News

  • “Solar thermal cooling reduces the strain on the power grid”

    “Solar thermal cooling reduces the strain on the power grid”

    Global IEA Solar Heating and Cooling research platform Task 65, called Solar Cooling for the Sunbelt Regions, aims to provide countries in Africa, Asia and the MENA region with specifications and know-how of solar thermal and PV air conditioning. To achieve this, researchers and...
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  • Online workshop about solar-powered industrial water management

    Online workshop about solar-powered industrial water management

    Using solar energy to decontaminate and disinfect industrial water could save both GHG emissions and water. To this end, the Water Solar Treatment research group of Plataforma Solar de Almería (PSA) in the south of Spain has specialised in designing new types of solar-powered water...
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  • 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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  • TrustEE standardises project assessment and financing

    TrustEE standardises project assessment and financing

    Any company that wants to be successful in selling industrial solar heat solutions to end users and investors needs standardised project assessment and advanced risk management. To develop such processes is one of the main objectives of the subgroup Guideline to Market of the...
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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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  • Improved design for giga-size pit heat storage

    Improved design for giga-size pit heat storage

    Denmark’s cost-effective, tried-and-true seasonal pit heat storage concept needs to be modified if it is to be implemented across Europe, since district heat temperatures are higher and groundwater may be only 5 to 15 metres from the surface. The members of research platform Task 55 (...
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  • “Use mandates to boost established markets, but not to build up new once”

    “Use mandates to boost established markets, but not to build up new ones”

    Ten years after Hawaii’s Solar Hot Water Mandate was issued the Hawaii Solar Energy Association won a lawsuit to weed out a fatal flaw of the regulation that required all new single-family homes to install a solar water heater since 2010 unless one of four variances can be met. The flaw was...
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  • Three SDH plants under development in Croatia

    Three SDH plants under development in Croatia

    District heating operators in Croatia have shown great interest in solar energy. Under the auspices of an EU-funded two-and-a-half-year project called KeepWarm, three feasibility studies on solar district heating (DH) ventures are currently underway in the country, whereas endeavours in the...
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  • Solar-heated multi-family buildings gain popularity in Germany

    Solar-heated multi-family buildings gain popularity in Germany

    Many new largely solar-heated houses in Germany are multi-family buildings, and their number is growing, according to Sonnenhaus-Institut (Solar House Institute), an alliance of about 300 architects, planners, building companies and system integrators that specialise in the design or...
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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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  • Benefits of 4G and 5G heat networks

    Benefits of 4G and 5G heat networks

    Fourth-generation heat networks, which operate at about 60 °C, reduce heat losses, extend pipe life and create the best conditions for clean energy use. The photo shows one of these grids, which has been running in a neighbourhood in Villach, southern Austria, since the beginning of 2018....
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  • Guidelines on how to assess renewable district heat potential

    Guidelines on how to assess renewable district heat potential

    As district heat will be one of the key pillars of a decarbonised heat sector, authorities, utilities and energy service providers are eager to explore the opportunities that local sources of clean energy could provide for the DH market. To this end, a consortium led by consultancy Ambiente...
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