Germany

  • IEA SHC Award 2022 recognises outstanding social housing projects

    IEA SHC Award 2022 recognises outstanding social housing projects

    The IEA SHC Solar Award 2022 will recognise an organisation or individual that implemented a solar heating or cooling project in the last five years to cut energy consumption and costs in social housing. In order to win, the nominees will have to demonstrate that the use of solar thermal in...
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  • Molten salt: suitable heat-transfer fluid for concentrating collector fields

    Molten salt: suitable heat-transfer fluid for concentrating collector fields

    In a parabolic trough collector demo plant run by the German Aerospace Center (DLR) in Évora, Portugal, molten salt is used as a heat-transfer fluid instead of thermal oil. The advantage of molten salt is its stability at higher temperatures. Whereas thermal oil cracks at above 400 °C,...
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  • Between three and eight million heat pumps in 2030

    Between three and eight million heat pumps in 2030

    The German heat pump industry expects high growth rates in the next years. The latest heat transition reports predict between three and eight million heat pumps in operation in German buildings by 2030 to fulfil the climate goals (see chart below). By the end of 2020, a total of 1.4 million...
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  • Spain: Solar district heating in den Startlöchern

    Spain: Solar district heating on the starting blocks

    The Spanish solar district heating market is still in its infancy. Among the 500 district heating networks in operation across the country totalling more than 1.6 GWth only seven use solar heat, according to the Association of District Heating and Cooling Companies (ADHAC)....
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  • #EnergyEfficientLighting: Dynamic research group publishes 16 reports

    #EnergyEfficientLighting: Dynamic research group publishes 16 reports

    The success of highly energy-efficient lighting designs hinges on more than technological ingenuity. Other key make-or-break factors are smart control strategies and the interaction of lighting users with the built environment. Under the auspices of the IEA Solar Heating and Cooling...
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  • Launch of Solar Thermal Yearbook 2021

    Launch of Solar Thermal Yearbook 2021

    Solar thermal energy is indispensable for the energy transition, but just as indispensable is informing the interested public about the state of the art and the wide range of possible solar heat applications. This is the motivation of the editorial team for launching the first English...
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  • Standardised yield assessments for industrial solar heat plants

    Standardised yield assessments for industrial solar heat plants

    The yield of solar process heat systems as simulated during feasibility studies has a decisive influence on the profitability of the respective investment. Therefore, simulation tools play an important role in the project development phase. Currently, however, project developers use a large...
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  • Germany supports solar thermal in energy systems with cogeneration

    Germany supports solar thermal in energy systems with cogeneration

    The use of solar district heating is rapidly gaining momentum in Germany. One reason is that the first projects which have received state support under the Innovative Combined Heat and Power Programme are close to completion. An example of a local energy supplier that has profited from this...
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  • “German SDH market could be bigger, if there was enough space”

    “German SDH market could be bigger, if there was enough space”

    Under the leadership of Christoph Bühler, Ritter XL, a division of Germany’s Ritter Energie company, has risen to become the market leader for solar district heating (SDH) in Germany. His team successfully bid for seven of the last 10 SDH plants exceeding 1,000 m2 to be put out...
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  • Growing interest in concentrating solar heat in central Europe

    Growing interest in concentrating solar heat in central Europe

    Concentrating collectors that provide heat or steam for large energy consumers are still far and few between. In 2020, 35 projects with a total aperture area of 16,300 m2 (11 MWth) were put up around the globe, with the most capacity added in China and Turkey, However...
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  • Large prefab SDH collectors: design and yields

    Large prefab SDH collectors: design and yields

    Collector size is key when designing solar thermal systems for use in district heating and industry. Roughly speaking, the larger the individual collectors, the easier it will be to install a system by crane and configure it to provide temperatures outside the usual range. In all, nine...
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