High Enthalpy Shallow Geothermal Energy: The Anomaly

  1. Gil, Alejandro
  2. Santamarta, Juan Carlos 1
  3. Baquedano, Carlos
  4. Martínez León, Jorge
  5. Marazuela, Miguel Ángel
  6. Gasco Cavero, Samanta
  7. Jimenez, Jon
  8. Alonso Sánchez, Teresa
  9. Rey Ronco, Miguel Ángel
  10. Sánchez-Navarro, José Ángel
  11. Andreu Gallego, Alicia
  12. Tiscar Cervera, Juan Miguel
  1. 1 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Aktak:
EGU General Assembly (2024. Viena)

Argitalpen urtea: 2024

Mota: Biltzar ekarpena

DOI: 10.5194/EGUSPHERE-EGU24-17780 GOOGLE SCHOLAR lock_openSarbide irekia editor

Laburpena

The SAGE4CAN project focuses on investigating the shallow geothermal potential of the Canary Islands. During the project execution in 2021, the Tajogaite volcanic eruption took place. This eruption resulted in the deposition of lava flows, totaling approximately 200 million cubic meters, with temperatures ranging between 400 and 900°C. Remarkably, these materials represent a shallow geothermal reservoir of exceptionally high enthalpy, deviating from conventional shallow geothermal reservoirs that typically maintain temperatures close to the annual atmospheric average.This study presents the calculated results of harnessing geothermal energy from these deposits during the cooling period of the lava flows. The goal is to extract heat from the reservoir to generate both electricity and domestic hot water. The unique nature of this geothermal reservoir, characterized by its elevated temperatures, challenges the conventional understanding of shallow geothermal systems, offering an exceptional opportunity for sustainable energy utilization in the Canary Islands. Moreover, these findings provide a framework for redefining shallow geothermal potential, traditionally associated only with depth. While depth remains a crucial factor, our study highlights the exception that proves the rule, demonstrating that geothermal anomalies, such as the one observed here, contribute valuable insights to the broader understanding of shallow geothermal resources in the Canary Islands.