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    News 28.04.2016

    Mechanical mass production of rotor blades

    The rotor blades of wind turbines are still mostly made by hand. This is due to the low piece numbers involved. So how would it be possible to produce them faster, cheaper and with a greater degree of precision? Automated production is now possible in the BladeMaker factory in Bremerhaven. Eight process steps are combined into a single step. The production facility has now been inaugurated.  more...
     

    BINE interview with Professor Dr. Siegfried Heier

    Further developments of converter technology will be necessary for wind turbines to support any grid improvements. Decentralised coupling and decoupling of power ought to be possible in the future high-voltage direct current (HVDC) electric power transmission system. In this BINE interview, Professor Dr Siegfried Heier lists future focal points of technological development in the wind energy sector.  more...
     
    News 04.04.2016

    Energy storage systems in 2030

    What role will functional storage systems play in the energy supply system of the future? Which system infrastructure can economically secure a reliable energy supply in 2030? And what measures must the government take so that this system infrastructure can prevail on the market? Scientists at the Research Center for Energy Economics (FfE) are trying to get to the bottom of these questions with an ongoing study. The results are now available.  more...
     

    Energy-efficient use of university buildings

    Using the Ludwig Maximilian University of Munich as an example, researchers want to show how efficiency improvements can pave the way for a climate-neutral university campus. In the project HoEff-CIM, the buildings are reproduced and evaluated in a model with the aim of developing appropriate refurbishment strategies and an energy management system for building operation.  more...
     

    Stadtwerke Augsburg testing superconducting fault current limiter

    The ASSIST project shows how decentralised feed-in systems can be safely integrated into a medium-voltage network. Since 15 March, a superconducting fault current limiter ensures that the electricity fed from a cogeneration engine test rig into the electricity grid belonging to Stadtwerke Augsburg municipal utility company is protected against short circuits. Last week, Thomas Janetscheck from Stadtwerke Augsburg presented the system at the ZIEHL V superconductor conference in Munich.  more...
     

    Wind turbines are becoming quieter

    Wind turbines are not allowed to disturb neighbouring residential buildings through the noise that they emit. Wind turbines therefore have to be kept at a distance from settlements. To further reduce and better predict noise emissions, the University of Siegen has now launched a research project. In this project, the scientists want to modify the trailing edges of the rotor blades. They also want to develop better sound forecasts for entire wind farms. Quieter wind turbines would enable more land to become available for wind power generation.  more...
     

    TU Darmstadt opens research factory

    Last week, the ETA model factory officially opened its doors. Here, scientists at the Technical University (TU) Darmstadt are researching under real conditions and at full scale how industry can use energy more efficiently by linking all building and production components. By considering the entire system – consisting of machines, energy storage systems, building technology and the building envelope – the intention is to reduce the primary energy requirement in production by 40 per cent.  more...
     

    Transmitting more electricity in the decentralised grid

    There is a tolerance range for grid voltage that grid operators must comply with. Power supply may collapse if the voltage drops below the lower limit. If it exceeds that limit, equipment can be damaged. More feed-in leads to a higher voltage if there are no consumers for this energy. Especially in rural areas, this may be a problem due to the large number of decentralised systems and sparse population.  more...
     
    News 19.02.2016

    A second life for car batteries

    The demands that drivers place on electric vehicles are high indeed: both range and performance have to be sufficient. In addition, batteries are subject to a steady decline of capacity. As performance and capacity deteriorate, a new battery is needed. Retired units are still suitable for other purposes, for example, for raising the self-consumption of solar power systems or supporting the grid.  more...
     
    News 09.02.2016

    Record: solar cell reaches efficiency of 22 per cent

    Recently, photovoltaic researchers presented the interim results of their project HELENE. The researchers achieved a new efficiency record of 22 per cent for industrial monocrystalline PERC solar cells (Passivated Emitter and Rear Cell). In doing so, they surpassed their previous record of 21.7 per cent, set in July 2015. The newly developed solar module technology is soon to be transferred into industrial production. The target is to generate photovoltaic power at lower costs through higher efficiencies and lower production costs.  more...
     

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