generation increased by about 3649 GW, an increase of about 27%. Total installed capacity of geothermal utilization increased by 52.0%. The sum of the two, the used heat energy increased by 72.3% over 2015. The direct utilization of geothermal energy in the world can prevent 78.1 million tons of carbon and 252.6 million tons of CO2 from being emitted into the atmosphere every year. The world geothermal energy development presents the following five trends: development of unconventional geothermal system, development of offshore geothermal resources, reduction of drilling cost and cooperation of thermal energy production with petroleum, increase of the development and utilization of shallow geothermal energy, strengthening of the research and development of aquifer thermal energy storage technology.
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World total install capacity of geothermal power generation in 2010-2025
MW Growth since 2015 by nations previously having installed power plants
changes total install capacity MW percentage of geothermal power generation in 2010—2025
The install directly-used geothermal capacity and annual utilization in 1995—2020
Comparison of worldwide directly-used geothermal energy in TJ/a in 1995, 2000, 2005, 2010, 2015 and 2020