Heat Storage

  • Develop stable and reliable compact thermal energy storages

    Develop stable and reliable compact thermal energy storages

    The IEA Solar Heating and Cooling Programme has redoubled its efforts to develop and test compact thermal energy storage (CTES), saying the technology can play an important role in transforming the energy market. At its meeting in June, the IEA SHC Executive Committee approved the start of...
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  • New chair for IEA SHC Programme on growth path

    New chair for IEA SHC Programme on growth path

    The new Chair of the IEA Solar Heating and Cooling Programme, also known as IEA SHC, is Tomas Olejniczak, an all-around energy transition and renewable energy expert at the Netherlands Enterprise Agency (RVO),  part of the Ministry of Economic Affairs and Climate. He was elected for a...
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  • “Develop a business case for thermal energy storage”

    “Develop a business case for thermal energy storage”

    Thermal energy storage will undoubtedly play a key role in linking the electricity with the heat sector and in decarbonising buildings and industry. It should come as no surprise then that thermal energy storage (TES) technologies are the focus of the latest Innovation Outlook report...
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  • Global thermal storage capacity to triple by 2030

    Global thermal storage capacity to triple by 2030

    There is a broad consensus that solar thermal storage has the potential to be an important driver of decarbonising energy systems around the world. Thermal energy storage, or TES for short, denotes technologies that make it possible to decouple energy generation from demand or move demand...
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  • Improved design for giga-size pit heat storage

    Improved design for giga-size pit heat storage

    Denmark’s cost-effective, tried-and-true seasonal pit heat storage concept needs to be modified if it is to be implemented across Europe, since district heat temperatures are higher and groundwater may be only 5 to 15 metres from the surface. The members of research platform Task 55 (...
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  • Thermal storage for flexible sector integration

    Thermal storage for flexible sector integration

    In his keynote speech at Eurosun 2020, Dr Andreas Hauer talked about the different roles that heat storage could play as part of a whole systems approach to energy policy. Thermal energy storage, or TES, can reduce energy consumers’ dependence on volatile heat sources and align heat with...
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  • Round robins improve TCM testing

    Round robins improve TCM testing

    Thermochemical storage materials (TCMs) offer much higher storage capacities by mass or volume than sensible or latent heat storage and can store heat for an infinite amount of time almost without losses. However, none of them are very advanced so that a common standard for characterising...
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  • Compact heat battery with virtually no heat loss

    Compact heat battery with virtually no heat loss

    A compact thermochemical seasonal storage system put up at a demonstration site in Warsaw, Poland, is working as expected. The prototype, developed and tested as part of an EU research project called CREATE, consists of three evacuated modules filled with 400 litres of salt each to store...
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  • Where you can meet renewable heating specialists over the next six months

    Where you can meet renewable heating specialists over the next six months

    The European Green Deal has been the new EU Commission’s most striking announcement to date. Its aim is to make Europe the first carbon-neutral continent in the world by 2050. The commission announced it would propose a European Climate Act in the first 100 days of its term, which is why...
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  • Source: ZAE Bayern

    In search of cost-effective, advanced PCMs

    Salt hydrates are the most interesting phase change material in the low-temperature range of up to 150 °C. Their volume-related enthalpy at melting is much higher than the enthalpy of paraffins and sugar alcohols (see the chart above) and they are comparatively inexpensive. This is why the...
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  • Chart: Task 58

    Compact thermal energy storage: research in cycles

    Research into compact thermal energy storage is made difficult by the fact that the performance of storage materials depends significantly on their intended purpose. For example, storage tanks that are integrated into space heating systems are made of materials different from those used to...
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  • Chinese market keeps shrinking, but exports on the rise

    Chinese market keeps shrinking, but exports on the rise

    At the beginning of December 2019, the Chinese Solar Thermal Utilisation Specialisation Committee (CSTIF) held its annual conference, which gave attendees the opportunity to learn more about the latest trends in the solar thermal market. Xiaoli Zhang, Director of CSTIF, which is part of the...
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