Suchergebnisse

Contributions to regional development made by the humanities and the social sciences typically resist estimation in quantitative terms. Yet from this it does not follow that their contributions are negligible. The investigation aims at rendering them visible in a concrete case, and therefore focusses on the State of Saxony-Anhalt (Germany). In a sociological outside perspective on the humanities and the social sciences, their present budget and structures, specific value added and demographic effects are discussed. Contributions to regional development which cannot be directly quantified are described in a qualitative manner; it is argued in favor of their non-negligibility. The most important of these are contributions to the enlightenment of society, to the conservation and development of the cultural heritage and to the minimization of great scale social risks. In a complementary perspective from within the humanities and social sciences, the traditional self-conception especially of the humanities - which traditionally take a sceptical stance toward imperatives of utility - is scanned for elements of potential regional relevance. (HoF/text adopted)

Against the background of the long-term goals of the "Energiewende" and the German ratification of the Paris climate protection agreement, both the substitution of fossil fuels like natural gas by renewable energies as well as an increase in energy efficiency in the energy system are indispensable. This requires a radical transformation of the energy system, including the gas system, with associated risks for the actors involved. Political and gas industry decision makers therefore need information on the expected future demand for gas in the German energy mix to plan adequately the expansion of the capital-intensive gas transport infrastructure. These investments often have payback periods of up to several decades. In practice, expansion planning today is carried out regularly with special consideration of import dependency and supply security in network development plans of the responsible transmission system operators. The assumed development of gas demand in the 2016 network development plan, however, does not take into account the objectives of energy system transformation. This thesis develops a methodology to include the "Energiewende" objectives defined well beyond these ten years by 2050 in an assessment of the German gas transport system. Based on a detailed analysis of the current situation of the gas transport system, a scenario analysisis carried out in order to obtain plausible gas demand developments by 2050. From these, relevant grid utilization cases for the gas transport network are derived and investigated using the highly flexible GASOPT load flow model developed within the framework of this work. The suitability of GASOPT for the load flow calculation is demonstrated qualitatively by a backtesting calculation of the peak load situation 2015 and quantitatively by a subsequent verification. The results of this thesis show that the gas transport network is only slightly utilized in the long term if the goals of the "Energiewende" are achieved due to a reduction in demand of more than 50 %. The ...

Against the background of the long-term goals of the "Energiewende" and the German ratification of the Paris climate protection agreement, both the substitution of fossil fuels like natural gas by renewable energies as well as an increase in energy efficiency in the energy system are indispensable. This requires a radical transformation of the energy system, including the gas system, with associated risks for the actors involved. Political and gas industry decisionmakers therefore need information on the expected future demand for gas in the German energy mix to plan adequately the expansion of the capital-intensive gas transport infrastructure. These investments often have payback periods of up to several decades. In practice, expansion planning today is carried out regularly with special consideration of import dependency and supply security in network development plans of the responsible transmission system operators. The assumed development of gas demand in the 2016 network development plan, however, does not take into account the objectives of energy system transformation. This thesis develops a methodology to include the "Energiewende" objectives defined well beyond these ten years by 2050 in an assessment of the German gas transport system. Based on a detailed analysis of the current situation of the gas transport system, a scenario analysis is carried out in order to obtain plausible gas demand developments by 2050. From these, relevant grid utilization cases for the gas transport network are derived and investigated using the highly flexible GASOPT load flow model developed within the framework of this work. The suitability of GASOPT for the load flow calculation is demonstrated qualitatively by a backtesting calculation of the peak load situation 2015 and quantitatively by a subsequent verification. The results of this thesis show that the gas transport network is only slightly utilized in the long term if the goals of the "Energiewende" are achieved due to a reduction in demand of more than 50 %. The ...

Vorspann
Warum endet sie nicht, die Debatte über den militärischen Widerstand? Weil neue Dokumente und neue Thesen alte Gewissheiten in Frage gestellt haben; weil Wissenschaft stets ein dialektischer Prozess ist; und weil es sich in diesem Fall nicht gerade um ein Nebenthema der Zeitgeschichte handelt. Johannes Hürter (VfZ 52, Heft 3/Juli 2004) hat die Debatte eröffnet, wurde von Gerhard Ringshausen (VfZ 53, Heft 1/Januar 2005) kritisiert und von Felix Römer (VfZ 53, Heft 3/Juli 2005) unterstützt. Dann folgten die Beiträge von Hermann Graml (VfZ 54, Heft 1/Januar 2006) und nochmals von Johannes Hürter und Felix Römer (VfZ 54, Heft 2/April 2006). Doch gibt es in dieser Sache noch mehr Argumente?