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World Geothermal Congress 2023

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Comprehensive Comparative Study On Geothermal Energy Development and Other Clean Energy In Tibet Based On Carbon Emissions Control

Tibet has abundant clean energy resources and is an important ecological functional area and frozen soil carbon reservoir in China and across Asia. Exploring low-carbon and efficient clean energy plays an important role in protecting the ecological environment and controlling carbon emissions, and is also a major mission for human survival and maintaining the global climate environment in the 21st century. Based on a comprehensive analysis of the current energy development structure and energy consumption of local residents in Tibet, this paper focuses on the operation of the Yangyi geothermal power station in Tibet. Combined with a comprehensive comparison of other clean energy sources in Tibet (wind power, hydropower, photovoltaic, etc.) and geothermal in terms of unit kilowatt investment, power generation efficiency, heating, energy utilization, stability, tourism development, environmental impact, and other aspects. Through surveys and comparative studies, we have the following conclusions: (1) In terms of power generation efficiency, geothermal energy has more than 90% annual utilization hours and strong stability and has absolute advantages in heating and tourism recreation that cannot be matched by other clean energy sources. At present, hydropower and solar photovoltaic are dominant energy sources in Tibet, both of which have strong seasonal instability factors; (2) Analysis from the investment point of view, the unit kilowatt cost and power generation of geothermal in Tibet are relatively high, exceeding 30,000Yuan/kW. The output value of unit kilowatt power is also 2-3 times higher than photovoltaic and wind power; (3) Geothermal power generation and heating will further reduce local people's dependence on traditional organic biomass energy such as cow dung; (4) Geothermal development may cause groundwater pollution, noise pollution, heavy metal pollution, etc. With the improvement of technology level, these environmental impacts are gradually reduced; (5) In summary, the development of geothermal energy plays an important regulatory role in improving the energy structure of Tibet, controlling carbon emissions and further improving the situation of seasonal energy shortage in Tibet. Government policies and technology upgrades to encourage the growth of the geothermal energy industry have a crucial role in the development of geothermal energy in Tibet.

Ngawang Gyatso Ngawang Gyatso
School of Ecology and Environment, Tibet University, Lhasa 850000, China; Three Gorges Group Tibet Energy Investment Co., Ltd. Lhasa 850000, China


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