Journal
ENERGIES
Volume 16, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/en16010314
Keywords
mining engineering; energy geostructure; abandoned mine; pumped storage; feasibility study
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With China's carbon neutrality target, the fossil energy industry is declining while new energy is increasing. However, China's current energy storage facilities are insufficient. The unique features of abandoned mines offer potential for large-scale pumped storage power stations, which can address economic, ecological, and social problems. A plan for constructing a pumped storage power station using the Shitai Mine in Anhui, China, was proposed to help achieve carbon peaking and neutrality goals.
Due to the proposal of China's carbon neutrality target, the traditional fossil energy industry continues to decline, and the proportion of new energy continues to increase. New energy power systems have high requirements for peak shaving and energy storage, but China's current energy storage facilities are seriously insufficient in number and scale. The unique features of abandoned mines offer considerable potential for the construction of large-scale pumped storage power stations. Several countries have reported the conversion of abandoned mines to pumped storage plants, and a pilot project for the conversion of an underground reservoir group has been formalized in China. A feasibility study that considered the natural conditions, mine conditions, safety conditions, and economic benefits revealed that the construction of pumped storage power stations using abandoned mines could ameliorate several economic, ecological, and social problems, including resource utilization, ecological restoration, and population resettlement. The construction of pumped storage power stations using abandoned mines not only utilizes underground space with no mining value (reduced cost and construction period), but also improves the peak-load regulation and energy storage urgently needed for the development of power grid systems. Combined with the underground space and surface water resources of the Shitai Mine in Anhui, China, a plan for the construction of a pumped storage power station was proposed. The challenges faced by the current project were evaluated, further research suggested, and demonstration projects established in order to help achieve carbon peaking and carbon neutrality goals.
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