So-called CO2-free power stations will be an important topic for the German EU presidency starting in January 2007. The Fraunhofer Institute for Systems and Innovation Research ISI in Karlsruhe together with the Federal Institute for Geosciences and Natural Resources (BGR) has compiled and evaluated the current state of international research. The study conducted for the Federal Environmental Agency provides answers on which methods there are for capturing CO2 from power station emissions, how the gas can be stored below ground and what economic consequences the technology has.
The Fraunhofer ISI concludes that CO2 capture is an interesting bridging technology to significantly reduce the emissions of the greenhouse gas in the next 20 to 50 years until the full portfolio of regenerative energy sources has been developed including photovoltaic and solar thermal electricity. But it is not a miracle solution: power stations with CO2 capture consume one third more coal or gas and thus do not constitute progress towards a sustainable energy supply. According to studies of the BGR, storage possibilities for CO2 are mainly to be found in northern Germany. However, the suitability and capacity of individual underground structures are still unknown.
Whether CO2-free power stations are economic depends on the standard of comparison used. In spite of the complex technology involved, they are currently much cheaper than part of the renewable energy technology portfolio such as photovoltaic and geothermal electricity. If all the costs are taken into account including the costs for capture, transport and storage, avoiding one ton of CO2 costs about 40 Euro and is thus almost double what operators of conventional power stations have to pay for emission allowances under the emissions trading scheme. However, emission certificates will probably become more expensive so that the first large CO2-free power station which RWE plans to put into operation in 2014 could be competitive by then.
It is not certain how residents will react to underground CO2 storage in their vicinity. Legal issues of CO2 capture and storage also require clarification according to Fraunhofer ISI. So far, the laws concerning underground formations such as the Federal Mining Act or the Federal Water Act do not take CO2 storage into account.
Upcycling 'fast fashion' to reduce waste and pollution
03.04.2017 | American Chemical Society
Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy