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@PHDTHESIS{Risch:1015889,
      author       = {Risch, Stanley Karl Anton},
      othercontributors = {Stolten, Detlef and Lauster, Michael},
      title        = {{T}echno-ökonomisches {P}otenzial dezentraler und autarker
                      {E}nergiesysteme},
      volume       = {666},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH, Zentralbibliothek, Verlag},
      reportid     = {RWTH-2025-06618},
      isbn         = {978-3-95806-829-2},
      series       = {Schriften des Forschungszentrums Jülich. Reihe Energie
                      $\&$ Umwelt},
      pages        = {1 Online-Ressource (xxiii, 210 Seiten) : Diagramme, Karten},
      year         = {2025},
      note         = {Druckausgabe: 2025. - Onlineausgabe: 2025. - Auch
                      veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University; Dissertation, Rheinisch-Westfälische Technische
                      Hochschule Aachen, 2025},
      abstract     = {In the historical energy system, energy supply was provided
                      by centralized large-scale power plants. The spatial
                      distribution of the generators could be freely chosen,
                      taking into account the proximity to consumption and fuel
                      deposits, for example in the case of lignite. The expansion
                      of renewable energy sources, on the other hand, leads to a
                      large number of decentralized generators in the energy
                      system. The conflict between generation conditions and
                      proximity to consumption in the spatial allocation of
                      generators is one of the central elements in the discussion
                      about the desired decentralization. In addition, the
                      small-scale nature of renewable generators has created space
                      for a diversity of actors. For example, energy regions are
                      driving the energy transition at the regional level. In this
                      work, the goals of energy regions, for example in terms of
                      self-sufficiency, are evaluated and the potential of the
                      municipalities to achieve these goals is identified. At the
                      same time, the study of the decentralization of the national
                      energy system is the subject of this work. For this purpose,
                      the regional energy system model ETHOS. FineRegions is being
                      developed at municipal level. The utilization of clustering
                      methods allows for the model to be applied at the national
                      scale. An influential variable of the analysis is the
                      potential of renewable energy sources. In particular, the
                      regional location of potential sites for wind energy and PV
                      plants is crucial for the objectives of the work.
                      Accordingly, detailed potential analyses are performed. In
                      the Reference-scenario, 10 231 out of 11 003 municipalities
                      with $52\%$ of the German population have the potential to
                      become energy self-sufficient. Furthermore, the results show
                      that efforts of regions to establish a self-sufficient
                      energy supply are associated with disadvantages:
                      High-population or industrial demand centers face extreme
                      costs or are unable to meet their needs independently.
                      Regions with large renewable generation potentials can
                      partially achieve self-sufficient energy supply at moderate
                      costs but forgo large revenue opportunities from energy
                      exports. There is no downside to striving for net
                      self-sufficiency as long as it is consistent with national
                      expansion goals and is not seen as a cap on renewable
                      expansion within regions. The study of different
                      decentralization scenarios with 350 model nodes in a
                      national context shows that insufficient interconnection
                      leads to a sharp increase in system costs: An unconnected
                      system is $56\%$ more expensive than the optimally connected
                      power system due to the large storage capacities and the
                      prevented integration of centralized components. In
                      addition, shifting PV systems from open space to rooftops
                      can lead to a more balanced distribution of generation in
                      the power system at a moderate additional cost of $4\%.$
                      Substitution of wind turbines leads to even more regionally
                      balanced generation, but at a higher incremental cost of
                      $12\%.$},
      cin          = {413010},
      ddc          = {620},
      cid          = {$I:(DE-82)413010_20140620$},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      urn          = {urn:nbn:de:hbz:5:2-1482329},
      doi          = {10.18154/RWTH-2025-06618},
      url          = {https://publications.rwth-aachen.de/record/1015889},
}