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    Minimally invasive refurbishment with a system

    In Frankfurt, two four-storey residential buildings are currently being refurbished. Two minimally invasive renovation concepts are being tested that are based on multifunctional window modules and insulation elements. Both systems are industrially prefabricated and can integrate various building services functions. The primary refurbishment measures can be carried out from outside.  more...
    News 17.11.2015

    Energy-efficient provision of sterilised drinking water

    When heating drinking water, 5 degrees cooler medium temperatures can lower heat losses by up to 13 per cent. Sterility has to be guaranteed, and Legionella occurrence must be avoided. A research project led by the Technical University of Dresden wants to prove this with extensive measurements and sample taking.  more...

    “Rethinking collectors from a construction industry perspective”

    The trend towards zero-energy and energy-plus buildings has also increased the importance of using roofs and facades for the generation of renewable energy. The TABSOLAR research project has resulted in the development of new thermo-active building systems that are suitable for industrial prefabrication and can be used in a wide range of applications.  more...

    “We have to consider renewables as an association”

    New or existing buildings: covering heat demand with renewable energy has become a trend. Generally speaking, solar thermal systems are the ideal choice for hot water supply and heating support. But things have not been easy on the industry. In the BINE interview, Bernhard Weyres-Borchert, president of the Deutschen Gesellschaft für Sonnenenergie (DGS), speaks about chances and constraints of this sophisticated technology.  more...

    Germany’s largest nacelle test rig inaugurated

    Germany’s largest test rig for wind turbine nacelles is now in Bremerhaven. Here, drive trains with up to eight megawatts can be tested. A load transmission system mechanically simulates the wind loads occurring in the field. The Fraunhofer Institute for Wind Energy and Energy System Technology IWES recently commissioned the nacelle test rig.  more...

    “User satisfaction plays a major role”

    User satisfaction plays a major role in office buildings. It affects the social interaction between employees and increases their motivation and productivity. Together with a 24-member team of authors, Professor Andreas Wagner from Karlsruhe Institute of Technology has recently published a technical book on the topic. In the BINE interview, he talks about the factors, costs and potential.  more...
    News 06.10.2015

    Securely controlling dynamic electricity grids

    The construction of power plants that generate electricity from the wind and sun continues apace. In particular at high sea, but also in rural areas, there is still considerable development potential during the next few years amounting to several gigawatts. The load centres, however, are situated in the metropolitan areas in the middle and south of the country. It is therefore important to integrate the locally created surplus capacities in an intelligent manner.  more...
    News 02.10.2015

    Greater efficiency: Generating steam in receivers

    On the Plataforma Solar de Almería in southern Spain, scientists from the German Aerospace Center (DLR) have developed a new way of generating solar steam. In the installation, the steam used for producing electricity is generated directly in the receiver tubes in the parabolic troughs. This therefore eliminates intermediate steps using heat transfer media and also enables higher operating temperatures of up to 550 degrees Celsius. This should therefore enable parabolic trough power plants to produce electricity more efficiently and cheaply.  more...

    World record for both sides-contacted silicon solar cells

    With a new process for backside contacting, researchers at the Fraunhofer Institute for Solar Energy Systems ISE have set a new record for both sides-contacted silicon solar cells. The scientists achieved an efficiency of 25.1 per cent with an ultra-thin, tunnel oxide back contact. This is applied over the entire surface and does not require complicated processing steps for texturing the cell’s rear side.  more...

    Rotor blade, nacelle and foundation put to the test

    Whether on land or in the sea, wind turbines are getting bigger and the towers higher. All components undergo various preliminary tests, in order to ensure that they can withstand the strains that wind and weather place on them. In recent years, large test facilities have become available in Germany, in which complete rotor blades, nacelles, and foundations are tested. On 21 October 2015, centres will present their supply ranges at a workshop for experts.  more...


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