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Thermogis
Geothermal mapping

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  • Technical Information
    • What is ThermoGIS?
    • Aquifers
    • Aquifer properties
    • Temperature model
    • Heat pumps
    • Data availability maps
    • Publications
    • Calculation model (geothermal energy)
    • Rekenmodel (HTO)
    • Maps
    • Versions
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  • New developments
    • Breda Formation
    • Application on shallow Brussels Sand
    • Aquifer Thermal Energy Storage (ATES)
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  • What is ThermoGIS?
  • Aquifers
    • Areal extent, gross thickness and depth
    • Dinantian
  • Aquifer properties
    • Porosity and permeability
    • Net-to-gross
    • Stacked layers
  • Temperature model
  • Heat pumps
  • Data availability maps
  • Publications
  • Calculation model (geothermal energy)
    • DoubletCalc1D
    • Technical model
    • Economic model
    • Alternative scenarios
    • Doublet and economic parameters
  • Rekenmodel (HTO)
    • What is HT-ATES?
    • ROSIM-DoubletCalc3D
    • Technical model
    • Economic model
    • Doublet- and economic parameters
  • Maps
  • Versions
    • ThermoGIS v2.5, august 2025
    • ThermoGIS v2.4, mei 2025
    • ThermoGIS v2.3, April 2024
    • ThermoGIS v2.2, November 2022
    • ThermoGIS v2.1, March 2019
    • ThermoGIS v2.0, October 2018
    • ThermoGIS v1, 2012
  • Request data

Calculation model

ThermoGIS shows the technical and economic potential for 'direct use' geothermal heat extraction in the form of a large number of maps. Using DoubletCalc1D, the technical model first determines the technical feasibility of geothermal hot water production (flow rate, power) per 1x1 km grid cell. Then, using an economic model, the economic potential is calculated.

Two alternative scenarios are calculated to determine the effect of stimulation and addition of a heat pump.

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ThermoGIS is developed and managed by TNO Geological Survey of The Netherlands.

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