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    Energy transition needs water electrolysis on the gigawatt scale

    The generation of hydrogen by means of water electrolysis makes it possible to store renewably generated electricity. In a new study, experts assume that by 2050 Germany will require an installed plant capacity in the three-digit gigawatt range in order to achieve the German government's climate protection goals.  more...
     

    New Energy Research Programme published

    The German cabinet has passed the new, 7th “Innovations for Energy Transition” Energy Research Programme. The programme replaces its predecessor from 2011. Content-wise, the programme builds on the successes of recent years, sets new courses and defines focal points for research funding and innovation policy in the energy sector. For the years 2018-2022, the German Government is budgeting 6.4 billion euros for energy research.  more...
     
    Projektinfo 08/2018

    Testing low-noise rotor blades in the wind tunnel

    The expected noise emissions and the resulting necessary distance to residential buildings are of great importance in the approval of wind farms. In order to reduce these emissions, scientists have designed a powerful rotor blade profile that is as low-noise as it is aerodynamically efficient and have tested the corresponding specimens in wind tunnels. These specimens were combined with passive reduction technologies on the trailing edge and modified blade tips. During the experiment, subject to the operating conditions, noise reductions of up to eight decibels were achieved.  more...
     

    Superconducting generator on the test stand

    Compact design, low tower head mass and good transportability: The high-temperature superconducting generator, which was developed in the EcoSwing research project, is to be used in the next generation of multi-megawatt turbines. The practical feasibility of the concept is being verified in a test campaign on Fraunhofer IWES’ nacelle test rig and in a follow-up field test in a two-blade system in Denmark.  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...
     
    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...
     
    News 21.03.2018

    Effect of wind farms on flight safety

    The approval of new wind turbines in the vicinity of radar or navigation systems in air traffic often causes conflicts, which sometimes end in court. It is undisputed that wind turbines can influence the signals emitted by radar systems and omnidirectional radio range beacons. So far, there has been a lack of scientifically valid, reproducible investigations on the actual extent. Together with their partners, the Physikalisch-Technische Bundesanstalt has developed a new measurement method and numerical simulation methods and has now published first results.  more...
     

    The wind optimises the rotor blade

    With increasing blade lengths, the aerodynamic vibration loads on rotor blades also increase. Conventional construction and control concepts are also increasingly reaching their limits. One possible solution is rotor blades with bending-torsion coupling. In strong winds, they not only bend but also twist axially. Such a demonstrator rotor blade is currently on the test stand. Once the measurements are completed, identical units will be installed on three research wind turbines.  more...
     
    News 15.02.2018

    Testing new foundations for offshore wind turbines

    Until now, most support structures for offshore wind turbines rest on piles that have been driven deep into the sand. This construction method causes noise and high technical complexity. An alternative to this are suction buckets. These are steel cylinders open at the bottom and closed at the top, which externally resemble inverted buckets and are sucked into the ground by artificial negative pressure inside. Large-scale tests are currently underway at Testzentrum Tragstrukturen in Hanover in order to optimise the installation of the bodies and investigate possible compressive and tensile loads.  more...
     

    Virtual further development of system technology

    A current challenge for the wind industry is to counter the economic pressures from the electricity market with innovative concepts. However, the route that needs to be taken until new turbines and components reach market maturity is long. In order to save time and expensive phases on the test rig, many investigations can be simulated in advance on the computer. The new WindMUSE simulation environment is multidisciplinary, integrates existing submodels using a common language and enables real-time testing. The aim is to depict wind turbines with a precision comparable to that customary in the aviation industry.  more...
     

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