Shallow geothermal energy system in fractured basalt: A case study from Kollafjørður, Faroe Islands, NE-Atlantic Ocean

Research output: Contribution to journalJournal articleResearchpeer-review

A shallow (≈200 m) geothermal energy system is examined in the Faroe Islands, a 60-million-year-old volcanic archipelago in the Northeast Atlantic. The geothermal water has a heating capacity of approximately 150 individual households and consists of meteoric water approximately 3 years old. Water temperatures as high as 27 °C in artesian wells are explained by a topography-driven vertical convection. The water flows into the boreholes from the north-northwest through fractures and flow tops and bases in the basalt exposed in surrounding high terrains. Of six influx zones, three are water carrying fractures that strike N–S and dip E.

Original languageEnglish
JournalGeothermics
Volume82
Pages (from-to)296-314
Number of pages19
ISSN0375-6505
DOIs
Publication statusPublished - 2019

    Research areas

  • Faroe Islands, Fractured basalt, Optical televiewer, Plateau basalt, Shallow-geothermal energy, Wireline logs

ID: 226531839