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Compact Thermal Energy Storage: Technology Position Paper
This work was done at AEE INTEC and funded by the Austrian ministry of climate and energy. The position paper provides an overview of the compact thermal energy storage technologies market, outlining its importance, potential, and development. It addresses policy, decision makers, and influencers and aims to present high-level information as a basis for uptake and further development. It concludes by highlighting actions needed to further exploit thermal energy storages with minimal space requirements and accelerate more efficient energy systems, including sector coupling, with a higher share of renewables.
Thermal Energy Storage R&D in the Netherlands: international assessment.
Many institutes and industries in The Netherlands are researching, developing and producing thermal energy storage technologies. To have a better view on the relative position of the Dutch R&D activities on thermal energy storage an assessment was made, focussing on 7 different application areas. It was found that The Netherlands have a pioneering role in aquifer thermal energy storage (ATES) and Iron-Redox technology, and international experts regard the Netherlands as a leader in TCM, thermochemical heat storage. For other central heat storage technologies, such as pit thermal energy storage, tank thermal energy storage, and for high-temperature sensible heat, collaboration with foreign parties is found necessary to acquire knowledge of these technologies.
The study was performed for the Dutch Enterprise Organisation (RVO) and the Topsector Knowledge and Innovation (TKI) Urban Energy.
IEA SHC Task 67: Compact Thermal Energy Storage Materials Within Components Within Systems
This work was done at AEE INTEC, supported by the Austrian ministry of Climate and Energy. Wim van Helden was one of the Task Managers for this so-called Task of the Solar Heating and Cooling TCP (Technology Collaboration Program) of the International Energy Agency IEA. The purpose of the Task is to push forward the compact thermal energy storage technology developments to accelerate the market introduction of these technologies through the international collaboration of experts from materials research, components development and system integration, and industry and research organizations. The work was performed in 5 subtasks, focussed on Material Characterisation, on Material Improvement, on Determination of State-of-Charge, on Stability of Phase Change Materials and Thermochemical Materials and on Effective Component Performance with Innovative Materials. Highlights, Technology Position Paper and results and outcomes can be found on the website.
Ongoing project: Strengthening the involvement of Dutch Municipalities and Financers with the uptake of Large Thermal Energy Storage technologies.
Large Thermal Energy Storages (LTES) are a key technology for district heating networks. They provide flexibility and
make a 100% renewable heat provision for district possible.
An international group of experts is working on further development of LTES technologies and on accelerating their
market uptake. This is done in a so-called Task of the Energy Storage programme of the International Energy Agency IEA
Task45 and its predecessor Task39.
To strengthen the involvement of Dutch stakeholders from municipalities and finance institutions, the Dutch Enterprice
Agency RVO has ordered Renewable Heat and DTESS to make inventories of the information need and the challenges met by
these stakeholders, to input this in the international working group and to organise targeted information to the
stakeholders through publications and a workshop. This work will be performed throughout 2025.
