Univ.-Prof. Dr.-Ing.

Aaron Praktiknjo

Head of the Chair for Energy System Economics, Deputy Head of the Institute FCN

Praktiknjo, Aaron
Chair for Energy System Economics


Building: E.ON ERC

Room: 0.08

Mathieustr. 10

52074 Aachen


Phone: +49 241 80 49691
Fax Fax: +49 241 80 649870

Research Interests

  • Energy System Analysis
  • Energy Markets and Regulation
  • Security of Energy Supply
  • Sustainability Assessment of Energy Technology
  • Behavior of Energy Stakeholders
  • Structural Effects caused by Energy Transitions

Curriculum Vitae

Prof. Aaron Praktiknjo is head of the FCN Chair for Energy Systems Economics (ESE) and co-director at the E.ON Energy Research Center at RWTH Aachen University. He is President of the German Association for Energy Sciences and Energy Policy (GEE) and Council Member of the International Association for Energy Economics (IAEE). Together with Prof. Peter Zweifel and Prof. Georg Erdmann, he co-authored the textbook "Energy Economics - Theory and Application".



Journal Articles (full scholarly peer-review)
Priesmann, J., Nolting, L., Kockel, C., Praktiknjo, A. (2021). Time series of useful energy consumption patterns for energy system modeling. Scientific Data, 8, 148 [Nature]
Kabus, M.; Nolting, L.; Mortimer, B.J.; Koj, J.C.; Kuckshinrichs, W.; De Doncker, R.W.; Praktiknjo, A. (2020). Environmental Impacts of Charging Concepts for Battery Electric Vehicles: A Comparison of On-Board and Off-Board Charging Systems Based on a Life Cycle Assessment, Energies, 13(24), 6508. (MDPI)
Cabanero, A., Nolting, L., Praktiknjo, A. (2020). Mini-Grids for the Sustainable Electrification of Rural Areas in Sub-Saharan Africa: Assessing the Potential of KeyMaker Models, Energies, 13(23), 6350. (MDPI)
Ruhnau, O., Hirth, L., Praktiknjo A. (2020). Heating with wind: Economics of heat pumps and variable renewables, Energy Economics, 104967. [ScienceDirect]
Behm, C., Nolting, L., Praktiknjo, A. (2020). How to Model European Electricity Load Profiles using Artificial Neural Networks, Applied Energy, 277, 115564. [ScienceDirect]
Ridha, E., Nolting, L., Praktiknjo, A. (2020). Complexity Profiles: A Large-Scale Review of Energy System Models in Terms of Complexity, Energy Strategy Reviews, 30, 100515. [ScienceDirect]
Nolting, L., Praktiknjo, A. (2020). Can We Phase-out All of Them? Probabilistic Assessments of Security of Electricity Supply for the German Case, Applied Energy, 263, 114704. [ScienceDirect]
Nolting, L., Spiegel, T., Reich, M., Adam, M., Praktiknjo, A. (2020). Can Energy System Modeling Benefit from Artificial Neural Networks? Application of Two-stage Metamodels to Reduce Computation of Security of Supply Assessments, Computers & Industrial Engineering, 142. [ScienceDirect]
Dittmar, L., Praktiknjo, A. (2019). Could Bitcoin Emissions Push Global Warming Above 2°C?, Nature Climate Change 9, 656-657. [Nature]
Cerniauskas, S., Grube, T., Praktiknjo, A., Stolten, S., Robinius, M. (2019). Future Hydrogen Markets for Transportation and Industry: The Impact of CO2 Taxes, Energies 12(24). [MDPI]
Priesmann, J., Nolting, L., Praktiknjo, A. (2019). Are Complex Energy System Models More Accurate? An Intra-Model Comparison of Power System Optimization Models, Applied Energy 255(12), 2019. [ScienceDirect]
Nolting, L., Priesmann, J., Kockel, C., Rödler, G., Brauweiler, T., Hauer, I., Robinius, M., Praktiknjo, A. (2019). Generating Transparency in the Worldwide Use of the Terminology “Industry 4.0”, Applied Sciences 9(21). [MDPI]
Ruhnau, O., Hirth, L., Praktiknjo, A. (2019). Time Series of Heat Demand and Heat Pump Efficiency for Energy System Modeling, Scientific Data 6. [Nature]
Nolting L., Schuller V., Gaumnitz F., Praktiknjo A. (2019). Incentivizing Timely Investments in Electrical Grids: Analysis of the Amendment of the German Distribution Grid Regulation, Energy Policy 132(September), 754-763. [ScienceDirect]
Scharl S., Praktiknjo A. (2019). The Role of a Digital Industry 4.0 in a Renewable Energy System, International Journal of Energy Research 43(8). [Wiley]
Nolting L., Kies A., Schönegge M., Robinius M., Praktiknjo A. (2019). Locating Experts and Carving out the State of the Art: A Systematic Review on Industry 4.0 and Energy System Analysis, International Journal of Energy Research, 43(July), 3981-4002. [Wiley]
Dick C. I., Praktiknjo A. (2019). Blockchain Technology and Electricity Wholesale Markets: Expert Insights on Potentials and Challenges for OTC Trading in Europe, Energies, 12(5), 832. [MDPI]
Nolting L., Praktiknjo A. (2019). Techno-economic Analysis of Flexible Heat Pump Controls, Applied Energy, 238(March), 1417-1433. [ScienceDirect]
Ruhnau O., Bannik S., Otten S., Praktiknjo A., Robinius M. (2019). Direct or Indirect Electrification? A Review of Heat Generation and Road Transport Decarbonisation Scenarios for Germany 2050, Energy, 166(January), 989-999. [ScienceDirect]
Nolting L., Steiger S., Praktiknjo A. (2018). Assessing the Validity of European Labels for Energy Effciency of Heat Pumps, Journal of Building Engineering, 18(July), 476-486. [ScienceDirect]
Otto A., Robinius M., Grube T., Schiebahn S., Praktiknjo A., Stolten D. (2017). Power-to-Steel: Reducing CO2 through the Integration of Renewable Energy and Hydrogen into the German Steel Industry, Energies, 10(4), 451. [MDPI]
Praktiknjo A., Erdmann G. (2016). Renewable Electricity and Backup Capacities: An (Un-) Resolvable Problem? The Energy Journal 37(SI2): 89-106. [DOI]
Praktiknjo A. (2016). The Value of Lost Load for Sectoral Load Shedding Measures: The German Case with 51 Sectors, Energies, 9(2), 116. [MDPI]
Praktiknjo A. (2014). Stated Preferences based Estimation of Power Interruption Costs in Private Households: An Example from Germany, Energy, 76: 82-90. [ScienceDirect]
Praktiknjo M., Praktiknjo A. (2014). The Economic and Social Design of the Water Supply in the Metropolitan Area of Jakarta, Chemical Engineering Transactions, 42.
Heinz B., Graeber M., Praktiknjo A. (2013). The Diffusion Process of Stationary Fuel Cells in a Two-Sided Market Economy, Energy Policy, 61: 1556-1567. [ScienceDirect] [pdf]
Praktiknjo A., Hähnel A., Erdmann G. (2011). Assessing Energy Supply Security - Outage Cost in Private Households, Energy Policy, 39: 7825-7833. [ScienceDirect] [pdf]
Journal Articles (simplified or no scholarly peer-review)
Erdmann, G., Praktiknjo, A. (2020). Energy Economics: The Case of Emission Markets, EPJ Web of Conferences 246, 00020 (2020). [DOI]
Dittmar, L., Praktiknjo, A. (2019). Wie gefährlich ist Bitcoin für das Klima wirklich?, Energiewirtschaftliche Tagesfragen 12/2019, 10-13. [pdf]
Praktiknjo, A., Dittmar, L. (2019). Aufpoliert: Nature Climate Change veröffentlicht Widerspruch zu Erderwärmung durch Bitcoin, c't 20/2019. [Link]
Praktiknjo A., Dittmar L. (2016). Optimal Level of Supply Security in the Power Sector with Growing Shares of Fluctuating Renewable Energy, IAEE Energy Forum, Bergen Special 2016.
Praktiknjo A., Grein A., Dittmar L., Erdmann G. (2014). Netzsteuerung zwischen den Verteilern. In: Stromausfall: Grundlagen und Methoden zur Reduzierung des Ausfallrisikos der Stromversorgung (Wissenschaftsforum Band 12 des Bundesamts für Bevölkerungsschutz und Katastrophenhilfe).
Stolzenburg K., Eismann C., Friedmann H., Lambrecht B., Praktiknjo A. (2014). Rahmenbedingungen des Risikomanagements in der Stromversorgung, Stromausfall: Grundlagen und Methoden zur Reduzierung des Ausfallrisikos der Stromversorgung (Wissenschaftsforum Band 12 des Bundesamts für Bevölkerungsschutz und Katastrophenhilfe).
Praktiknjo A., Erdmann G. (2012). Wendemanöver: Die angepeilte Energiewende birgt Herausforderungen für die Elektrizitätsversorgung, Bevölkerungsschutz, 4/2012.
Praktiknjo A. (2011). Kosten von Stromausfällen für Private, e|m|w - Zeitschrift für Energie, Markt, Wettbewerb, 4/2011.
Books/Book Chapters
Zweifel P., Praktiknjo A., Erdmann G. (2017): Energy Economics - Theory and Applications. Springer-Verlag, Heidelberg. ISBN 978-3-662-53022-1.
Praktiknjo A. (2013): Sicherheit der Elektrizitätsversorgung - Das Spannungsfeld von Wirtschaftlichkeit und Umweltverträglichkeit. Springer-Verlag, Heidelberg. ISBN 978-3-658-04344-5.
Contributions to Conferences and Workshops
Nolting, L., Praktiknjo, A., 2020. A guideline to identify optimal levels of complexity in energy system models - insights from security of supply assessments, International Ruhr Energy Conference (INREC) 2020, September 9-10, 2020, Essen, Germany (Online conference).
Priesmann, J., Spiegelburg, S., Madlener, R., Praktiknjo, A. (2020). Energy Transition and Social Justice - Allocation of Renewable Energy Support Levies Among Residential Consumers in Germany, International Ruhr Energy Conference (INREC) 2020, September 9-10, 2020 (Online conference).
Cabanero, A., Nolting, L., Praktiknjo, A., 2020. Mini-grids for the sustainable electrification of rural areas in sub-Saharan Africa: Assessing the potential of Key-Maker Models, 15th Conference on Sustainable Development of Energy, Water and Environmental Systems (SDEWES), September 1-10, 2020, Cologne, Germany (Online conference).
Kockel, C., Nolting, L., Priesmann, J., Praktiknjo, A. (2020). Energy infrastructure for decarbonizing other energy sectors through renewable electricity - A spatio-temporal analysis from useful energy demand to renewable energy supply of sector coupling pathways based on the German case, Virtual ADBI Workshop on Integration of Renewable Energy in Energy Systems: Perspectives on Investment, Technology, and Policy, July 8-10, 2020, Tokyo, Japan (Asian Development Bank Institute).
Nolting, L., Praktiknjo, A. (2019). Can we phase-out all of them? How market interventions impact security of supply in Germany, 16th International Association for Energy Economics (IAEE) European Conference (IAEE2019), August 25-28, 2019, Ljubljana, Slovenia.

Praktiknjo A. (2018). Support of Renewable Electricity and Investments in Conventional Generation – Experiences from the German Energiewende, Singapore International Energy Week 2018, October 29 - November 1, 2018, Singapore (invited plenary).

Praktiknjo A. (2018). Security of Electricity Supply with Growing Shares of Renewables and Phase-Out of Conventional Generators, Seminar of the Energy Studies Institute at the National University of Singapore, September 19, 2018, Singapore (invited talk).

Dittmar L., Praktiknjo A. (2018). The Electricity Intensity of Bitcoin Mining, 41th IAEE International Conference 2018, June 10-13, 2018, Groningen, The Netherlands.

Nolting L., Praktiknjo A. (2018). Techno-Economic Analysis of Flexible Heat Pump Controls, 41th IAEE International Conference 2018, June 10-13, 2018, Groningen, The Netherlands.

Nolting L., Praktiknjo A. (2018). Techno-Economic Analysis of Flexible Heat Pump Controls, ENERDAY 2018 - 12th International Conference on Energy Economics and Technology, April 27, 2018, Dresden, Germany.

Nolting L., Praktiknjo A. (2018). Complexity Management in Energy System Models, Poster Presentation, 661st WE-Heraeus Seminar on Nonlinear Dynamics, Optimization and Control of Distributed Energy Systems, January 29-31, 2018, Bad Honnef, Germany.