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  • Photo: Trimmel Wall Architects

    New standard to improve energy performance of historic buildings

    Maintaining the exterior of a historic building while raising energy efficiency is not necessarily a contradiction. The new EN 16883:2017 standard, Conservation of cultural heritage, provides guidance on how to improve the energy performance of historically significant structures....
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  • Photo: BSW Solar

    ESCO model grows in popularity in South Africa

    “Our clients are cash flow positive from day one,” South African company Energy Partners claims on its website. Up until now, it has been offering heat and steam purchase agreements, mainly on coal boilers, to industrial and public customers. “Purchase contracts for solar heat in...
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  • Photo: HRsolar

    Slim all-black collectors: the next generation of solar heating

    In March, Dutch-based HRsolar began manufacturing a completely redesigned collector on a fully automated production line. Called Nero, the black-coloured unit is 40 millimetres thick – as slim as a photovoltaic panel. According to the manufacturer, the aim had been to “reinvent the concept...
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  • Solar building regulations in Kenya face legal challenge

    Solar building regulations in Kenya face legal challenge

    Even after a transition period of more than five years, Kenya’s Solar Water Heating Regulations 2012 continue to be challenged. This May, a property developer filed a lawsuit, questioning their legality. They took effect on 25 November 2017, but their enforcement was...

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  • PV gets 285 times more subsidies as solar thermal

    PV gets 285 times more subsidies as solar thermal

    The Netherlands Enterprise Agency, also known as RVO, which invited applications for its renewable feed-in tariff scheme SDE+ in spring, has approved funding for 22 solar thermal systems totalling 8.4 MWth. In all, EUR 3.6 billion has been awarded to 3,899 applicants following...
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  • Solar heat in 10 Mexico City hospitals

    Solar heat in 10 Mexico City hospitals

    Mexico City has invested Mexican Peso (MXN) 14.7 million – about EUR 672,000 – in bringing solar water heating to 10 public hospitals via PACCM, its Climate Action Programme 2012-2020. The aim is to reduce fuel consumption by 35 % to save MXN 4 million and 446 tonnes of carbon dioxide...
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  • Solar thermal in agri-food industry

    Solar thermal in agri-food industry

    Four industrial sites owned by businesses producing goods for the agri-food sector will be the real test of whether solar process heat can gain a foothold in the industry. The companies are partners to SHIP2FAIR, which was launched in April in Brussels (see photo) and is scheduled to end in...
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  • Source: IBGE/CNI 2015 and Solar Payback

    Brazil´s enormous SHIP potential

    Tens of thousands of companies in Brazil’s industry could be interested in using solar heat, as shown by the chart at the beginning of this news article. Businesses which require large amounts of thermal energy below 400 °C can be found in several sectors, from beverage, chemical and food...
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  • Photo: Jaideep Malaviya

    Successful solar energy bylaw in Bengaluru, India

    Bengaluru Electricity Supply Company, a public utility also known as BESCOM, has been successful in implementing a bylaw to encourage the use of solar energy. Since 2009, 1,234 million m² of collector area had been installed in Bengaluru and had supplied energy equivalent to about 611...
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  • underfloor heating system

    Concrete slabs store thermal energy and heat homes

    Many building owners consider roof-integrated solar systems to be a tried-and-true way of saving as much on their heating bills as they can. A research project called solSPONGEhigh and developed in Austria has shown: When using thermal mass, i.e., the capacity of a building to store heat in...
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