District Heating, Heat Storage

  • Online database on advanced PCMs

    Compared to water, phase change materials (PCMs) offer more capacity to store heat in tanks. As a consequence, researchers in all corners of the world have been developing new materials and their properties. To ensure the employment of a shared methodology and the use of equivalent terms to...
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  • “Excellent material for sorption-based solar energy storage”

    Microporous hydrophilic substances such as zeolites are recognised as promising materials for very efficient energy storage. Solar thermal systems are used to dry the material and store all of the thermal energy inside without losses until water is returned into the structure to release...
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  • Three November events to promote SHIP

    A lot of efforts still need to be put into raising awareness about solar thermal technologies meeting industrial heat demand. But the good news is that there are three events planned for November to promote solar heat for industrial processes (SHIP) among solar technology suppliers and end...
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  • Map: oscebih.org

    Support for SDH feasibility studies in Western Balkans

    The European Bank for Reconstruction and Development is now funding feasibility studies under a programme called Renewable District Energy in the Western Balkans, or ReDEWeB for short. Town and city governments, and project developers, can send applications to the bank’s headquarters in...
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  • underfloor heating system

    Concrete slabs store thermal energy and heat homes

    Many building owners consider roof-integrated solar systems to be a tried-and-true way of saving as much on their heating bills as they can. A research project called solSPONGEhigh and developed in Austria has shown: When using thermal mass, i.e., the capacity of a building to store heat in...
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  • Task 51

    Lessons learned from urban solar projects

    Cities and municipalities are thought to play a decisive role in transforming energy systems. Urban planners, municipal stakeholders and consulting firms need case studies to demonstrate that solar energy can be integrated successfully into new and existing urban neighbourhoods. It is why...
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  • Combining the strengths of collector technologies

    Task 55 of the IEA SHC Programme is currently studying the benefits of systems equipped with both flat plate and parabolic trough collectors to supply thermal energy to district heating networks. Preliminary results from a project in Taars, Denmark, have been encouraging, indicating how...
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  • Renewable Energy Directive for 2030

    Europe’s first-ever renewable heating and cooling target

    After night-long negotiations, the European Parliament and Council have reached an agreement on the Renewable Energy Directive for 2030. At long last, discussions that started in November 2016 came to a close in the early morning of 14 June. The...
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  • Silkeborg

    Land secured for Big Solar Graz

    Big Solar Graz has reached a significant milestone by purchasing the land on which to construct a solar field and a seasonal storage system. In mid-June, the project partners told the local press that they had bought 55 hectares in the south of Graz, in the Austrian state of Styria, between...
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  • Photo: Linea Reti e Impianti

    Optimised control strategy for solar district heating in Italy

    Despite its small size, the solar district heating system in Lodi, close to Milan, is one of few in Italy to feed surplus heat into a local network. In March 2017, Linea Reti e Impianti, the public utility based in this city of 45,000, started buying heat produced by a 192 m² solar thermal...
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  • SHW 1

    Rising demand for solar heat in large buildings and industry

    By the end of 2017, the market for solar heating and cooling had grown by 472 GWth, which again made it the largest for solar energy in the world. The one for photovoltaic systems gained 402 GWp to become the second-largest, and 5 GWel was enough for concentrating solar power to rank third...
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  • Graphic: Solar Payback

    A survey of the global market for concentrating collectors

    Concentrating collector technologies are becoming an increasingly popular choice for customers requiring industrial heat or space heating. This year’s Renewables 2018 Global Status Report includes, for the first time, data regarding new installations of concentrating systems....
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