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    Developing multifunctional façade elements

    As the outermost layer of the building envelope, the façade performs numerous functions. They are to be intelligently combined to create a system that permits the application of cost-effective, multifunctional façade systems. To do this, scientists are developing a façade element with integrated organic photovoltaics, textile sun protection, a sustainable insulating material and the sensors necessary for control. The next step is to test the elements on the south façade of a multi-storey residential building.  more...
     
    News 05.06.2018

    Testing climate-neutral districts in the real-world laboratory

    How can energy efficiency measures and the utilisation of renewable energy sources enable districts to get by with virtually no fossil fuel? How can smart networking of power, heat and mobility be achieved? Scientists and other stakeholders are investigating these questions in six flagship projects. Initial results and local challenges were outlined by the research teams in a panel discussion at the Berliner Energietage conference.  more...
     

    Smart Green Tower becomes an energy producer

    The Smart Green Tower is being built in the city of Freiburg. The 51-metre-high building will provide living, residential and working space. Depending on the solar radiation, a building envelope made of photovoltaic modules generates more energy via the photovoltaic system than can be consumed directly. In order to utilise the surplus electricity, the designers are using a flexible internal energy storage system with lithium-ion batteries.  more...
     

    Solar Decathlon competitions compact

    The Solar Decathlon student competition challenges the participating teams to develop completely solar-powered houses. More than 250 buildings have already been built in the 13 competitions that have taken place to date. A considerable amount of investigative spirit has gone into designing all of them, they are comparable and well documented. A freely accessible online database now provides a comprehensive overview and the framework for systematically evaluating the innovations and results.  more...
     

    Adhesion rather than soldering of electrical contacts

    To connect individual high-efficiency solar cells, it is now possible to adhere rather than solder these on an industrial scale. The technology is market-ready. The method is the result of joint research conducted between the Fraunhofer Institute for Solar Energy Systems (ISE) and system manufacturer teamtechnik. Innovative solar cells with temperature-sensitive layers can thus now be gently connected. Even with narrow cell thicknesses below 160 micrometers, the lower thermo-mechanical stress demonstrates crucial benefits.  more...
     
    News 26.04.2018

    New administrative facility with energy-plus concept

    In 2013, the City of Freiburg held a competition for the construction of a new central administrative facility, including town hall, to consolidate its various agencies spread across the municipal area. The objective being two-fold: to produce an outstanding architectural design and to maximise energy efficiency. Monitoring measures put into effect upon commissioning are intended to reveal whether operation of the new energy-plus building fulfils the promise evident at the planning stage.  more...
     
    News 05.04.2018

    Storing power and heat in the district

    Sustainable energy provision is to be developed for the urban district of Rüsdorfer Kamp in Heide. The QUARREE100 research project is investigating how the district could be fully supplied with local or regional renewable energy sources. One goal is to integrate the regionally generated wind power into the regional energy system in an economically efficient and system-serving way.  more...
     

    Solar cell uses front and back

    So-called bifacial solar cells can convert incident light into electrical current both on their fronts and backs. They are up to 30 per cent more powerful than conventional monofacial cells that use only their fronts. The hitherto very complicated production of such double-sided solar cells has now been made simpler and less expensive by means of a newly developed doping process.  more...
     

    Modern living in an historic urban district

    The Margaretenau residential district in Regensburg is being modernised to improve its energy efficiency. The designers are developing a solar-active and -adaptive exterior render system as a replacement for conventional thermal insulation for the facades. This should increase the solar yields and improve the thermal comfort inside the buildings. The energy supply will be provided by a new and efficient hybrid heating system consisting of cogeneration and heat pump technology.  more...
     
    Projektinfo 13/2017

    New method comes closer to the ideal solar cell

    The goal of developers and customers is to achieve solar cells that come as close as possible to the maximally achievable efficiency. And it should also be possible to produce these cells even more cost-effectively. Researchers at the Fraunhofer Institute for Solar Energy Systems (ISE) have been investigating which methods and processes can be used to increase cell efficiency and reduce internal losses. In accordance with these requirements, they have developed a monocrystalline silicon solar cell that is contacted on both sides. This achieves an efficiency of 25.7%.  more...
     

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Events

28.08.2018 - 29.08.2018
Frankfurt

11. ENERGIE EFFIZIENZ MESSE
23.10.2018 - 24.10.2018
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50. Kraftwerkstechnisches Kolloquium
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19. Forum Neue Energiewelt 2018

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