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    News 29.07.2015

    Energy thanks to lunar power

    Researchers are developing a new approach for generating energy from tidal currents. Here they are combining a semi-submerged platform with several small-sized instream turbines. This means that the tidal power plant requires less maintenance than is usually required. However, in order to achieve the highest possible energy yields it requires strong water currents. Canada’s Bay of Fundy has an exceptionally high tidal range exceeding 15 metres. This is where it is planned to build the hydropower plant so that it can provide the first electricity in 2017.  more...
     
    Projektinfo 06/2015

    Stable grid with 100 per cent green electricity

    In a power grid, the energy provided must always be equal to the power demanded. Only then can frequency and voltage remain stable. Ensuring this is the task of grid operators. But when volatile — meaning not arbitrarily adjustable — energy sources are the main sources of electrical energy, grid operators face a challenge.  more...
     

    Testing towers and foundations

    Manufacturers are offering ever larger and more powerful wind turbines for utilising wind power. As the wind turbine sizes increase, the wind and weather take an increasing toil on the structures and turbine components. Hanover University’s Test Center Support Structures opened in 2014 to enable the components used for the tower and foundations to be tested and optimised in advance.  more...
     

    Solar houses scientifically evaluated

    With more than 1,700 buildings realised, solar active houses are no longer a marginal phenomenon. However, what has been lacking until now is a scientific evaluation of this heat supply concept. For this reason, researchers have measured nine solar houses over several heating seasons. Project manager Gerhard Stryi-Hipp has now presented the interim results at the OTTI Symposium on “Thermal Solar Energy”.  more...
     

    Steel beats copper

    The so-called embossing stretch forming process is an established method used in the manufacture of radiators. Researchers have now adapted this process for the production of solar absorbers. Instead of using expensive copper, this method also enables steel and aluminium to be processed in large numbers and with flexible lengths. An adapted channel design compensates for the lower thermal conductivity of steel. This enables them to achieve the same thermal efficiency as conventional absorbers – and also save money.  more...
     

    Standardised feed in of solar heat

    Solar thermal systems are very suitable for retrofitting into existing buildings. However, a lack of standardisation exists when coupling the system to a district heating network. Viessmann and the Technical University of Dresden are therefore developing suggestions for future standardisation. This should help to reduce the planning effort required and save costs through unification of the various circuit variants.  more...
     
    Projektinfo 01/2015

    Efficient production of monocrystalline semiconductors

    A Freiberg-based semiconductor manufacturer has now developed a new process that enables up to nine crystals to be grown simultaneously in parallel. This reduces the specific energy consumption for the production by two thirds. The new technological principle can be applied to growing other semiconductor substrates.  more...
     

    Energy research on course to delivering the energy transition

    The German federal government recently published the National Action Plan on Energy Efficiency. The concept is specifically aimed at winning over all actors in society in achieving greater energy efficiency. A few days later, the German Federal Ministry for Economic Affairs and Energy announced its research funding for the German federal government’s 6th Energy Research Programme. In the BINE interview, Dr Rodoula Tryfonidou from the responsible department in the German Federal Ministry for Economic Affairs and Energy talks about the contribution made by energy research in bringing about the Energiewende – Germany’s energy transition.  more...
     
    News 24.02.2015

    Batteries in the low-voltage grid for more PV energy

    In areas where already a large number of photovoltaic systems are installed, impermissibly high voltages can occur in the power grid on sunny days. It therefore needs to be clarified how the energy generated can be optimally used both technically and economically. One idea is that new charging strategies for batteries can effectively relieve the grid by optimally integrating the energy storage systems.  more...
     

    Identifying risks and minimising them through regulations

    How safe and reliable are photovoltaic installations with lithium-ion storage systems? In order to find out, scientists are investigating different plant systems. The intention is to identify possible weak points – such as during transport and installation – so that they can be taken into account in future standardisation work.  more...
     

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