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  • Using solar steam to clean wastewater

    Using solar steam to clean wastewater

    Manufacturers have begun looking for solutions to lower the cost of wastewater disposal. One way for them to reduce the volume of contaminated water is to evaporate water on site by using solar steam. In early 2019, Rioglass Solar, a supplier based in Spain, installed a solar steam system...
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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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  • Clean energy and clean water – a perfect match

    Clean energy and clean water – a perfect match

    Swedish-based Industrial Solar Holding Europe is planning to expand its operations. The company group, which has a wholly owned German subsidiary named Industrial Solar, has issued a rights offering on the private...
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  • The Dutch approach to transforming the heating sector

    The Dutch approach to transforming the heating sector

    How can the Netherlands organise the transformation towards a renewable district heating sector and what role will monopoly suppliers play in this process? Finding answers to these questions was the aim of a workshop organised by the Energie-Nederland and Euroheat & Power trade...
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  • Where you can meet renewable heating specialists over the next six months

    Where you can meet renewable heating specialists over the next six months

    The European Green Deal has been the new EU Commission’s most striking announcement to date. Its aim is to make Europe the first carbon-neutral continent in the world by 2050. The commission announced it would propose a European Climate Act in the first 100 days of its term, which is why...
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  • UK: “Solar heat has fallen out of awareness against PV”

    UK: “Solar heat has fallen out of awareness against PV”

    When the British Renewable Heat Incentive (RHI) started in November 2011, solar thermal specialists all around Europe were enthusiastic about the implementation of a pure performance-based incentive for non-domestic applications. Unfortunately, the programme did not become the expected...
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  • Germany: “It makes sense to invest in renewable heating now”

    Germany: “It makes sense to invest in renewable heating now”

    The bill to implement Germany’s 2030 climate protection package was passed by the country’s parliament on 15 November 2019 and came into effect at the beginning of this year. It contains a wide variety of provisions that should support the implementation of the national climate action plan...
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  • Cities crucial to clean energy transition

    Cities crucial to clean energy transition

    The first edition of the Renewables in Cities Global Status Report was published by REN21, France, at the end of 2019. In all, 380 people, mostly volunteers, contributed to this report, supplying data on the progress of the renewable energy transition across municipalities, including...
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  • Commercial installations in Russia

    Commercial installations in Russia

    Alrosa, a Russian-based group of companies that specialise in mining, processing and selling diamonds, is pleased with the performance of its solar field, which began supplying heat to shift workers’ homes at a factory in Nyurba three years ago. The system is located in the northern Russian...
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  • Source: ZAE Bayern

    In search of cost-effective, advanced PCMs

    Salt hydrates are the most interesting phase change material in the low-temperature range of up to 150 °C. Their volume-related enthalpy at melting is much higher than the enthalpy of paraffins and sugar alcohols (see the chart above) and they are comparatively inexpensive. This is why the...
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  • Chart: Task 58

    Compact thermal energy storage: research in cycles

    Research into compact thermal energy storage is made difficult by the fact that the performance of storage materials depends significantly on their intended purpose. For example, storage tanks that are integrated into space heating systems are made of materials different from those used to...
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