Geoenergy potential map of the City of Turku grid plan area

The survey carried out in 2016 is mainly based on GTK’s existing geological dataset and research reports. In addition, in order to refine the ground cover thickness data in the area, the customer’s technical operation drilling data, data on drilled energy wells and energy well registers of energy wells operating in the area were also used for the thicknesses of the land well sections of the energy wells carried out during the period prior to the procedure authorisation procedure. The work also included field surveys and examination of old drilling samples. The Geoenergy Potential Map cannot be used as such for dimensioning energy wells or wells in real estates, because the map is always a generalised representation, regardless of its accuracy. The map does not show groundwater areas, water abstraction sites — including areas, nature conservation — areas, underground structures and any other area reservations that may restrict the use of geoenergy.