Solar Heat for Cities

  • 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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  • 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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  • Winners named in Helsinki Energy Challenge for carbon-neutral district heat

    Winners named in Helsinki Energy Challenge for carbon-neutral district heat

    An expert panel has now picked four winning ideas from the 252 submitted for the Helsinki Energy Challenge, which gave stakeholders in the energy market a chance to put forward their solutions for carbon-neutral district heating in Finland’s capital by 2035. One award went to the HIVE...
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  • New SDH factsheet database goes online

    New SDH factsheet database goes online

    The IEA Solar Heating and Cooling Programme has just launched a database containing a substantial number of fact sheets about solar district heating technologies, best practices and markets. The 29 documents were written by the most experienced SDH researchers and practitioners from China...
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  • In Denmark, large heat pumps take DH market by storm

    In Denmark, large heat pumps take DH market by storm

    United in their drive to get rid of fossil fuel-fired heating, Denmark’s district energy providers spent years putting up a network of solar thermal systems, large ones in particular. But lately, priorities seem to have changed, with the focus now being put on heat pumps instead. Sales of...
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  • “7 MW solar heat plants will be a commodity in Europe in 5 to 10 years”

    “7 MW solar heat plants will be a commodity in Europe in 5 to 10 years”

    Viessmann, a major German provider of climate solutions for living spaces, strengthened its project development team last year, hiring Christian Stadler and four of his ex-colleagues in June 2020, after their former employer, Danish-based Arcon-Sunmark, stopped operation. As part of...
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  • Improving SDH efficiency

    Improving the efficiency of SDH

    Since the end of IEA SHC Task 55 – Large Solar District Heating and Cooling Systems last December, there have been multiple calls for continuing the work of this successful research platform in some fashion. In response, Viktor Unterberger, a senior researcher at the Austrian BEST –...
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  • SDH plant performs well in Swiss winter conditions

    SDH plant performs well in Swiss winter conditions

    A new solar district heating plant in Geneva, Switzerland, is basking in the limelight of Swiss politics, with environmental minister Simonetta Sommaruga personally attending the start-up of the system at the end of February. The 816 m2 solar field consists of special high-vacuum...
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