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    News 13.02.2014

    Where renewable power plants pay off

    With the FreeGreenius simulation programme, engineers can calculate which yields can be achieved by a renewable power plant project at a specific location. In addition, the tool also enables them to plan how the installation must be designed and sized in order to feed in the desired amount of electricity into the grid. Designers of solar power plants and wind turbines can therefore gain an initial insight into whether a power plant is viable and under what conditions. The German Aerospace Centre (DLR) offers the software free of charge for downloading.  more...
     

    Tapping foreign markets with business trips

    The two Renewable Energies and Energy Efficiency export initiatives help small- and medium-sized enterprises to open foreign markets. In order to make contact with potential cooperation partners, they are offering diverse business trips to Europe and the rest of the world this year. The service includes an analysis of the specific interests of the companies taking part. Based on this, the German Chambers of Industry and Commerce Abroad (AHKs) are organising individual meetings for the participants with representatives from business, science and administration.  more...
     

    Heat pipes de-ice railway points

    Geothermal heating ensures that railway points also remain working when there is ice and snow. Once installed, they work independently using only geothermal energy and without any additional energy being supplied. After many years of research and testing in pilot rigs, the system has now been approved by the German Federal Railway Authority.  more...
     
    News 31.01.2014

    Laser-based remote diagnosis of rotor blades

    Wind turbine rotor blades and towers vibrate during normal operation and particularly when there are gusty winds. The analysis of these vibrations plays an important role in terms of the turbine development and maintenance. This was previously only possible at selected points directly on the turbines. For this purpose the Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (IOSB) has developed a laser-based process that records vibrations on towers, nacelles and rotor blades during the ongoing operation of the turbines – and from a distance of up to one kilometre.  more...
     
    News 16.01.2014

    More powerful solar cells go into pilot production

    In the SONNE joint project, researchers and companies have cooperatively developed high-performance solar cells and integrated them in glass-glass modules. The process has enabled the module capacity to be increased by more than 20 per cent. In the pilot production, an output of more than 300 watts has been achieved. By way of comparison: modules with 60 cells currently usually have a rated output of between 240 and 260 watts.  more...
     

    Limiting peak temperatures in collectors

    The stagnation temperature of evacuated tube collectors can rise to 300 °C. That places considerable stress on the components. Researchers at the Institute for Solar Energy Research Hamelin (ISFH) have therefore specifically deployed organic media, such as acetone or butane, in a specially developed test rig for heat pipes. This reduces this temperature to 140 °C while maintaining the high efficiency. The use of aluminium heat pipes also dispenses with the need for expensive copper.  more...
     
    Projektinfo 18/2013

    Storing wind energy underground

    Pumped storage power plants have been in use for over a hundred years to balance fluctuating electricity loads and to cover peak loads. The energy transition creates additional storage demand with its fluctuating feed-in of wind and solar power into the grid. New sites, however, are scarce. Whether the large differences in the tunnel heights of abandoned mines are usable or not is currently being investigated by an interdisciplinary team of researchers on the basis of two viable locations.  more...
     

    Sustainable use of deep geothermal energy

    The alpine foreland is experiencing a geothermal energy boom. The region boasts a vast quantity of deep geothermal water. In the Greater Munich area alone, 15 geothermal heat stations and power plants are currently either in operation or under construction. Geoscientists led by the Leibniz Institute for Applied Geophysics (LIAG) have studied the geological and hydraulic conditions of the region and developed a simulation model. This model can now be used to better predict the interplay between power plants, long-term operation and exploration risks of new plans.  more...
     

    Precisely measuring how wind turbines affect the grid

    Every wind turbine that is connected to the grid affects the grid quality. Until now, operators have not known the precise extent to which they do this and instead rely on estimations. In order to make better use of capacities and prevent disruptions, scientists at Helmut Schmidt University in Hamburg have therefore designed a measuring device that determines the effect of wind turbines on the medium-voltage grid. It is planned to produce a measuring device for high-voltage lines by 2016.  more...
     

    Storing solar energy with new materials

    The interdisciplinary NEOTHERM junior research group at Otto von Guericke University in Magdeburg is developing new materials for storing thermal energy. Using new composite materials, the scientists at the Faculty of Process and Systems Engineering (FVST) want to recover and store unused solar thermal energy and waste heat from industry. This energy can be used, for example, for heating domestic hot water or for space heating.  more...
     

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Events

05.05.2014 - 09.05.2014
Indonesien, Jakarta

Netzgekoppelte Photovoltaik in Indonesien
07.05.2014 - 09.05.2014
Bad Staffelstein

24. Symposium Thermische Solarenergie
13.05.2014 - 14.05.2014
Oldenburg

2. Oldenburger Symposium energy 2050

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