Heat from water & heat transition

From potential map to decision instrument

Heat Insight links heat from water (TEO, TEA and TED) to heat demand per neighbourhood. You see where sources are relevant, which factors affect how promising they are, and where further study is worthwhile.

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More information
  • TEO, TEA and TED in one view
  • Heat demand per neighbourhood
  • From quickscan to area analysis
Heat transition
Calculations that used to take us a week are now done in minutes. That saves us a huge amount of time and money.
Waternet

Harry de Brauw

Energy transition advisor

ESG Maps products are already used by:

Trusted by municipalities, provinces and organisations in the Netherlands and Belgium

Gemeente Deventer
Gemeente Mook en Middelaar
Gemeente Emmen
Gemeente Wierden
Gemeente Borger-Odoorn
Gemeente Echt-Susteren
Provincie Groningen
Gemeente Landgraaf
Gemeente Sittard-Geleen
Gemeente Westerveld
Gemeente Assen
Gemeente Almelo
Gemeente Oldambt
Gemeente Enschede
Gemeente De Wolden
HHNK
Gemeente Hellendoorn
Hof van Twente
Provincie Overijssel
Gemeente Midden-Drenthe
Gemeente Eindhoven
Gemeente Houten
Provincie Drenthe
Gemeente Bunnik
Gemeente Meppel
Gemeente Coevorden
Gemeente Westerkwartier
Gemeente Heerlen
Gemeente Deventer
Gemeente Mook en Middelaar
Gemeente Emmen
Gemeente Wierden
Gemeente Borger-Odoorn
Gemeente Echt-Susteren
Provincie Groningen
Gemeente Landgraaf
Gemeente Sittard-Geleen
Gemeente Westerveld
Gemeente Assen
Gemeente Almelo
Gemeente Oldambt
Gemeente Enschede
Gemeente De Wolden
HHNK
Gemeente Hellendoorn
Hof van Twente
Provincie Overijssel
Gemeente Midden-Drenthe
Gemeente Eindhoven
Gemeente Houten
Provincie Drenthe
Gemeente Bunnik
Gemeente Meppel
Gemeente Coevorden
Gemeente Westerkwartier
Gemeente Heerlen
Gemeente Deventer
Gemeente Mook en Middelaar
Gemeente Emmen
Gemeente Wierden
Gemeente Borger-Odoorn
Gemeente Echt-Susteren
Provincie Groningen
Gemeente Landgraaf
Gemeente Sittard-Geleen
Gemeente Westerveld
Gemeente Assen
Gemeente Almelo
Gemeente Oldambt
Gemeente Enschede
Gemeente De Wolden
HHNK
Gemeente Hellendoorn
Hof van Twente
Provincie Overijssel
Gemeente Midden-Drenthe
Gemeente Eindhoven
Gemeente Houten
Provincie Drenthe
Gemeente Bunnik
Gemeente Meppel
Gemeente Coevorden
Gemeente Westerkwartier
Gemeente Heerlen
Gemeente Ameland
Gemeente De Bilt
Gemeente Tynaarlo
Gemeente Groningen
Gemeente Dalfsen
Gemeente Heerenveen
Gemeente Leiden
Gemeente Kampen
Gemeente Hardenberg
Gemeente Gulpen-Wittem
Provincie Limburg
Gemeente Rijswijk
Energie Regio Utrecht
Stad Antwerpen
Gemeente Achtkarspelen
Gemeente Utrecht
Gemeente Leudal
Gemeente Dinkelland
Gemeente Leeuwarden
Gemeente Horst aan de Maas
Gemeente Nijmegen
Gemeente Lelystad
Gemeente Beek
Gemeente Hengelo
Provincie Utrecht
Provincie Noord-Holland
De Fryske Marren
Gemeente Eemsdelta
Gemeente Ameland
Gemeente De Bilt
Gemeente Tynaarlo
Gemeente Groningen
Gemeente Dalfsen
Gemeente Heerenveen
Gemeente Leiden
Gemeente Kampen
Gemeente Hardenberg
Gemeente Gulpen-Wittem
Provincie Limburg
Gemeente Rijswijk
Energie Regio Utrecht
Stad Antwerpen
Gemeente Achtkarspelen
Gemeente Utrecht
Gemeente Leudal
Gemeente Dinkelland
Gemeente Leeuwarden
Gemeente Horst aan de Maas
Gemeente Nijmegen
Gemeente Lelystad
Gemeente Beek
Gemeente Hengelo
Provincie Utrecht
Provincie Noord-Holland
De Fryske Marren
Gemeente Eemsdelta
Gemeente Ameland
Gemeente De Bilt
Gemeente Tynaarlo
Gemeente Groningen
Gemeente Dalfsen
Gemeente Heerenveen
Gemeente Leiden
Gemeente Kampen
Gemeente Hardenberg
Gemeente Gulpen-Wittem
Provincie Limburg
Gemeente Rijswijk
Energie Regio Utrecht
Stad Antwerpen
Gemeente Achtkarspelen
Gemeente Utrecht
Gemeente Leudal
Gemeente Dinkelland
Gemeente Leeuwarden
Gemeente Horst aan de Maas
Gemeente Nijmegen
Gemeente Lelystad
Gemeente Beek
Gemeente Hengelo
Provincie Utrecht
Provincie Noord-Holland
De Fryske Marren
Gemeente Eemsdelta

Knowing there is water is not enough

Heat from water uses thermal energy from surface water (TEO), wastewater (TEA) and drinking water (TED). A national potential map shows where heat is technically available. Policy needs the next question: where does that heat meet the built environment, and under which conditions does it stay promising?

Demand and supply on the same map

Heat Insight brings sources, neighbourhood demand, distance, networks and scenarios together. Select a district and see whether heat from water deserves a first shortlist — before you develop an area vision or heat-transition plan.

  • Quickscan: which neighbourhoods qualify
  • Heat demand next to supply in waters and pipes
  • Deepening: extraction, ecology, ATES, distance and networks
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Heat Insight on a tablet: TEO potential, heat demand and network layers in Sittard-Geleen

Three sources, plus the demand that makes them meaningful

The WarmingUP example (not Heat Insight itself) shows how heat from water is built in layers: orient first, then go deeper. Heat Insight follows the same logic in ESG Maps, next to your other municipal data.

  • TEO

    Surface water

  • TEA

    Wastewater

  • TED

    Drinking water

  • Demand

    Per neighbourhood

  • Scan

    Quickscan: where technical potential is relevant for neighbourhoods

  • 2021

    Deepening: feasibility, extraction regimes and sensitivity as map layers

  • Vision

    Area analysis and area vision as input for the heat-transition plan

The Aquathermie Viewer workflow

The WarmingUP MapTour explains the viewer as: quickscan for a first selection, deepening for the factors, area analysis for scenarios. That is not a one-off report, but a repeatable process for regional energy strategy, heat-transition plans and local trade-offs.

WarmingUP Aquathermie Viewer: area analysis for TEA and TEO on an aerial map

Example · WarmingUP Aquathermie Viewer — not Heat Insight, a public viewer showing how the workflow can look

  1. Potential quickscan

    At a glance, neighbourhoods that may qualify for TEO, TEA or TED, related to local demand.

  2. Heat demand

    Supply means little without demand. Link thermal energy in waters and pipes to demand per neighbourhood.

  3. Deepening

    Extraction regimes, ecological risk, ATES capacity, distance to demand and heat-network prospects.

  4. Area analysis

    What share of heat demand TEO can cover under different conditions — including multiple extractions.

Example · WarmingUP (not the product)

This is how a heat-from-water viewer can work

The national WarmingUP Aquathermie Viewer is a public working example: not an ESG Maps product, but the same kind of workflow. It started as a way to make research potential explorable. Users — municipalities, energy strategists, water authorities — kept using it. Deltares, Syntraal and STOWA contributed knowledge. Open the live viewer or the MapTour to see how quickscan, demand, deepening and area analysis come together in a GIS environment.

Open the example (viewer)

This is how a heat-from-water viewer can work

Wastewater treatment plant beside a river: a source of thermal energy from wastewater

01 / 03

The source in the landscape

TEA starts with wastewater, TEO with surface water, TED with drinking water. Potential is only usable once you link it to neighbourhoods that need heat.

See it in a live viewer

WarmingUP’s Aquathermie Viewer is a public national map for heat from water. It is a useful example of this workflow, not the Heat Insight product. Heat Insight is the version that lives in ESG Maps, next to your other layers.

  • Open the live map

    Zoom to a region, switch TEO, TEA and TED, and run an area analysis. Built by WarmingUP on GeoApps.

    Open the map
  • aquathermieviewer.nl

    The same national viewer, under a public URL you can share with colleagues.

    Open the public site
  • Walk through it first

    The MapTour explains the layers in order: quickscan, demand, deepening, then area analysis.

    Start the MapTour
  • How the viewer grew

    The story of how a potential map became a tool people kept using after the research programme ended.

    Read the article
When heat from water looks promising, extra research into local conditions is always needed.
WarmingUP Aquathermie MapTour

A quickscan is not feasibility

High technical potential does not automatically mean a project. The MapTour and viewer make that explicit: select first, then inspect the factors, then calculate an area. Large-scale use needs an area vision for heat from water — source depletion, downstream effects, interference between extractions, and agreements on allocation and permitting.

Supply reliability

Different heat-extraction regimes for TEO and TEA show how reliable the source is, not only how much heat it theoretically holds.

Ecology and water management

Cold-water discharges and temperature differences belong in the spatial trade-off. Water authorities need that picture next to the energy question.

From viewer to vision

An area vision for heat from water feeds the heat-transition plan, where those sources are weighed against other heat options.

Current page

Fully integrated

Heat Insight sits in the ESG Maps platform, together with insulation, urban heat, green and your other sustainability layers, so sources, demand and liveability share one picture.

Heat Insight

What customers say

Experiences from organisations working with ESG Maps.

Waternet
Calculations that used to take us a week are now done in minutes. That saves us a huge amount of time and money.

Harry de Brauw

Energy transition advisor

Stedin
ESG-Maps has helped us plan and deliver our energy transition projects more efficiently.

Warmold ten Zijthoff

Manager Building Sustainability, Stedin

Gemeente Hengelo
Developers invest a lot in greening, but it was hard to see what that actually delivered overall. With the new analysis we could draw up a concrete green balance for the first time.

Mark Hoksberg

Urban ecologist, Municipality of Hengelo

Syntraal
We present our expertise as interactive map applications, not dry reports. Colleagues without technical knowledge can use them too - ESG-Maps is an essential foundation for policy-making.

Simon Bos

Syntraal (voormalig)

Gemeente Groningen
ESG-Maps has helped us make sustainability data accessible to everyone. The platform combines powerful visualisation with an easy user experience.

Dominique Goes

TAUW (for Municipality of Groningen)

Syntraal
Together with MapGear (ESG-Maps) we built a realistic solar potential forecast for Groningen in 2035 - combining data on roofs, heat pumps, electric driving and policy choices.

Joris van de Ven

Syntraal

Transitiemakers
Together with MapGear (ESG-Maps) we developed the TransitiePlanner for energy, climate adaptation and mobility. We are building a dynamic dossier for sustainable business parks.

Thomas Pesiwarissa

Transitiemakers

Provincie Drenthe
With Asbestdakenkaart we finally have an overview of our asbestos data and remediation progress. One place to prioritise, monitor and report.

Province of Drenthe

Asbestos roof policy

Waternet
Calculations that used to take us a week are now done in minutes. That saves us a huge amount of time and money.

Harry de Brauw

Energy transition advisor

Stedin
ESG-Maps has helped us plan and deliver our energy transition projects more efficiently.

Warmold ten Zijthoff

Manager Building Sustainability, Stedin

Gemeente Hengelo
Developers invest a lot in greening, but it was hard to see what that actually delivered overall. With the new analysis we could draw up a concrete green balance for the first time.

Mark Hoksberg

Urban ecologist, Municipality of Hengelo

Syntraal
We present our expertise as interactive map applications, not dry reports. Colleagues without technical knowledge can use them too - ESG-Maps is an essential foundation for policy-making.

Simon Bos

Syntraal (voormalig)

Gemeente Groningen
ESG-Maps has helped us make sustainability data accessible to everyone. The platform combines powerful visualisation with an easy user experience.

Dominique Goes

TAUW (for Municipality of Groningen)

Syntraal
Together with MapGear (ESG-Maps) we built a realistic solar potential forecast for Groningen in 2035 - combining data on roofs, heat pumps, electric driving and policy choices.

Joris van de Ven

Syntraal

Transitiemakers
Together with MapGear (ESG-Maps) we developed the TransitiePlanner for energy, climate adaptation and mobility. We are building a dynamic dossier for sustainable business parks.

Thomas Pesiwarissa

Transitiemakers

Provincie Drenthe
With Asbestdakenkaart we finally have an overview of our asbestos data and remediation progress. One place to prioritise, monitor and report.

Province of Drenthe

Asbestos roof policy

Want to follow heat from water and heat demand in your municipality the same way?

Request a demo of Heat Insight: quickscan, deepening and area analysis, linked to your other sustainability maps.

Frequently asked questions

Answers about heat from water, the WarmingUP viewer and Heat Insight.

TEO is thermal energy from surface water, TEA from wastewater and TED from drinking water. The WarmingUP Aquathermie Viewer and Heat Insight make the potential of these three sources spatially accessible and link it to heat demand per neighbourhood.

The WarmingUP viewer is a public example (knowledge from Deltares, Syntraal and STOWA among others), not part of the Heat Insight product. You will find it at warmingup.geoapps.nl/aquathermie and aquathermieviewer.nl; the MapTour explains the structure. Heat Insight brings the same kind of workflow — quickscan, demand, deepening, area analysis — into ESG Maps, next to your other municipal layers.

No. The MapTour is clear: the viewer is a first step. Extra local research remains necessary. Large-scale application needs an area vision for heat from water, including cumulative extractions, ecological effects and permitting.

Yes. Linking heat supply in waters and pipes to demand per neighbourhood aligns with RES and heat-transition plans. An area vision for heat from water is input for the broader comparison of heat options.

Besides TEO, TEA and TED you can include waste heat, ground energy and heat networks, so you compare options spatially instead of in separate reports.

Yes. API access and export to common formats are available. Connections with ArcGIS, QGIS and municipal or regional portals are possible.

Contact

Want to know more?

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info@mapgear.nl+31 570 746 070
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7418 AJ Deventer
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