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

•A shallow (≈200 m) geothermal energy system, located in the Faroe Islands in the Northeast Atlantic, is examined.•The likely meteoric water flowing in the wells is approximately 27°C, with the capacity of heating >150 privet houses.•The abnormally high water temperatures in these artesian wells can be explained by a topography-driven vertical convection.•The water flows into the wells from the north-northwest through fractures and flow tops and bases in the basalt.•Of six influx zones, three are water carrying fractures that stike N-S and dip E.