climate scientists have warned for years that the rise in temperature was only in the handle, if the emissions will be reduced to carbon dioxide to zero by 2050. The just-launched glaciers initiative calls for this goal. The climate movement of young people, however, goes even further. It calls for a reduction to zero by 2030.
which would mean a transition of the energy supply, is largely unknown. To change this the green Basel member of the Swiss Parliament Sibel Arslan. She has asked in the spring session of the Federal Council, the measures and their costs for the reduction of the greenhouse gas to "net zero" by 2030.
Germany is a comprehensive study, which considers both the energy production, its distribution and storage, as well as the consumption for heating, cooling, transport and industry in a holistic way. The was poking out from under catch in 2013 of the Union of the German academies of Science. It is supported by the German government financially. Over a hundred Energy experts from engineering and natural Sciences, Economics, Law and social Sciences work together.
The result: The energy transition in Germany is estimated to be three to four times as expensive as in the past, if the targets are to be achieved by 2050. 3'000'000'000'000 Euro in addition it would cost to reduce the emission of carbon dioxide by 2050 to 90 percent. With today's measures, only a reduction of 60 per cent by 2050 is possible.
the two physicists Eberhard Umbach and Hans-Martin Henning write in the journal of the German Physical society. Henning is the Director of the Fraunhofer Institute for Solar energy systems, and on the Executive Board of the interdisciplinary project, Umbach was the Chairman of the Karlsruhe centre of technology and President of the German Academy of technical Sciences.
42 million electric cars
The study also sets out what measures would be necessary to achieve the objectives of the German energy transition. A large part of the fossil energy for heat and transport would have to be replaced by electricity. This would double the electricity demand in Germany. Up to the year 2050, approximately 16 million heat pumps instead of Gas or Oil heaters need to be installed.
The individual transport would have to be the increase on electric and hybrid vehicles converted. For the 85 percent reduction target of 42 million vehicles with internal combustion engines would have by 2050, total to be replaced by electric vehicles. Today, registered in Germany, 60'000 electric vehicles per year. According to the authors, it would have to be a year to 1.5 million.
the current providing would be five to seven times more wind turbines and solar cells are needed than it is today installed. On demand, the authors write that this is the case of solar energy with the use of existing buildings and built-up areas. In the case of wind power, the doubling of the existing 30000 wind turbines and the simultaneous Expansion of power is necessary.
A large part of the fossil energy for heat and transport would have to be replaced by electricity.
If from the weather and from the sun-dependent energy carrier would dominate electricity production, the electricity grid and the energy storage is crucial. Periods with little solar radiation in Winter, and at the same time little Wind could last for weeks, the authors write. Therefore, you need to be in the year 2050, the same number of power plants, such as today, which could generate Gas quickly electricity, if needed. However, this would run only "a few Hundred to a few Thousand" hours per year.
In all this, the cultural and social resistance "were" not to underestimate. The authors recommend the introduction of a comprehensive price for the greenhouse gas carbon dioxide. Today, the transport sector, agriculture and private households are excluded from emissions trading. Then, coal-fired power plants market would no longer be economically viable, the authors write.
Arslan finds the German study is interesting. "This is a good starting point and should be clear and transparent, also for Switzerland," she says. She was aware of the fact that climate protection is not free. "And it may cost us something, too."
Skeptical of the Bernese FDP-Nationalrat Christian water looks, it is fall : "I don't see how zero CO2 by 2030 is feasible." The Glacier is a tour de force with "huge consequences", which would hide the initiator. A climate policy based on the Motto "no matter what the Cost, it is" water fall devastating. "Measures need to be environmentally good, socially acceptable and economically viable."
Created: 01.05.2019, 22:07 PM