Fraunhofer-Institut für System- und Innovationsforschung ISI

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Metastudie Wasserstoff. Was lässt sich aus Energiesystemstudien schlussfolgern?

2022 , Wietschel, Martin , Hebling, Christopher

Im Auftrag des Nationalen Wasserstoffrats haben die drei Fraunhofer-Institute ISI, ISE und IEG in einer Metastudie die potentielle Nachfrage nach Wasserstoff sowie Wasserstoffderivaten bis 2050 analysiert. Hierzu wurden aktuelle Systemstudien für die EU und für Deutschland mit Szenarien für einen ambitionierten Klimaschutz analysiert. Die ausgewerteten Studien haben eine (stark techno-ökonomische) Systemsicht aus einer Energieperspektive heraus. Nicht alle Aspekte eines Transformationspfades (z. B. heimische Arbeitsplätze und Wertschöpfung, bestehende Regulierung, beschlossene Fördermaßnahmen etc.) werden dabei berücksichtigt. Diese Studien arbeiten mit Szenarien, die keine Vorhersagen darstellen, sondern die möglichen Entwicklungen und techno-ökonomische Pfade unter verschiedenen Annahmen abbilden.

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Gesamtsystemtransformation und Emissionspfade zur Klimaneutralität

2021 , Luderer, Gunnar , Günther, Claudia , Sörgel, Dominika , Kost, Christoph , Blesl, Markus , Haun, Matthias , Kattelmann, Felix , Pietzcker, Robert , Rottoli, Marianna , Schreyer, Felix , Sehn, Vera , Sievers, Luisa

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Plug-in electric vehicles' automated charging control: iZEUS Project

2017 , Dallinger, David , Kohrs, Robert , Mierau, Michael , Marwitz, Simon , Wesche, Julius P.

This chapter examines how plug-in electric vehicles can be managed to balance the fluctuation of renewable electricity sources. The evaluations of this chapter were object of the iZEUS Project ""Intelligent Zero Emission Urban System"" funded by the German Federal Minister for Economic Affairs and Energy. In this context, different control strategies are introduced and, in order to investigate indirect control via electricity tariffs, an electricity market analysis of a system with a high share of generation from renewable electricity sources has been conducted. The analysis uses driving data collected from battery electric and plug-in hybrid vehicles in a research project which means that real charging and driving behavior can be considered. The results show that it is difficult to implement smart charging based on economic arguments because the incentives from day-ahead electricity markets are relatively small. In addition, a novel, autonomous control approach is being discussed for plug-in electric vehicles. While measuring the voltage at the grid connection point, plug-in electric vehicles are able to fully independently generate operation schedules that can avoid load peaks and integrate fluctuating power outputs from distributed renewable generation sources. The results reveal that combining indirect, price-based control to consider the system level with autonomous voltage-based control to consider the situation in distribution grids is a very promising control approach that allows electric vehicles to benefit from sustainable renewable generation and avoids load peaks due to simultaneous charging.

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Smart grid agent: Plug-in electric vehicle

2014 , Dallinger, David , Link, Jochen , Büttner, Markus

This study describes a method for programming a plug-in electric vehicle (PEV) agent that can be used in power system models and in embedded systems implemented in real PEVs. Implementing the software in real-life applications and in simulation tools enables research with a high degree of detail and practical relevance. Agent-based programming, therefore, is an important tool for investigating the future power system. To demonstrate the PEV agent behavior, an optimization algorithm is presented and two battery aging methods, as well as their effect on vehicle-to-grid operation, are analyzed. Aging costs based on the depth-of-discharge result in shallow cycles and a strong dependency on driving behavior, because the state-of-charge affects the discharging process. In contrast, aging costs based on energy throughput calculations result in deeper cycles and V2G operation, which is less dependent on driving behavior.

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Deutschland auf dem Weg zur Klimaneutralität 2045. Ariadne-Report. Zusammenfassung

2021 , Luderer, Gunnar , Günther, Claudia , Sörgel, Dominika , Kost, Christoph , Benke, Falk , Auer, Cornelia , Koller, Florian , Herbst, Andrea , Reder, Klara , Böttger, Diana , Ueckerdt, Falko , Pfluger, Benjamin , Wrede, Daniel , Strefler, Jessica , Merfort, Anne , Rauner, Sebastian , Siala, Kais , Schlichenmaier, Simon

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Wasserstoff-Roadmap Baden-Württemberg

2020 , Klingler, Anna-Lena , Schnabel, Frieder , Groos, Ulf , Hebling, Christopher , Schaadt, Achim , Smolinka, Tom , Döscher, Henning , Kimpeler, Simone , Wietschel, Martin , Dönitz, Ewa , Neuwirth, Marius

Mit einer Wasserstoff-Roadmap soll die Weiterentwicklung der Wasserstoffwirtschaft in Baden-Württemberg vorangetrieben werden. Das Land zeichnet sich dabei durch die herausragende Unternehmens- und Forschungslandschaft im Bereich der Wasserstoff- und Brennstofftechnologie und die damit verbundenen vielfältigen Potenziale aus.

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Opportunities and challenges of high renewable energy deployment and electricity exchange for North Africa and Europe - scenarios for power sector and transmission infrastructure in 2030 and 2050

2016 , Boie, Inga , Kost, Christoph , Bohn, Sven , Agsten, Michael , Bretschneider, Peter , Snigovyi, Oleksandr , Pudlik, Martin , Ragwitz, Mario , Schlegl, Thomas , Westermann, Dirk

Climate change and limited availability of fossil fuel reserves stress both the importance of deploying renewable energy sources (RES) for electricity generation and the need for a stronger integration of regional electricity markets. This analysis focuses on North African (NA) countries, which possess vast resources of renewable energy but whose electricity supply is still largely dependent on fossil fuels. An analysis of cost-optimized deployment scenarios for RES is conducted in five NA countries in 2030 and 2050. Three electricity models are combined to derive results covering trans-regional to sub-national level, including a detailed analysis of grid capacities and future transmission challenges. Further, opportunities for integration of European and NA electricity markets are evaluated. Results confirm that, by 2050, high RES shares - close to 100% - are possible in NA. Wind energy is the dominant technology. Concentrated Solar Power (CSP) plants also play an important role with rising RES shares due to the possibility to store thermal energy. Electricity exports to Europe gain particular importance in the period after 2030. Substantial transmission grid reinforcements on AC-level and the construction of a high voltage DC overlay grid are prerequisites for the forecasted scenarios.

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C/sells - das Energiesystem der Zukunft im Solarbogen Süddeutschlands

2021 , Reuter, Albrecht , Langniß, Ole , Haller, Birgit , Spengler, Nicolas , Bär, Christian , Bekk, Anke , Dreher, Alexander , Dütschke, Elisabeth , Gölz, Sebastian , Habbishaw, Katharina , et al. , Hoppe, Jens , Klausmann, Florian , Kohrs, Robert , Kühnbach, Matthias , Wesche, Julius , Liebehentze, Sven , Klobasa, Marian , Müller, Tobias , Nestle, David , Pelka, Sabine , Schütt, Jonathan , Stute, Judith , Lutz, Alexander , Wiemer, Martin , Wittwer, Christof , Marten, Frank

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Mapping and analyses of the current and future (2020-2030) heating / cooling fuel deployment (fossil / renewables). Work package 3: Scenarios for heating & cooling demand and supply until 2020 and 2030; Work package 4: Economic analysis

2017 , Fleiter, Tobias , Steinbach, Jan , Ragwitz, Mario , Dengler, J. , Köhler, B. , Dinkel, A. , Bonato, P. , Azam, N. , Kalz, D. , et. al.

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Technology policy for wind and solar energy in Egypt

2014 , Boie, Inga , Pudlik, Martin , Ragwitz, Mario

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