Thermal energy storage technologies need to be developed and become an integral component in the future energy system infrastructure to meet variations in both the availability and demand of energy. The main objectives of this project are to lower the cost, reducing the risks and to optimize performance of high temperature (~25 to ~90°C) underground thermal energy storage technologies by demonstrating 6 distinct configurations of heat sources, heat storage, and heat utilization. Technical, economic, environmental, regulatory and policy aspects will be addressed that are necessary to support efficient and cost-effective deployment in Europe. The project will stimulate fast-track market uptake in Europe promoting development from demonstration phase to commercial deployment within 2 to 5 years on the European market and provide an outlook towards utilization of full potential in 2050.

 Project website https://www.heatstore.eu/


  1. ENeRG, the European Network for Research in Geo-Energy Presentation link 

EGC2019 | June 2019

  1. HEATSTORE: High temperature underground thermal energy storage Proceeding link  


TNO - Nederlandse organisatie voor toegepast natuurwetenschappelijk onderzoekNetherlands
Energie Wasser BernSwitzerland
IF TechnologyNetherlands
KWR Watercycle Research InstituteNetherlands
ECW Geomanagement BVNetherlands
University of GenevaSwitzerland
Eidgenössische Technische Hochschule ZurichSwitzerland
University of NeuchatelSwitzerland
University of BernSwitzerland
Bochum University of Applied Sciences / International Geothermal CentreGermany
University of the AzoresPortugal
Reykjavik EnergyIceland
delta-h Engineering GmbHGermany
Noda GmbHGermany
SPIE BelgiumBelgium
Kempens WarmtebedrijfBelgium
Universitat Politécnica de CatalunyaSpain
Netherlands Institute of EcologyNetherlands
Geothermica financingTotal costOwn financing
HEATSTORE - Total financing 8.305.26816.265.9717.960.703