District Heating

  • Low-temperature heat networks key to positive energy districts

    Low-temperature heat networks key to positive energy districts

    In Europe, positive energy districts are still in their early stages. But initial pilot projects have shown that low-temperature district heating grids play a central role in the design of these smart districts. So far, however, there has been little policy support for PEDs, noted the...
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  • “We have an increasing number of new large projects in the pipeline”

    “We have an increasing number of new large projects in the pipeline”

    The Finnish turnkey solar heat system provider Savosolar held an extraordinary general shareholder meeting on 1 October to discuss rights issues of approximately EUR 5.4 to 6.4 million with three warrant programmes. The assembly authorised  Savosolar’s Board of Directors to decide on...
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  • China’s future role in the IEA SHC Programme

    China’s future role in the IEA SHC Programme

    The Chinese solar thermal market shows a varied picture of demand. While subsectors such as solar space heating are booming, total market volume continues to decline. Solarthermalworld.org spoke with two professors at the China Academy of Building Research, He Tao (see above) and...
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  • Skopje’s Green City Action Plan favours district heating

    Skopje’s Green City Action Plan favours district heating

    Many times during winter, Skopje in North Macedonia holds the unfortunate record of being the capital with the worst air quality in Europe. One reason for this is that some of the city’s public buildings – even hospitals and schools – burn heavy fuel oil to provide hot water and space...
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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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  • SolarThermal+ project sets new standard for green tourism in China

    SolarThermal+ project sets new standard for green tourism in China

    One year after the ground-breaking ceremony in May 2020, construction on the all-weather eco-tourism resort Water World in Handan, Hebei, northern China, is in full swing. Photos posted to weixin.qq.com on 19 April reveal a huge construction site bustling with activity (see photo...
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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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  • Germany’s solar heat success story in 2020 and beyond

    Germany’s solar heat success story in 2020 and beyond

    In 2020, the German market for solar heat grew by 26 % – more than any other major solar thermal market around the globe, according to the new Solar Heat Worldwide 2021 report (see chart above). Speaking at an IEA SHC Solar Academy in June, Harald Drück, a researcher at German University of...
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  • IEA Net Zero by 2050 Roadmap: 400 milestones but very few for solar thermal

    IEA Net Zero by 2050 Roadmap: 400 milestones but very few for solar thermal

    At an online press conference in May, IEA Executive Director Dr Fatih Birol made some surprisingly forceful statements about the global net-zero emission targets for 2050 – statements that have since been widely quoted in the media. “This is not a race between nations but a race against...
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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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