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    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...
    Projektinfo 17/2013

    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...

    Energy performance analysis of complex existing buildings

    Together with academic and professional experts, scientists at Institut für Wohnen und Umwelt GmbH (IWU) Darmstadt have developed a method for the energy performance analysis of non-residential buildings. It has been implemented in software and tested in a field test. TEK-Tool helps energy consultants understand actual consumption, evaluate partial energy consumptions, identify weak spots and calculate potential savings. The approach as per DIN V 18599 has been simplified for the calculation process. This allows for a complex building to be assessed in terms of its energy performance within three working days.  more...

    Deciding well-informed when refurbishing windows

    Whether it is worth replacing a window can be determined using the Uwin software program. This assesses the energy-related properties of existing windows, including their degree of air-tightness and type of installation. The Uglass mobile measurement device has been developed in order to determine the glazing data precisely. It measures the thermal insulation value of insulating glazing in just a few minutes. This enables the expected savings in window and facade refurbishments to be easily and precisely determined. The software is already available on the market and the measurement device is still in the test phase.  more...
    Projektinfo 14/2013

    Science and business park grows efficiently

    If the current trend is extrapolated, the energy requirement of the Berlin-Adlershof science and business park will double by 2020 as a result of relocations and an increase in density. The implementation of a new energy concept is to help the site achieve 30 % savings in primary energy. Central to the concept is the energy-efficient improvement and cross-linking of buildings, systems and processes, the use of waste heat, efficient electricity and heat supply and the introduction of a technical and non-technical energy management system.  more...
    Projektinfo 13/2013

    Thermal heat from pit water

    The coal mining company RAG annually pumps over 100 million cubic metres of water to the surface from a depth of up to 1,000 m to secure the stability of the ground and the safety of drinking water in former mining regions. For one year now, the municipal utility of Bochum has been heating several public buildings with that pit water. The pilot project demonstrates how to use old mines for an eco-friendly heat supply of surrounding buildings.  more...
    Projektinfo 12/2013

    Increased efficiency for power supplies

    Switched-mode power supplies are used in almost every electronic device including television sets, computers and monitors. Their efficiency is 80% to over 90% depending on the build quality. About one third of the power losses are caused by alternating magnetic fields in coils and transformers. Together with industry partners, researchers at the Friedrich-Alexander-Universität Erlangen-Nürnberg looked into ways to improve the energy efficiency of these components. Extrapolated to the total number of units in operation, even small improvements can bring about significant power savings. Reduced thermal loss allows for the construction of smaller and lighter units with less material invested.  more...
    Projektinfo 11/2013

    Low-noise anchoring of offshore wind turbines

    The intention is to develop offshore wind energy in the German parts of the North and Baltic seas in an environmentally compatible manner. An important provision when constructing the foundations is to mitigate the construction noise in order to protect marine mammals. In comparison with currently standard pile driving methods, a newly developed drilling process for foundation piles enables noise-reduced installation. Engineers are developing an ocean-going drilling rig and are devising the subsequent construction sequence.  more...
    Projektinfo 10/2013

    Development of high-efficiency solar cells and modules

    Research institutes, photovoltaic producers, system manufacturers and solar industry suppliers are working together to produce more powerful and durable modules in a more efficient manner. In the SONNE project, companies and researchers are optimising the output and production of modules made of crystalline silicon cells, whereby they are covering the entire production chain and are making the new developments ready for production in a short time. With their developments they want to reduce the costs of solar power by a third.  more...
    Projektinfo 09/2013

    Metro tunnels enable geothermal air-conditioning

    When constructing new underground metro lines it is possible to integrate geothermal plants with few additional costs. That provides an excellent opportunity to use this renewable energy source in cities with densely built underground infrastructures. A test plant is in operation on Metro Line 6 at Stuttgart’s Fasanenhof underground station. Scientists at the University of Stuttgart are investigating the effects that the geothermal activation of the tunnel is having on the subsurface.  more...



25.04.2014 - 26.04.2014

18. Internationale Passivhaustagung
05.05.2014 - 09.05.2014
Indonesien, Jakarta

Netzgekoppelte Photovoltaik in Indonesien
07.05.2014 - 09.05.2014
Bad Staffelstein

24. Symposium Thermische Solarenergie

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Storing wind energy underground
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