Integrated sustainability assessment and optimization of energy systems

  • Project team:

    Buchgeister, Jens (Project leader)

  • Funding:

    Federal Ministry for Economic Affairs and Energy (BMWi)

  • Start date:


  • End date:


  • Project partners:

    German Aerospace Center Stuttgart, Institute of Engineering Thermodynamics; University of Freiburg, Institute of Economic Structure Research (GWS); Institute for Sustainable Technical Systems (INATECH); Applied University of Pforzheim, Institute for Industrial Ecology (INEC); University of Stuttgart, Center for Interdisciplinary Risk and Innovation Studies (ZIRIUS)

  • Research group:

    Research for Sustainable Energy Technologies

Project description

The political debate on the sustainable transformation of the energy system often focusses on the aspects of climate protection and associated expenses for private households and the industry. Other aspects such as resource demand, social acceptance or life cycle emissions of pollutants are often neglected. However, these issues have to consider in relation to transform and control by political measures towards a sustainable energy system.

The goal is the development of a new generic modelling and assessment approach for energy scenarios which allows a multicriteria assessment and optimization of technically and structurally feasible development pathways of the energy system in Germany. Assessment criteria include economic, ecologic and social indicators.

The project partners pursue the following aims:

  • Development of an interdisciplinary, integrated method for the sustainability assessment of transformation scenarios for the (German) energy system. Economic, ecologic and social aspects will be taken into account through a coupling of models, methods and competences of the project partners.
  • Analysis and comparative sustainability assessment of a spectrum of relevant transformation scenarios for Germany
  • Optimization of capacity expansion in the power sector under consideration of ecological, economic and social sustainability aspects
  • Identification and analysis of conflicting goals and trade-offs between different sustainability indicators which will occur during the transformation process
  • Formulation of conclusions for energy policy and society with respect to alternative courses of action


Buchgeister, J.; Naegler, T.; Hottenroth, H.; Simon, S.; Tietze, I.; Viere, T.; Junne, T.
Lebenszyklusbasierte Umweltauswirkungen von zukünftigen Transformationspfaden in Deutschland – Ergebnisse aus InNOSys
2023, May 23. Sitzung des KIT Zentrum Energie, Topic "System & Nachhaltigkeit" (2023 23), Karlsruhe, Germany, May 25, 2023 
Buchgeister, J.; Pineau, C.; Spatafora, L.; Frahm, M.
LCC und LCA des Heizungssystems inkl. PV u. Batterie des Wärmepumpenhauses des EnergyLab
2022. Sitzung des KIT Zentrum Energie, Topic "System & Nachhaltigkeit" (2022), Karlsruhe, Germany, November 17, 2022 
Journal Articles
Naegler, T.; Becker, L.; Buchgeister, J.; Hauser, W.; Hottenroth, H.; Junne, T.; Lehr, U.; Scheel, O.; Schmidt-Scheele, R.; Simon, S.; Sutardhio, C.; Tietze, I.; Ulrich, P.; Viere, T.; Weidlich, A.
Integrated multidimensional sustainability assessment of energy system transformation pathways
2021. Sustainability (Switzerland), 13 (9), 5217. doi:10.3390/su13095217Full textFull text of the publication as PDF document
Buchgeister, J.
Procedure for selection of the Sustainability Indicators
2021. Integrierte Nachhaltigkeits-Bewertung und -Optimierung von Energiesystemen : Abschlussworkshop (InNOSys 2021), Online, February 24–25, 2021 


Jens Buchgeister
Karlsruhe Institute of Technology (KIT)
Institute for Technology Assessment and Systems Analysis (ITAS)
P.O. Box 3640
76021 Karlsruhe

Tel.: +49 721 608-26720