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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...
     

    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...
     

    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...
     

    Solar thermal power plants

    The annual solar irradiation on the earth provides more than 8,000 times the world’s energy requirements. Mathematically speaking, about 1 % of the surface area of the Sahara Desert is sufficient in order to meet the world’s electricity requirements with solar thermal power plants. A solar thermal power plant was already constructed close to Cairo at the beginning of the 20th century. Using parabolic mirrors, the power plant captured and concentrated solar energy and used it to heat oil for boiling water. This in turn was used to drive steam turbines and produce electricity.  more...
     
    News 11.09.2013

    An island becomes power-independent

    The North Frisian island of Pellworm has been a showcase for energy research since the early 1980s. The largest solar farm in Europe was installed there in 1983. In 1989, wind turbines were added to create Europe’s largest hybrid power plant. Now, the island is due to become power-independent, with an intelligent electricity grid with large-scale storage facilities and a large number of home storage systems.  more...
     

    Online energy storage research portal

    What will tomorrow’s electricity and heat storage systems look like? This question is being answered by the new forschung-energiespeicher.info web portal as of today. It presents projects from the Energy Storage Research Initiative that are concerned with combined wind-hydrogen systems, batteries in the grid and heat storage. The website is aimed at interested citizens, scientists, politicians, journalists and the professional community.  more...
     

    Testing measurement devices for solar thermal power plants

    The demands made on measurement devices for solar thermal power plants are high. Among other things, the devices measure how much solar radiation is reflected on the mirrors and receivers and whether the air is frequently clouded by desert dust. They need to be able to cope with the desert climate and deliver precise data in remote regions – with low maintenance work. For this reason, the German Aerospace Centre (DLR) is now testing measurement devices and methods in a meteorological research station in southern Spain.  more...
     
    Projektinfo 07/2013

    Facade collectors with perspective

    Scientists from the research and industry fields have developed a facade system which combines several functions: integrated evacuated tube collectors generate solar heat at a high temperature level, and provide even, semi-transparent light and protection against the sun for indoor areas without impairing the view. The system is particularly suitable for offices and other functional buildings with a large number of windows. It can also be used as an architectural design element for facades.  more...
     

    Uniform testing of hybrid collectors

    The existing standards for photovoltaic modules are insufficient for hybrid collectors. Therefore researchers are now developing new testing procedures for these so-called PVT collectors, which produce both electricity and heat. The new guidelines are intended to make the operation of the systems and the yield forecasts more secure.  more...
     

    Storing solar energy in the ground

    Solar thermal energy is intended to cover 50 per cent of the heating requirements of a residential area being developed on the site of a former army barracks in Crailsheim-Hirtenwiesen. To ensure that this is possible throughout the year, a seasonal borehole thermal energy storage system has been installed with a volume of 10,000 m3 of water equivalent. This is the most cost-effective version to be produced so far. However, before drilling could commence for the storage system, a specialist team had to search the area for unexploded ordnance.  more...
     

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Events

07.05.2014 - 09.05.2014
Bad Staffelstein

24. Symposium Thermische Solarenergie
13.05.2014 - 14.05.2014
Oldenburg

2. Oldenburger Symposium energy 2050
25.05.2014 - 07.10.2014
Berlin und weitere Städte der Partneruniversitäten

2-Grad-Campus - Forschen für den Klimaschutz

Popular articles

Solar-active facade systems
Facade collectors with perspective
Intergration of regenerative power generators
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Storing heat and cold in a compact and demand-oriented manner
Latent heat storage in buildings
Energy storage for power grids
Storing wind energy underground