Domestic Hot Water and Heating

  • High expectations in Brazil despite Covid-19 worries

    High expectations in Brazil despite Covid-19 worries

    The solar thermal market in Brazil grew by about 6 % in 2019, adding 1.32 million m2 (0.93 GWth) despite a turbulent economy. The surge came in part due to new commercial customers that require large quantities of hot water and followed four years of steadily declining...
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  • EU to have 35 million building units renovated by 2030

    EU to have 35 million building units renovated by 2030

    This October saw the unfolding of two landmark events that will have a major impact on renewable energy markets for decades to come. On 14 October, the Renovation Wave communication was published, its aim being to “at least double the annual energy renovation rate of residential and non-...
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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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  • 50 new solar hot water systems at Turkish prisons in three years

    50 new solar hot water systems at Turkish prisons in three years

    Turkey’s regulations on installing solar energy equipment in buildings with over 1,000 m2 of floor area has resulted in a growing number of centralised solar hot water systems in prisons over the last years. The above photo shows one of those installations, a 3,363 m2 solar hot...
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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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  • Region with high solar ambitions joins IEA SHC

    Region with high solar ambitions joins IEA SHC

    One of the IEA Solar Heating and Cooling Programme’s new sponsors is SACREEE, the Centre for Renewable Energy and Energy Efficiency, set up by the Southern African Development Community (SADC), an intergovernmental organisation. SADC represents a dynamically developing solar thermal region...
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  • Export champions from Greece offer good value for money

    Export champions from Greece offer good value for money

    The Greek solar thermal industry is an export champion: The total collector area sold to customers abroad tripled from 200,000 m2 to 600,000 m2 in only 10 years (see chart). Greek manufacturers took advantage of opportunities around the world while demand for their...
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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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  • GGF funds 1,400 solar thermal systems in 10 years

    GGF funds 1,400 solar thermal systems in 10 years

    The Luxembourg-based Green for Growth Fund (GGF) has recently entered its 11th year in operation. A pioneering public-private partnership, it was launched by the European Investment Bank and the German KfW bank in December 2009 and supports energy efficiency and renewable energy projects...
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  • Solar requirement dropped from building regulations in Spain

    Solar requirement dropped from building regulations in Spain

    During the last 8 years, the Spanish market for solar water heating was fairly stable, with capacity additions ranging between 200,000 and 250,000 m2 annually (see chart). In 2019, the total was 207,000 m2 (145 WMth), 1 % above the prior year. Much of...
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  • Global perspective on solar heating and cooling

    Global perspective on solar heating and cooling

    Solar thermal is increasingly used to provide district heat around the world. In 2019, the market grew by about 170 % in Denmark but also expanded in other countries, such as China and Germany, mainly because the technology became more cost-competitive. Another factor driving growth was...
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