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Regional-Scale Assessment of the Potential for Shallow Geothermal Energy Development Using Vertical Ground Source Heat Pumps

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  • Peng Yu

    (Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China
    Key Laboratory of Coupling Process and Effect of Natural Resources Elements, Beijing 100055, China
    Key Laboratory of Geological Disaster Risk Prevention and Control of Shandong Provincial Emergency Management Department (Under Preparation), Jinan 250014, China)

  • Yufeng Xu

    (China Highway Second Highway Survey, Design, and Research Institute Co., Ltd., Wuhan 430058, China)

  • Honghua Liu

    (Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China)

  • Xinyu Liu

    (Department of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China)

  • Jiani Fu

    (Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China)

  • Meijun Xu

    (Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China)

  • Dankun Zhou

    (Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China)

Abstract

Shallow geothermal energy (SGE) is a widely prevalent geological resource underground, and its utilization offer significant energy conservation and emission reduction benefits, contributing to the achievement of carbon neutrality goals. Assessing the development potential of regional SGE can ensure sustainable development of these resources and prevent adverse effects induced by overexploitation. Jiangsu Province, a developed region in the eastern coastal area of China, has a strong demand for cooling and heating in urban buildings. The primary form of utilizing SGE in this area is through vertical ground source heat pumps (VGSHP). Based on the analysis of the impact of regional geological conditions on the development of SGE, this study specifically evaluated the suitability of developing SGE through VGSHP. After excluding areas unsuitable for development, the heat exchange capacity, heating or cooling area per unit area, and energy conservation and emission reduction benefits of VGSHP were calculated. The results indicate that the area suitable and moderately suitable for developing SGE through VGSHP in Jiangsu Province amounts to 76,453 km 2 . The total heat exchange capacity for summer is 1.21 × 10 9 kW, which can provide cooling for an area of 1.21 × 10 10 m 2 . The total heat exchange capacity for winter is 8.70 × 10 8 kW, which can provide heating for an area of 1.09 × 10 10 m 2 . The annual available resource amount is 2.68 × 10 12 kWh, equivalent to 3.30 × 10 8 tons of standard coal, and a CO 2 reduction of 7.86 × 10 8 tons.

Suggested Citation

  • Peng Yu & Yufeng Xu & Honghua Liu & Xinyu Liu & Jiani Fu & Meijun Xu & Dankun Zhou, 2024. "Regional-Scale Assessment of the Potential for Shallow Geothermal Energy Development Using Vertical Ground Source Heat Pumps," Energies, MDPI, vol. 17(17), pages 1-17, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:17:p:4363-:d:1468659
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    References listed on IDEAS

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    1. Wang, Yuqing & Liu, Yingxin & Dou, Jinyue & Li, Mingzhu & Zeng, Ming, 2020. "Geothermal energy in China: Status, challenges, and policy recommendations," Utilities Policy, Elsevier, vol. 64(C).
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    3. Francesco, Tinti & Annamaria, Pangallo & Martina, Berneschi & Dario, Tosoni & Dušan, Rajver & Simona, Pestotnik & Dalibor, Jovanović & Tomislav, Rudinica & Slavisa, Jelisić & Branko, Zlokapa & Attilio, 2016. "How to boost shallow geothermal energy exploitation in the adriatic area: the LEGEND project experience," Energy Policy, Elsevier, vol. 92(C), pages 190-204.
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