Policy, Technology Trends, Heat Storage

  • Online database on advanced PCMs

    Compared to water, phase change materials (PCMs) offer more capacity to store heat in tanks. As a consequence, researchers in all corners of the world have been developing new materials and their properties. To ensure the employment of a shared methodology and the use of equivalent terms to...
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  • “Excellent material for sorption-based solar energy storage”

    Microporous hydrophilic substances such as zeolites are recognised as promising materials for very efficient energy storage. Solar thermal systems are used to dry the material and store all of the thermal energy inside without losses until water is returned into the structure to release...
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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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  • Sector coupling still at an early stage

    ‘Sector coupling’ has become one of the most well-known terms to describe the transformation of energy markets. It had originally been created for models that use surplus renewables, such as wind and solar electricity, to provide heat and power new means of transport. International...
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  • Global electricity demand for air conditioning to triple by 2050

    “Growing demand for air conditioners is one of the most critical blind spots in today’s energy debate,” Fatih Birol, Executive Director of the IEA, said as he presented the findings of The Future of Cooling report in May. The chart shows that, in the baseline scenario, cooling is projected...
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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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  • SHC2017_1

    SHC 2017: Largest experts’ meeting on integrated solar heating and cooling

    500 experts from more than 50 countries attended the 5th International Conference on Solar Heating and Cooling (SHC) in Abu Dhabi, UAE, from 30 October to 2 November 2017. It was the first time that this biennial conference by the IEA’s Solar Heating and Cooling Programme had been organised...
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  • Videira Team

    Portugal: 35 Years’ Solar Storage Tank Production

    Videira, a family-owned storage tank manufacturer from Portugal, is celebrating its 35th anniversary this year. In 1982, José Oliveira Rocha (sitting) and three of his five children (back) established a small business in Paredes in northern Portugal. In the beginning, it was only him, his...
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  • EU Renewables Directive Revision Could Give New Impetus to Solar Thermal

    The European Parliament is planning to vote on a revised Renewable Energy Directive next February. About 1,300 amendments had been submitted until July 2017 related to the first draft of the revised directive from November 2016 (see attached document). The amendments are currently discussed...
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