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In der vorliegenden Studie steht die Forschungsfrage im Mittelpunkt, ob ein vollständig auf erneuerbaren Energien beruhendes Stromsystem mit hohen Importanteilen von rund 10 bis 20 % nach heutigem Stand des Wissens als technisch-ökologisch realisierbar angesehen werden kann. Als Grundlage für die Untersuchung wird in erster Linie auf eine Reihe von Szenariostudien zurückgegriffen, die ein weitgehend treibhausgasemissionsfreies, zu 90 bis 100 % auf regenerativer Erzeugung basierendes und von hohen Stromimportanteilen gekennzeichnetes Stromsystem mit dem Zeithorizont 2050 modellieren und beschreiben. Dabei werden analog zu Szenarien für Deutschland auch vorliegende Szenarien für Europa in den Blick genommen, die für den europäischen Kontinent wesentliche Nettostromimporte aus Nordafrika vorsehen.
Germany and Japan have both gained substantial experience with hydrogen production and applications, albeit with focus on different sectors. They also share similar drivers for hydrogen development and, of course, similar technical and economic opportunities and challenges. However, there also are relevant differences in the policy priorities and approaches.
Notwithstanding differing emphases and patterns, the two countries share three main drivers for hydrogen development and deployment: climate mitigation and other environmental goals, energy supply diversification, and technological leadership. In this context, hydrogen has been identified by the German and the Japanese governments during the Energy Policy Dialogue as having potential for closer cooperation.
The authors of this study provide an overview of demand-side deployment by sector (residential, transport, industry, power generation and power-to-x) for both countries, as well as of their hydrogen policy debates, key institutions, R&D programs and demonstration projects. They also present a short survey on relevant international platforms and initiatives in which Japan and Germany participate.
On the basis of a meta-analysis of the role of hydrogen in 18 long-term energy system scenarios for Germany and 12 scenarios for Japan, this study draws conclusions on the possible role of hydrogen in the long term energy policy debates of both countries. Subsequently, the authors discuss sustainability criteria and certification schemes for clean hydrogen, compare the greenhouse gas intensity of different hydrogen supply chains and provide a data-based analysis to identify countries which could become important suppliers of clean hydrogen.
The concept of regime and "flat ontologies" : empirical potential and methodological implications
(2012)
The book shows that the implementation of a sustainable energy strategy in Iran provides the opportunity for further economic and social development. In this context, the aim of the book is to provide some of the analyses needed to rethink the country’s energy strategy and to grasp the chances. The authors hope to make a contribution to the emerging and rapidly growing discussion on better energy alternatives and the respective opportunities for investment, innovation and modernization. The work presented in the book should provide ideas for such opportunities and create a vision of how this could contribute towards developing a more sustainable, efficient and prosperous future energy system for Iran.
The book is based on long-term academic cooperation between Iranian researchers from several universities and the Iranian Energy Association and German researchers from the Wuppertal Institute, Büro Ö-quadrat and the University of Osnabrück. The book in hand is an important result of the collaboration. So its publication lends itself to taking stock of these twelve years of continued cooperation.