In Germany, technologies for capturing and storing carbon dioxide have so far failed to gain acceptance. This sixty social scientists and technicians attending the "Acceptance Research on CCS" workshop held at the Wuppertal Institute were in agreement in this respect. One aspect that has not failed, however, is the research on how acceptance develops among the population. Many large-scale technologies ranging from wind farms to high-voltage grids are faced with the need to find acceptance ? not least through participation.  more...

Even in a remote village far from the public electricity grid there is modern everyday life with radios, washing machines and electrical appliances. In energy terms this is a ?standalone? system. The electricity is supplied by a hybrid system that combines various renewable energy sources and an additional diesel generator, and is buffered with a battery system. An information and control network with a new operating system keeps the stand-alone grid (mini-grid) stable.  more...

The Faculty of Supply Engineering at Ostfalia University of Applied Sciences has installed a renewable energy park at its Wolfenbüttel campus. A redox flow battery weighing 5,000 kg has now been added to this energy park. With this system, which is only the second of its kind in Germany, a further storage technology is now available in this "Smart Grid Test Facility".  more...

Superconducting fault current limiters can contribute significantly to increasing the safety, availability and reliability of electrical systems in power stations. According to experts, they also have an important role to play in expanding the power grid. In 2009 at the Boxberg power station, a superconducting fault current limiter was used for the first time to protect its own power supply. Soon a next-generation superconductor system with optimized characteristics will be tested at the same site.  more...

Copper cables only conduct electricity under resistance, meaning the cable heats up and energy is lost. In contrast, superconductors conduct electricity without loss. Their use in cable and generator projects thus increases the efficiency of the electricity supply infrastructure. With this in mind, the German Federal Ministry of Economics and Technology is promoting the cost-effective production of superconductive band conductors at the manufacturer Zenergy Power with funding of 3.5 million euros.  more...

The meter reader never rings the doorbell anymore. The Smart Meter sends the consumption data to the office by e-mail in real time. This intelligent meter is the starting point for the interactive network. The new standardised devices can do far more than calculate consumption totals. They act as control and information nodes. They allow the latest consumption data to be used to control machinery and electricity generation systems according to the supply of electricity and the grid load. They are essential if variable tariffs are to be used.  more...

In future, electricity grids will have to transport large quantities of electricity from renewable energy sources fed centrally and decentrally. Plus, we need greater reserves, storage facilities and flexibility in the electricity market due to the fluctuating supply. In the "Modellstadt Mannheim" project, a virtual energy marketplace is being developed for energy generators, consumers and grid operators. Customers can see the source and price of their electricity and influence them directly via the timing and extent of their consumption and the delivery from their own generation systems. This approach also includes gas, water and district heating.  more...

There are already more than 100 regions and many rural communities that are promoting sustainable development based on renewable energies. After developing individual concepts and strategies, the lengthy and often very complex implementation begins. A research project organised by the German Federal Ministry for the Environment has been supporting these regions in conceptual and technical terms since 2007. This project is being conducted by the deENet competence network and the University of Kassel, and is being advised by the German Federal Environment Agency. In a second project phase, it is planned to create a national network by 2013.  more...

Power plants with CO₂ reduction technologies form an integral part of the Federal government?s energy research programme. This has been testified by the COORETEC funding initiative, which since 2004 has funded 319 projects with a funding volume of 311 million euros. At its meeting on 2 February 2011 in Bonn, the initiative's Advisory Board redefined the role of modern power plant technology for the coming energy research programme. Researchers from science and business want to close the energy supply gap caused by energy sources such as wind and solar energy as a consequence of their fluctuating yields.  more...

At the 2nd E-Energy Congress that was held on 11 and 12 January in Berlin, more than 300 experts from business, science and society discussed the fundamental requirements for developing smart electricity grids. With their help, it is intended to optimally match the growing supplies of renewable and decentralised energy sources with the electricity demand. In 2011, corresponding applications will be tested in six model regions with different focuses. The first results were presented at the congress.  more...