Dr. Ing. Alexandra Pehlken Head of Group Sustainable Manufacturing Systems

Dr. Ing. Alexandra Pehlken

Position at OFFIS

Head of Group Sustainable Manufacturing Systems

Research and Developement Division

Produktion / Sustainable Manufacturing Systems

Competence Cluster


Position at the University

Groud Leader Cascade Use 2014-2019

Further Activities

EU Evaluator Horizon 2020,
Head of the Steinbeis Transfer Centre Resource
Member of the Board of OLEC e.V.

Research Focus

Supply Chains, Life Cycle Assessment, Material Flow Analysis, Energy Flow Analysis, Raw Materials, Critical Raw Materials, Strategic Raw Materials, Cascade Use, Data Uncertainty, Energy Management, Renewable Energies, Professional Data Center, Grey Energy, Recycling, Secondary Raw Materials, Circular Economy
Alexandra Pehlken studied Mining and Mineral processing at RWTH Aachen University in Aachen, Germany. She performed her doctorate degree at the Mining Faculty in 2002. Her expertise lies in the secondary resource management and the cascade using of materials with its impact on the life cycle performance. While being an expert in recycling, she is also involved in renewable energies. Succeeding her doctorate degree she was granted a scholarship from Germany to work for two years (2004-2005) at Materials Technology Laboratory (MTL) NRCan in Ottawa, Canada. From March 2014 until September 2019 she was head of the research group Cascade Use at Carl von Ossietzky University. Since June 2019 she is a member of the Energy division at OFFIS. Her current research focus lies on assessment of sustainable resource management in relation to the assessment of materials needed for renewable energies and sustainable transportation. She is a lecturer in Bioenergy for the international masters program “Postgraduate Programme Renewable Energy (PPRE)” at Oldenburg University. Since October 2015 she is also the head of the Steinbeis Transfercentre Resource. Since 2018 Alexandra is external evaluator for the EU Horizon 2020 research program. With her research on sustainable car parts decision making she won the Raw Material Efficiency Award 2018 from the German Government BMWi.

+49 441 9722-712



OFFIS - Institut für Informatik
Escherweg 2
26121 Oldenburg

of Dr. Ing. Alexandra Pehlken


Digital Twins: Enhancing Circular Economy through Digital Tools

Pehlken, A., Davila, M.F., Dawel, L., Meyer, O.; 05 / 2024


Das Dilemma von Druckluft und Leckagen

Lisa Dawel, ALexandra Pehlken; Industrie 4.0 Management; Februar / 2023

Mittelstand 4.0-Kompetenzzentrum Bremen

Daniel Schneider, Janina Kovacs, Stefan Wiesner, Markus Knak, Michael Teucke, Alexandra Pehlken, Patrick Knocke, Sven MattheisFlorian Borgwardt, Quynh Duong Phuong; September / 2023

Sustainability Digital Twin: a tool for the manufacturing industry

Maria Davila, Fenja Schwark, Lisa Dawel, Alexandra Pehlken; Procedia CIRP; Vol 116 / 2023

“Scale without mass”: A decision-making tool for scaling remanufacturing practices in the white goods industry

Claudia Franzè and Danilo Pesce and Matthias Kalverkamp and Alexandra Pehlken; Journal of Cleaner Production; July / 2023


Digitale Nachhaltigkeit im Nordwesten

Ekwaro-Osire, Henry; Pehlken, Alexandra; Mittelstand-Digital Magazin Wissenschaft trifft Praxis - Sonderausgabe Nachhaltigkeit; Mai / 2022

How can machine learning improve waste-to-energy plant operation

Alexandra Pehlken, Henriette Garmatter, Lisa Dawel, Fabian Cyris, Hendrik Beck, Fenja Schwark, Roland Scharf, Astrid Nieße; ICE IEEE; 2022

Mit Künstlicher Intelligenz zu nachhaltigen Geschäftsmodellen – Nachhaltigkeit von, durch und mit KI

Boll, S., Schnell, M., Dowling, M., Faisst, W., Mordvinova, O, Pflaum, A., Rabe, M., Veith, E., Niesse, A., Gülpen, C., Terzidis, O., Riss, U., Eckerle, C., Manthey, S., Pehlken, A., Zielinski, O.; Februar / 2022

Quantifying the Environmental Impacts of Battery Electric Vehicles from a Criticality Perspective

Penaherrera, Fernando; Davila, Maria; Pehlken, Alexandra; Koch, Björn; Juni / 2022

The application of image recognition methods to improve the performance of waste-to-energy plants

Fenja Schwark, Henriette Garmatter, Maria Davila, Lisa Dawel, Alexandra Pehlken, Fabian Cyris, Roland Scharf; EnviroInfo 2022; 09 / 2022



AI enabled bio waste contamination-scanner

Stahl, F. , Ferdinand, O., Nolle, L., Pehlken, A. and Zielinski, O.; 41. SGAI International Conference on Artificial Intelligence; 12 / 2021

Einsatz von Künstlicher Intelligenz in der Digitalisierung von Abfallverbrennungskraftwerken

Alexandra Pehlken, Patrick Eschemann, Henriette Garmatter, Fabian Cyris, Astrid Nieße; INFORMATIK 2021 - Computer Science & Sustainability; 09 / 2021

How to Measure Criticality in Environmental Impact Assessments?

Peñaherrera, F., Pehlken, A. & Koch, B.; -ProMETS- Workshop 2021; März / 2021

Influence of Material Selection and Product Design on Automotive Vehicle Recyclability

Xiaohui He, Dongmei Su, Wenchao Cai, Alexandra Pehlken, Guofang Zhang, Aimin Wang, Jinsheng Xiao ; Sustainability; 03 / 2021

No more flat tires: Overcoming data defects to achieve supply chain resilience

Alexandra Pehlken, Sabine Baumann; IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC) 2021; June / 2021

Softwarearchitektur für die Bewertung des Ressourcenbedarfes in Rechenzentren durch ganzheitliche Ressourceneffizienz

Fernando Penaherrera, Alexandra Pehlken, Ralph Hintemann, Simon Hinterholzer, Björn Koch; Informatik 2021; September / 2021

What do we really know about critical raw material impact?

Peñaherrera, F. & Pehlken, A. ; LCM2021; September / 2021



Impacts of life cycle inventory databases on life cycle assessments: A review by means of a drivetrain case study

Matthias Kalverkamp, Eckard Helmers, Alexandra Pehlken; Journal of Cleaner Production; 10 / 2020

More Sustainable Bioenergy by Making Use of Regional Alternative Biomass?

Alexandra Pehlken, Kalle Wulf, Kevin Greksch, Thomas Klenke, Nina Tsydenova; Sustainability; 09 / 2020

The Material Basis of Energy Transitions

Alena Bleicher, Alexandra Pehlken (Eds); 08 / 2020

Urban Mining: Applying Digital Twins for Sustainable Product Cascade Use

Prof. Dr. Sabine Baumann, Dr. Alexandra Pehlken; 2020

Urban Mining: Applying Digital Twins for Sustainable Product Cascade Use

Prof. Dr. Sabine Baumann, Dr. Alexandra Pehlken; 2020 IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC); 09 / 2020


Criticality and LCA – Building comparison values to show the impact of criticality on LCA

Koch, B.,Peñaherrera, F., Pehlken, A. ; European Journal of Sustainable Development; 10 / 2019

Gebrauchte Autoteile im Kreislauf

Pehlken, Alexandra; UmweltMagazin; 06 / 2019

Reuse, Recycling and Recovery of End-of-Life new energy vehicles in China

Han, W., Shi, Y., Pehlken, A., Zhang G., Sui, P-C., Xiao, J; Cascade Use in Technologies - Internationale Konferenz zur Kaskadennutzung und Kreislaufwirtschaft – Oldenburg 2018; 2019

Visual similarity to aid alternative-use concept generation for retired wind-turbine blades

E. Kwon, A. Pehlken, K.-D. Thoben, A. Bazylak, L.H. Shu; Journal of Mechanical Design; 03 / 2019


Decision making and software solutions with regard to waste management

Clayton, B.; Kalverkamp, M.; Pehlken, A. ; Journal of Cleaner Production; 12 / 2018


Cascade Use and the Management of Product Lifecycles

Kalverkamp, M.; Pehlken, A.; Wuest, Th.; Sustainability; 08 / 2017

Is there a resource constraint related to lithium ion batteries in cars?

Pehlken, A., Albach S., Vogt, T.; International Journal of Life Cycle Assessment; 01 / 2017

Preface for the Special Issue “Assessing and Managing Life Cycles of Electric Vehicles

Pehlken, A.; Young, S.B. ; Chen, M.; International Journal of Life Cycle Assessment ; 01 / 2017


Challenges in automotive fuel cells recycling

Wittstock, R., Pehlken, A., Wark, M.; Recycling; 01 / 2016

of Dr. Ing. Alexandra Pehlken



Abfallverbrennungskessel 4.0 - Digitalisierung und ganzheitliche Betriebscharakterisierung von Dampferzeugern in Abfallverbrennungskraftwerken

Duration: 2020 - 2023



Circular Integration of independent Reverse supply Chains for the smart reUse of IndusTrially relevant Semiconductors

Duration: 2023 - 2025



Edge Datenwirtschaft in der nachhaltigen automatisierten Fertigungswirtschaft

Duration: 2022 - 2025



Großkomponentenproduktion - Ressourcen- und Energieeffizient

Duration: 2021 - 2023