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Volume 45 | Copyright
Adv. Geosci., 45, 51-56, 2018
https://doi.org/10.5194/adgeo-45-51-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  27 Jul 2018

27 Jul 2018

Numerical study of the Martelange mine to be used as underground reservoir for constructing an Underground Pumped Storage Hydropower plant

Estanislao Pujades1, Philippe Orban2, Pierre Archambeau3, Sebastien Erpicum3, and Alain Dassargues2 Estanislao Pujades et al.
  • 1Department of Computational Hydrosystems, UFZ – Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318 Leipzig, Germany
  • 2Hydrogeology and Environmental Geology, Geo3, Dpt ArGEnCo, Aquapole, University of Liege, 4000 Liege, Belgium
  • 3Hydraulics in Environmental and Civil Engineering (HECE), Dpt ArGEnCo, Aquapole, University of Liege, 4000 Liege, Belgium

Abstract. Underground Pumped Storage Hydropower (UPSH) using abandoned mines has been considered as a potential high capacity Energy Storage Systems. In UPSH plants, the excess of electricity is stored in the form of potential energy by pumping water from an underground reservoir (abandoned mine in this paper) to a surface reservoir, while electricity is produced (when the demand increases) discharging water from the surface into the underground reservoir. The main concerns may arise from the water exchanges occurring between the underground reservoir and the surrounding medium, which are relevant in terms of environmental impact and UPSH efficiency. Although the role of the water exchanges has been previously addressed, most studies are based on synthetic models. This work focuses on a real abandoned slate mine located in Martelange (Belgium). The effects of different rehabilitation works to prepare the mine as an underground reservoir are assessed in terms of groundwater exchanges and their associated consequences.

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The main concern of UPSH using abandoned mines is the water exchanges between the underground reservoir and the surrounding medium, which are relevant in terms of environmental impact and the system efficiency. This work is based in real abandoned slate mine and investigates how the geometry of the mine affects the groundwater exchanges and their associated consequences.
The main concern of UPSH using abandoned mines is the water exchanges between the underground...
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