Solar Heat for Cities

  • 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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  • “Reducing the level of harmful air pollutants is vital”

    “Reducing the level of harmful air pollutants is vital”

    Be it the Western Balkans, Mongolia or Kazakhstan, Greg Gebrail is there to offer technical and policy support for solar district heating. As Principal District Energy Specialist at the London-based European Bank for Reconstruction and Development (EBRD), he is a member of the Sustainable...
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  • 25-year heat supply contract for 4 MW SDH plant

    25-year heat supply contract for 4 MW SDH plant

    Supported by a community financing model, southern Austrian solar heat specialists Unser Kraftwerk and Greenonetec have joined forces to build a 4 MW solar district heating plant in nearby Friesach by summer. While Greenonetec is producing the 5,750 m2 of large flat plate...
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  • Quick Check BIOSOL: New tool helps utilities make the right choices

    Quick Check BIOSOL: New tool helps utilities make the right choices

    As early as November 2020, national association Austria Solar put a new decision-making tool called Quick Check BIOSOL on its website. At a German-language webinar following the upload, Austria Solar’s Managing Director Roger Hackstock then explained what the tool does and how it works. In...
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  • Construction of largest Swedish SDH plant with parabolics

    Construction of largest Swedish SDH plant with parabolics

    In November, construction began on what will be Sweden’s largest district heating system based on solar concentrating technology. This 3,000 m2 field of parabolic trough collectors (1.5 MWth) is part of a EUR 1.6 million demonstration project that will receive 48 % of...
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  • Surface synergies and conflicts in smart cities

    Surface synergies and conflicts in smart cities

    Surface area is an important but limited resource in cities that aim to become climate neutral. It can be used to, for example, generate heat or electricity via active solar systems, improve air quality via greening, or provide cooling thanks to highly reflective and emissive materials....

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