Domestic Hot Water and Heating

  • Photo: Sanqiaoneng

    New coating manufacturer in China

    Last December, Shandong-based Sanqiaoneng introduced a new line of absorber plates, which had taken five years to develop. According to the company website, Singaporean investment holding company Rowsley had spent USD 5 million on the design of a selective coating for these metal plates....
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  • Photos: Heat Changers

    Crowdfunding the Heat Changers campaign

    The German Solar Heating Initiative has put together a crowdfunding project to fund a consumer campaign called Heat Changers. Its initiators, Marisol Oropeza and Stefan Abrecht (first and second image from top left), have already brought some well-known supporters on board, including Markus...
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  • Renewable Energy Directive for 2030

    Europe’s first-ever renewable heating and cooling target

    After night-long negotiations, the European Parliament and Council have reached an agreement on the Renewable Energy Directive for 2030. At long last, discussions that started in November 2016 came to a close in the early morning of 14 June. The...
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  • SHW 1

    Rising demand for solar heat in large buildings and industry

    By the end of 2017, the market for solar heating and cooling had grown by 472 GWth, which again made it the largest for solar energy in the world. The one for photovoltaic systems gained 402 GWp to become the second-largest, and 5 GWel was enough for...
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  • Photo: Luca Degiorgis / Degmar

    Green hotel in Italy’s mountains

    Solar thermal performs well even in high-mountain areas during winter season. The installation shown in the photo is proof that combining solar and other renewable technologies, such as biomass boilers and a solar-assisted heat pump, results in a synergy that can be very productive. The...
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  • Graphic: Solar Payback

    A survey of the global market for concentrating collectors

    Concentrating collector technologies are becoming an increasingly popular choice for customers requiring industrial heat or space heating. This year’s Renewables 2018 Global Status Report includes, for the first time, data regarding new installations of concentrating systems....
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  • Source: California Public Utilities Commission

    California Solar Initiative dominated by multi-family houses

    In 2017, the California Solar Initiative (CSI) – Thermal Program supported the installation of 20,000 m² of collector area, a 20 % increase over the prior year. With 10,832 m², or four times the area installed in 2016, multi-family buildings dominated the subsidy landscape for those 12...
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  • Map: lonelyplanet.com

    Energy efficiency funding in Bosnia and Herzegovina

    The Jugoslav Wars of the 1990s slowed down the rate of energy-related retrofits in the residential and public sectors of Bosnia and Herzegovina. Recently, however, the country has seen some improvement in the amount of funding available for clean heating technologies, such as solar thermal...
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  • Logo UNHCR

    Solar showers for displaced people and refugees

    The UN Refugee Agency has begun ordering solar water heaters to improve the sanitary conditions in Ugandan refugee camps. The news ties in neatly with the first conference on Energy for Displaced People: A Global Plan of Action for Sustainable Energy Solutions in Situations of...
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  • Markus Beslmeisl

    Heat pump makes use of low-temperature solar energy for space heating

    With round about four decades in business, the German-Slovak Thermosolar Group is one of the oldest solar thermal manufacturers in Europe. It began producing collectors in 1972 in Slovakia and started offering a special evacuated flat plate collector in 1997. Last November, long-time sales...
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  • Sylvio Podesta

    “Need to include solar in architectural education”

    Brazil ranks fourth on the list of the world’s largest solar thermal markets, but very few installations have been integrated into a facade or roof. Sylvio de Podestá is the architect behind one of the buildings that have roof-integrated collectors. At this hotel in Belo Horizonte, also...
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  • Task 53 1

    Solar cooling increases annual solar fraction

    ng>Solar cooling could be an effective way to increase the annual solar fraction of domestic hot water production and prevent the solar system from overheating in summer. Under the aegis of the IEA Solar Heating & Cooling Programme, researchers from Task 53, New Generation Solar Cooling...
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