Prof. Dr. rer. nat. Clemens Hoffmann

Section head

Hoffmann, Clemens
+49 561 804-6182
+49 561 804-6027
Wilhelmshöher Allee 73
34121 Kassel
WA-altes Gebäude (WA 73), 2140

Research interests

  • Business models of the Energy Transition
  • Digitalisation of the Energy Transition
  • Smart Grids


Decarbonisation of traffic - feedbacks with the energy system - global to regional (DeVKopSys2)

01/2022 - 10/2024

Prof. Dr. rer. nat. Hoffmann, Clemens
Nacken, Lukas; Dr. Krebs, Friedrich

The project objectives include analysis of impacts of decarbonisation in the traffic sector and analysis of the global potential to supply P2X fuels under consideration of national transformation pathways.

Heat Trans­ition of the Urban Build­ing Stock by In­ter­act­ive De­cision Space Ana­lysis

08/2022 - 07/2025

Prof. Dr. rer. nat. Hoffmann, Clemens
Dr. Krebs, Friedrich; Dr. Holzhauer, Sascha; Digel, Ivan; Kaiser, Alwina

The project WAERMER shall apply a methodical integration of energy system optimisation on an urban level and agent-based modelling of individual investment behaviour including preferences and scope of action. It shall help identify the requirements for a successful transition of heat provision in the urban building stock towards CO2-neutrality. Building owners are surveyed about relevant factors of their investment decision making. In an iterative process, measures to incentivise individual investments can be developed and simulated as well as required adaptations to the technical energy system identified. The agent-based modelling explicitly considers the influence of energy consultants and craftspeople concerning their changing knowledge and recommendations.


2020Do, T. H., & Hoffmann, C. (2020). A power development planning for Vietnam under the CO2 emission reduction targets. ENERGY REPORTS, 6(2), 19–24.
2019Nacken, L., Krebs, F., Fischer, T., & Hoffmann, C. (2019). Integrated renewable energy systems for Germany–A model-based exploration of the decision space. In IEEE (Ed.), 2019 16th International Conference on the European Energy Market (EEM) (pp. 1–8). IEEE.
2019Do, T. H., & Hoffmann, C. (2019). Estimation of the Future Electricity Price Surcharge for the Integration of Wind and Solar Power into the Vietnamese Electricity System. In IEEE (Ed.), 2019 Asia Power and Energy Engineering Conference (IEEE, pp. 263–268).
2018Do, T. H., & Hoffmann, C. (2018). Innovation of price adjustment mechanisms to support investment in solar power in Germany. In E3S Web of Conference (Ed.), 2018 The 3rd International Conference on Power and Renewable Energy (E3S Web of Conference, Vol. 64, p. UNSP 02007).
2016Rohrig, K., Hoffmann, C., Gerhardt, N., Schmidt, D., Schumacher, P., Henning, H.-M., Palzer, A., & Lechtenböhmer, S. (2016). Wirtschaftliche und technische Aspekte der Dekarbonisierung des Wärmesektors. In P. Szczepanski (Ed.), Forschung für die Wärmewende : Beiträge zur FVEE-Jahrestagung 2015, des Forschungsverbunds Erneuerbare Energien (pp. 27–31). Berlin: Forschungsverbund Erneuerbare Energien. Retrieved from
2014Hoffmann, C., Henning, H.-M., & Schmidt, D. (2014). Transformationsprozess des Energiesystems: Technische Perspektive - Konsistente Gesamtsysteme. In P. Szczepanski (Ed.), Forschung für ein nachhaltiges Strom-Wärme-System : Beiträge zur Jahrestagung 2013 des ForschungsVerbunds Erneuerbare Energien (pp. 29–34). Berlin: Forschungsverbund Erneuerbare Energien. Retrieved from
2014Hoffmann, C., Gerhardt, N., Sandau, F., Zimmermann, B., Pape, C., & Bofinger, S. (2014). Geschäftsmodell Energiewende: Eine Antwort auf das “Die-Kosten-der-Energiewende”-Argument". Kassel: Fraunhofer IWES. Retrieved from
2013Erhorn, H., Schmidt, D., Bauernhansl, T., Mandel, J., Dörr, M., Kalz, D., Kuhn, T. E., Kneiske, T. M., Hoffmann, C., Henning, H.-M., Pohlig, A., Pollerberg, C., Doetsch, C., Vajen, K., Lauterbach, C., Schmitt, B., Zillig, W., & Martens, N. N. (2013). Bauliche Maßnahmen zur Energieeinsparung. In R. Neugebauer (Ed.), Handbuch Ressourcenorientierte Produktion (pp. 291–363). München: Carl Hanser Verlag.
2013Hoffmann, C. (2013). Grid vs. storage in a 100% renewable Europe. Renewable Energy, 50, 826–832.
2011Hoffmann, C. (2011). Reduced storage and balancing needs in a fully renewable European power system with excess wind and solar power generation. Renewable Energy, 36(9), 2515–2523.
2010Hoffmann, C. (2010). Seasonal optimal mix of wind and solar power in a future, highly renewable Europe. Renewable Energy, 35(11), 2483–2489.


11/2019Barometer of the Energy Transition
Hoffmann, Clemens
03/2019Energiewende und Wertschöpfung am Beispiel neuer gesellschaftlicher Transformationsprozesse
Hoffmann, Clemens
02/2019Warum die Energieerzeugung den Planeten und die Energiewende die Gemüter erhitzt
Hoffmann, Clemens
05/2019 Hoffmann, Clemens
09/2018Designing Energy Transition
Hoffmann, Clemens
08/2018Das gemeinsame Konzept von FhG IEE und SUN zu einer nordhessischen Energiewende
Hoffmann, Clemens
04/2018Barometer of the Energy Transition
Hoffmann, Clemens
11/2018Energieversorgung der Zukunft
Hoffmann, Clemens
10/2017Energiewende und energieintensive Industrie
Hoffmann, Clemens
06/2017What ist the energy transition and new energy paradigm?
Hoffmann, Clemens
09/2017Integrating the distributed RE generation - a case for rooftop solar integration in distributed systems
Hoffmann, Clemens
New Dehli
04/2016Neue Erzeugungsmöglichkeiten erfordern neue Lösungen - Wind - und Solarenergie erneuern Geschäftsmodelle und "Betriebs-Weise"
Hoffmann, Clemens
11/2015Next steps for the German "Energiewende"
Hoffmann, Clemens
02/2015Business Case Energy Transition
Hoffmann, Clemens
11/2015Gemeinsam forschen für die Energie der Zukunft -
Forschungshighlights der letzten 25 Jahre

Hoffmann, Clemens
07/2015Keynote: The Energiewende as a Business Case
Hoffmann, Clemens
03/2015Kosten und Nutzen der neuen Stromwelt
Hoffmann, Clemens
11/2015Energy Transition of Innovation Driver
Hoffmann, Clemens


10/1987 - 3/1992PhD at Max-Planck Institute for plasma physics in Garching near Munich. Dissertation title: "The impact of ion cyclotron resonance-heating on the distribution of particles in a Tokamak plasma".
10/1981 - 6/1987Studies of physics at the University of Hamburg with degree Dipl. Phys. Diploma thesis title: "3-Jet-effect profile in deep-inelastic electron-hadron-diffusion" at the German Electron Synchrotron.