Green Buildings

  • Solar-heated multi-family buildings gain popularity in Germany

    Solar-heated multi-family buildings gain popularity in Germany

    Many new largely solar-heated houses in Germany are multi-family buildings, and their number is growing, according to Sonnenhaus-Institut (Solar House Institute), an alliance of about 300 architects, planners, building companies and system integrators that specialise in the design or...
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  • Solar houses: above 95 % solar fraction is possible

    Solar houses: above 95 % solar fraction is possible

    Between 2014 and 2019, the Austrian Climate and Energy Fund supported the construction of over 100 solar-heated houses, 19 of which were monitored following completion. Regardless of whether it was a lightweight or a brick house that was put up, the rooftop or facade collector system...
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  • Grants for 600,000 renewable heating systems in England

    Grants for 600,000 renewable heating systems in England

    In early August, the UK government announced a GBP 2 billion (USD 2.61 billion) Green Homes Grant scheme that will fund up to two-thirds of the cost of home improvements, including solar thermal systems, heat pumps and insulation, for over 600,000 residential buildings. From the end of...
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  • Optimising life-cycle costs in the construction industry

    Optimising life-cycle costs in the construction industry

    A facade to capture solar energy is a particularly appealing option if a solar thermal system is to be integrated into an office or a multi-family building, as the available roof area is often relatively small compared to how much floor space needs to be heated or cooled. An international...
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  • Hybrid solutions maximise solar yield per area

    Hybrid solutions maximise solar yield per area

    A record 840 people registered for the PVT solutions for buildings and industry webinar in order to learn more about the wide range of applications in which hybrid PV-Thermal systems can be used. This two-in-one technology offers attractive payback periods whenever a constant amount of heat...
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  • Solar Energy Buildings to make cities fit for the future

    Solar Energy Buildings to make cities fit for the future

    Buildings account for around 40 % of the world’s primary energy consumption. Hence, they are the number one cause of resource consumption on earth. Because not every urban neighbourhood all over the world can be connected to district heating, local governments and building owners may need...
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  • Role of life-cycle costs in NZEB projects

    Role of life-cycle costs in NZEB projects

    How much does it cost to construct, run and maintain a Nearly Zero Energy Building? What energy efficiency and renewable options could work best for a given project? Answering these and other questions is the aim of ...
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  • Touring exhibition shows retrofits in 11 historic buildings

    Touring exhibition shows retrofits in 11 historic buildings

    In October, Vienna became the first venue for the new touring exhibition Historic Buildings Energy Retrofit Atlas. At the European Congress on the Use, Management and Conservation of Buildings of Historical Value held in Austria’s capital, 12 roll-up banners showed the positive impact that...
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  • Photo: Chr. Dahle, Aventa

    Webinar: How to use facades to generate solar energy

    The focus of the next IEA SHC Solar Academy webinar will be on the assessment, onsite monitoring and simulation of building-integrated solar systems. On 18 September, three experts who work for Task 56, Building Integrated Solar Envelope Systems for HVAC and Lighting, will share...
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  • Solar-heated homes promoted on Austrian TV

    Solar-heated homes promoted on Austrian TV

    National association Austria Solar has managed to bring solar-heated houses into the mainstream. On 9 November, Austria Solar’s Managing Director Roger Hackstock was interviewed for konkret, a consumer programme on ORF 2, one of Austria’s public TV channels. His loud and clear...
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  • Entirely solar-heated blocks of flats in Switzerland

    Entirely solar-heated blocks of flats in Switzerland

    Switzerland’s solar thermal market showed a slight increase last year, thanks to growing demand for solar hot water systems in multi-family houses. According to a press release from Switzerland’s solar industry association Swissolar on 11 July, glazed and unglazed collector area...

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  • Photo: ISFH, IEA SHC Task 60

    PVT increasingly used for net zero energy buildings

    A rising number of manufacturers and suppliers in Europe are offering combined photovoltaic and solar thermal systems, also known as PVT units. This was one of the main messages of the International Workshop on the Status of PVT Systems, organised by Fraunhofer ISE on 16 May 2018...
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