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    <publishedDate>2024-03-27</publishedDate>
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    <title language="eng">Mathematical optimization based flow scenario generation for operational analysis of European gas transport networks based on open data</title>
    <abstract language="eng">The decarbonization of the European energy system demands a rapid and comprehensive transformation while securing energy supplies at all times. Still, natural gas plays a crucial role in this process. Recent unexpected events forced drastic changes in gas routes throughout Europe. Therefore, operational-level analysis of the gas transport networks and technical capacities to cope with these transitions using unconventional scenarios has become essential.&#13;
&#13;
Unfortunately, data limitations often hinder such analyses. To overcome this challenge, we propose a mathematical model-based scenario generator that enables operational analysis of the European gas network using open data. Our approach focuses on the consistent analysis of specific partitions of the gas transport network, whose network topology data is readily available. We generate reproducible and consistent node-based gas in/out-flow scenarios for these defined network partitions to enable feasibility analysis and data quality assessment.&#13;
&#13;
Our proposed method is demonstrated through several applications that address the feasibility analysis and data quality assessment of the German gas transport network. By using open data and a mathematical modeling approach, our method allows for a more comprehensive understanding of the gas transport network's behavior and assists in decision-making during the transition to decarbonization.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-95789</identifier>
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    <author>Inci Yueksel-Erguen</author>
    <submitter>Inci Yueksel-Erguen</submitter>
    <author>Thorsten Koch</author>
    <author>Janina Zittel</author>
    <series>
      <title>ZIB-Report</title>
      <number>24-03</number>
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  <doc>
    <id>9297</id>
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    <publishedYear>2025</publishedYear>
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    <language>eng</language>
    <pageFirst>493</pageFirst>
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    <publisherName>Springer</publisherName>
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    <completedDate>2025-07-23</completedDate>
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    <title language="eng">Consistent flow scenario generation based on open data for operational analysis of European gas transport networks</title>
    <abstract language="eng">In recent years, European gas transport has been affected by major disruptive events like political issues such as, most recently, the Russian war on Ukraine. To incorporate the impacts of such events into decision-making during the energy transition, more complex models for gas network analysis are required. However, the limited availability of consistent data presents a significant obstacle in this endeavor. We use a mathematical-modeling-based scenario generator to deal with this obstacle. The scenario generator consists of capacitated network flow models representing the gas network at different aggregation levels. In this study, we present the coarse-to-fine approach utilized in this scenario generator.</abstract>
    <parentTitle language="eng">Operations Research Proceedings 2023. OR 2023</parentTitle>
    <identifier type="doi">10.1007/978-3-031-58405-3_63</identifier>
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    <enrichment key="AcceptedDate">2023-11-10</enrichment>
    <author>Inci Yueksel-Erguen</author>
    <submitter>Inci Yüksel-Ergün</submitter>
    <author>Thorsten Koch</author>
    <author>Janina Zittel</author>
    <collection role="persons" number="koch">Koch, Thorsten</collection>
    <collection role="persons" number="zittel">Zittel, Janina</collection>
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  <doc>
    <id>9252</id>
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    <publishedYear>2023</publishedYear>
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    <completedDate>2023-11-18</completedDate>
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    <title language="eng">Modeling the transition of the multimodal pan-European energy system including an integrated analysis of electricity and gas transport</title>
    <abstract language="eng">Most recently, the European energy system has undergone a fundamental transformation to meet decarbonization targets without compromising the security of the energy supply. The transition involves several energy-generating and consuming sectors emphasizing sector coupling. The increase in the share of renewable energy sources has revealed the need for flexibility in supporting the electricity grid to cope with the resulting high degree of uncertainty. The new technologies accompanying the energy system transition and the recent political crisis in Europe threatening the security of the energy supply have invalidated the experience from the past by drastically changing the conventional scenarios. Hence, supporting strategic planning tools with detailed operational energy network models with appropriate mathematical precision has become more important than ever to understand the impacts of these disruptive changes. In this paper, we propose a workflow to investigate optimal energy transition pathways considering sector coupling. This workflow involves an integrated operational analysis of the electricity market, its transmission grid, and the gas grid in high spatio-temporal resolution. Thus, the workflow enables decision-makers to evaluate the reliability of high-level models even in case of disruptive events. We demonstrate the capabilities of the proposed workflow using results from a pan-European case study. The case study, spanning 2020-2050, illustrates that feasible potential pathways to carbon neutrality are heavily influenced by political and technological constraints. Through integrated operational analysis, we identify scenarios where strategic decisions become costly or infeasible given the existing electricity and gas networks.</abstract>
    <parentTitle language="eng">Energy Systems</parentTitle>
    <identifier type="doi">10.1007/s12667-023-00637-5</identifier>
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    <enrichment key="AcceptedDate">2023-10-21</enrichment>
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    <author>Inci Yueksel-Erguen</author>
    <submitter>Inci Yüksel-Ergün</submitter>
    <author>Dieter Most</author>
    <author>Lothar Wyrwoll</author>
    <author>Carlo Schmitt</author>
    <author>Janina Zittel</author>
    <collection role="persons" number="zittel">Zittel, Janina</collection>
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  <doc>
    <id>7826</id>
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    <publishedDate>2020-05-04</publishedDate>
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    <title language="eng">Lessons learned from gas network data preprocessing</title>
    <abstract language="eng">The German high-pressure natural gas transport network consists of thousands of interconnected elements spread over more than 120,000 km of pipelines built during the last 100 years. During the last decade, we have spent many person-years to extract consistent data out of the available sources, both public and private. Based on two case studies, we present some of the challenges we encountered. &#13;
Preparing consistent, high-quality data is surprisingly hard, and the effort necessary can hardly be overestimated. Thus, it is particularly important to decide which strategy regarding data curation to adopt. Which precision of the data is necessary? When is it more efficient to work with data that is just sufficiently correct on average?&#13;
In the case studies we describe our experiences and the strategies we adopted to deal with the obstacles and to minimize future effort. &#13;
Finally, we would like to emphasize that well-compiled data sets, publicly available for research purposes, provide the grounds for building innovative algorithmic solutions to the challenges of the future.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-78262</identifier>
    <author>Inci Yueksel-Erguen</author>
    <submitter>Inci Yueksel-Erguen</submitter>
    <author>Janina Zittel</author>
    <author>Ying Wang</author>
    <author>Felix Hennings</author>
    <author>Thorsten Koch</author>
    <series>
      <title>ZIB-Report</title>
      <number>20-13</number>
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    <collection role="persons" number="koch">Koch, Thorsten</collection>
    <collection role="persons" number="zittel">Zittel, Janina</collection>
    <collection role="projects" number="MODAL-GasLab">MODAL-GasLab</collection>
    <collection role="projects" number="MODAL-Gesamt">MODAL-Gesamt</collection>
    <collection role="persons" number="wang">Wang, Ying</collection>
    <collection role="institutes" number="enernet">Energy Network Optimization</collection>
    <collection role="persons" number="yueksel-erguen">Yüksel-Ergün, Inci</collection>
    <collection role="projects" number="plan4res">Plan4res</collection>
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    <collection role="projects" number="MODAL-EnergyLab">MODAL-EnergyLab</collection>
    <collection role="institutes" number="aopt">Applied Optimization</collection>
    <file>https://opus4.kobv.de/opus4-zib/files/7826/ZIBReport_20-13.pdf</file>
    <file>https://opus4.kobv.de/opus4-zib/files/7826/ZIB-Report_20-13_v2.pdf</file>
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    <publishedDate>2022-09-17</publishedDate>
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    <title language="eng">Modeling the transition of the multimodal pan-European energy system including an integrated analysis of electricity and gas transport</title>
    <abstract language="eng">The European energy system has been through a fundamental transformation since the Paris Agreement to reduce greenhouse gas emissions. The transition involves several energy-generating and consuming sectors emphasizing sector coupling. The increase in the share of renewable energy sources has revealed the need for flexibility in the electri&#13;
city grid. Thus, holistic planning of pathways towards decarbonized energy systems also involves assessing the gas infrastructure to provide such a flexibility and support for the security of supply. In this paper, we propose a workflow to investigate such optimal energy transition pathways considering sector coupling. This workflow involves an integrated operational analysis of the electricity market, its transmission grid, and the gas grid in high spatio-temporal resolution. In a case study on a pan-European scale between 2020-2050, we show that carbon neutrality can be reached within feasible additional costs and in time. However, the manifestation of the potential pathways strongly depends on political and technological constraints. Sector coupling acts as an enabler of cross-border cooperation to achieve both, decarbonization and security of supply.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-87774</identifier>
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    <author>Inci Yueksel-Erguen</author>
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    <author>Dieter Most</author>
    <author>Lothar Wyrwoll</author>
    <author>Carlo Schmitt</author>
    <author>Janina Zittel</author>
    <series>
      <title>ZIB-Report</title>
      <number>22-17</number>
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    <collection role="persons" number="zittel">Zittel, Janina</collection>
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