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Modelling the Energy Production of a Borehole Thermal Energy Storage (BTES) System

Author

Listed:
  • Jessica Maria Chicco

    (Interuniversity Department of Regional, and Urban Studies, and Planning (DIST), University of Turin, 10125 Torino, Italy)

  • Giuseppe Mandrone

    (Interuniversity Department of Regional, and Urban Studies, and Planning (DIST), University of Turin, 10125 Torino, Italy)

Abstract

Geopolitical developments since February 2022 and the numerous debates on climate change such as the COP27 are pushing for a greater acceleration in decarbonising the energy sector. The use of geothermal energy for thermal energy production and storage in district heating and cooling (DHC) grids may also be a key element in overcoming short-term energy peaks. This work aimed at evaluating the efficiency and performance of one of the most promising underground thermal energy storage systems, which uses boreholes to store heat or cold (BTES). Numerical simulations allowed for understanding how these technologies can be used as backup systems, or when the energy demand overcomes that supplied by conventional heating systems. The knowledge on how to exploit this energy source shows that a continuous heat extraction from the storage volume can meet both the base and peak load requests for several users, with cumulative energy amounting to 476,000 kWh over the first month. This study proved how the integration of these technologies in DHC contexts can contribute to greater energy and economic savings, becoming an efficient and flexible solution to meet the energy demand from the grid, and also as a backup system.

Suggested Citation

  • Jessica Maria Chicco & Giuseppe Mandrone, 2022. "Modelling the Energy Production of a Borehole Thermal Energy Storage (BTES) System," Energies, MDPI, vol. 15(24), pages 1-18, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9587-:d:1006424
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    Cited by:

    1. Jessica Maria Chicco & Leonardo Fonte & Giuseppe Mandrone & Andrea Tartaglino & Damiano Vacha, 2023. "Hybrid (Gas and Geothermal) Greenhouse Simulations Aimed at Optimizing Investment and Operative Costs: A Case Study in NW Italy," Energies, MDPI, vol. 16(9), pages 1-18, May.

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