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High-Temperature Aquifer Thermal Energy Storage (HT-ATES) Projects in Germany and the Netherlands—Review and Lessons Learned †.

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Title: High-Temperature Aquifer Thermal Energy Storage (HT-ATES) Projects in Germany and the Netherlands—Review and Lessons Learned †.
Authors: Dobson, Patrick1 (AUTHOR) pfdobson@lbl.gov, McLing, Travis2 (AUTHOR), Spycher, Nicolas1,3 (AUTHOR), Fleuchaus, Paul3,4 (AUTHOR), Neupane, Ghanashyam2,5 (AUTHOR), Doughty, Christine1,6 (AUTHOR), Zhang, Yingqi1,7 (AUTHOR), Smith, Robert1,4 (AUTHOR), Atkinson, Trevor2 (AUTHOR), Jin, Wencheng3,5 (AUTHOR), Blum, Philipp4,6 (AUTHOR), Dinkelman, Dorien5,7 (AUTHOR), Veldkamp, Hans6,7 (AUTHOR)
Source: Energies (19961073). Dec2025, Vol. 18 Issue 23, p6292. 57p.
Subject Terms: *High temperatures, *Heat storage, *Energy density, *Stakeholder analysis, *Analytical geochemistry
Geographic Terms: Germany, Netherlands
Abstract: Aquifer thermal energy storage (ATES) is a concept that can help to address heating and cooling needs through the use of the subsurface as a seasonal thermal energy storage (STES) system. Over 2800 ATES systems have been deployed with storage temperatures typically below 25 °C and only a few with higher temperatures (>40 °C), which would increase the energy density and utility of the stored thermal fluids. Until now, only a few high-temperature aquifer thermal energy storage (HT-ATES) projects have been initiated and are still in operation. These HT-ATES projects have encountered a range of technical and non-technical challenges. This study reviews ten such projects: four in Germany and six in the Netherlands. The non-technical issues include public acceptance, a lack of regulatory framework for these systems, managing overlapping uses of the subsurface, managing changes with the providers and off-takers of thermal energy, and obtaining financing to implement these projects. Common technical issues include geological factors such as incomplete characterization of the subsurface and reservoir heterogeneity; geochemical issues such as mineral scaling, corrosion, and biofouling; lower than expected thermal recovery; and issues with system design and reliability. This review highlights benefits and challenges faced by HT-ATES projects with the goal to use the lessons learned to improve the siting, design, development, and operation of such systems. Recommendations include improved initial subsurface site characterization, use of coupled process models to optimize system design and predict system performance, cascaded uses of stored thermal energy to better utilize the stored heat, monitoring networks to provide feedback on system performance, and expanded system scale to allow for continued operation even when maintenance of some system components is required. Techno-economic modeling and risk analysis could be used to optimize such HT-ATES project design and identify key factors that will affect sustained economic viability. In addition, design flexibility is important for these systems to allow for changing conditions regarding the supply and demand of thermal energy. Adopting these findings should improve the performance and reduce the risks for future HT-ATES projects worldwide. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 190518019
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PubType: Academic Journal
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  Data: High-Temperature Aquifer Thermal Energy Storage (HT-ATES) Projects in Germany and the Netherlands—Review and Lessons Learned †.
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  Data: <searchLink fieldCode="AR" term="%22Dobson%2C+Patrick%22">Dobson, Patrick</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pfdobson@lbl.gov</i><br /><searchLink fieldCode="AR" term="%22McLing%2C+Travis%22">McLing, Travis</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Spycher%2C+Nicolas%22">Spycher, Nicolas</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fleuchaus%2C+Paul%22">Fleuchaus, Paul</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Neupane%2C+Ghanashyam%22">Neupane, Ghanashyam</searchLink><relatesTo>2,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Doughty%2C+Christine%22">Doughty, Christine</searchLink><relatesTo>1,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yingqi%22">Zhang, Yingqi</searchLink><relatesTo>1,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Smith%2C+Robert%22">Smith, Robert</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Atkinson%2C+Trevor%22">Atkinson, Trevor</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jin%2C+Wencheng%22">Jin, Wencheng</searchLink><relatesTo>3,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Blum%2C+Philipp%22">Blum, Philipp</searchLink><relatesTo>4,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dinkelman%2C+Dorien%22">Dinkelman, Dorien</searchLink><relatesTo>5,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Veldkamp%2C+Hans%22">Veldkamp, Hans</searchLink><relatesTo>6,7</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2025, Vol. 18 Issue 23, p6292. 57p.
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  Data: *<searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br />*<searchLink fieldCode="DE" term="%22Heat+storage%22">Heat storage</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br />*<searchLink fieldCode="DE" term="%22Stakeholder+analysis%22">Stakeholder analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Analytical+geochemistry%22">Analytical geochemistry</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Germany%22">Germany</searchLink><br /><searchLink fieldCode="DE" term="%22Netherlands%22">Netherlands</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Aquifer thermal energy storage (ATES) is a concept that can help to address heating and cooling needs through the use of the subsurface as a seasonal thermal energy storage (STES) system. Over 2800 ATES systems have been deployed with storage temperatures typically below 25 °C and only a few with higher temperatures (>40 °C), which would increase the energy density and utility of the stored thermal fluids. Until now, only a few high-temperature aquifer thermal energy storage (HT-ATES) projects have been initiated and are still in operation. These HT-ATES projects have encountered a range of technical and non-technical challenges. This study reviews ten such projects: four in Germany and six in the Netherlands. The non-technical issues include public acceptance, a lack of regulatory framework for these systems, managing overlapping uses of the subsurface, managing changes with the providers and off-takers of thermal energy, and obtaining financing to implement these projects. Common technical issues include geological factors such as incomplete characterization of the subsurface and reservoir heterogeneity; geochemical issues such as mineral scaling, corrosion, and biofouling; lower than expected thermal recovery; and issues with system design and reliability. This review highlights benefits and challenges faced by HT-ATES projects with the goal to use the lessons learned to improve the siting, design, development, and operation of such systems. Recommendations include improved initial subsurface site characterization, use of coupled process models to optimize system design and predict system performance, cascaded uses of stored thermal energy to better utilize the stored heat, monitoring networks to provide feedback on system performance, and expanded system scale to allow for continued operation even when maintenance of some system components is required. Techno-economic modeling and risk analysis could be used to optimize such HT-ATES project design and identify key factors that will affect sustained economic viability. In addition, design flexibility is important for these systems to allow for changing conditions regarding the supply and demand of thermal energy. Adopting these findings should improve the performance and reduce the risks for future HT-ATES projects worldwide. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=190518019
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        Value: 10.3390/en18236292
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        Text: English
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        PageCount: 57
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      – SubjectFull: Heat storage
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      – SubjectFull: Energy density
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      – SubjectFull: Analytical geochemistry
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      – SubjectFull: Germany
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      – SubjectFull: Netherlands
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              Text: Dec2025
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