Overview
Personal Profile
Julien Walzberg is a researcher within NLR’s Strategic Energy Analysis Center where he works on various circular economy and sustainability projects.
Research Interests
Agent-based modeling
Life cycle assessment
Sustainability analysis and circular economy
Professional Experience
Life Cycle Assessment Consultant, CT Consultant (2018–2019)
Project Engineer, Compagnie de Chauffage Intercommunale de l’Agglomération Grenobloise (2013–2014)
Education/Academic Qualification
PhD, Chemical Engineering, Polytechnique Montreal
Master, Materials Engineering, Université de technologie de Troyes
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Collaborations and Top Research Areas From the Past 5 Years
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Addressing Adoption Barriers and Accelerating Market Deployment of New Technologies
Avery, G., Bhatt, A., Upasani, S., Walzberg, J., Fernandes Tomon Avelino, A., DesVeaux, J., Pham, J. & Carpenter, A., 2025, In: RSC Sustainability. 3, 4, p. 1830-1847 18 p.Research output: Contribution to journal › Article › peer-review
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Circularity Futures Workshop Series: Summary Report
Walzberg, J., Khalifa, S., Sharma, M., Dean, W., Wachs, L., Avelino, A., Upasani, S., Ghosh, T., Hanes, R., Eberle, A. & Carpenter, A., 2025, 42 p.Research output: NLR › Technical Report
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Recycling Wind Energy Systems in the United States Part 1: Providing a Baseline for America's Wind Energy Recycling Infrastructure for Wind Turbines and Systems: U.S. Department of Energy (DOE)
Christoffel, T., Khalifa, S., Berry, D., Lee Ennis, B., Wang, P., Marquis, M., Sproul, E., Das, S., Alnaggar, M., Brooks, A., Korey, M., Jackson, A., Eberle, A., Oteri, F., Walzberg, J., Kreider, M., Paranthaman, P., Kemp, J., Wang, H. & Atkins, C. & 1 others, , 2025, 140 p.Research output: NLR › Technical Report
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Advancing Environmental Assessment of the Circular Economy: Challenges and Opportunities: Article No. 200203
Ravikumar, D., Keoleian, G., Walzberg, J., Heath, G. & Heller, M., 2024, In: Resources, Conservation and Recycling Advances. 21, 14 p.Research output: Contribution to journal › Article › peer-review
19 Scopus Citations -
Circular Economy Contributions to Decarbonizing the US Steel Sector
Walzberg, J. & Carpenter, A., 2024, Technology Innovation for the Circular Economy: Recycling, Remanufacturing, Design, Systems Analysis and Logistics. Nasr, N. (ed.). p. 725-738Research output: Chapter in Book/Report/Conference proceeding › Chapter
Awards and Honors
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NREL Director’s Award
Choi, H. (Recipient), Walzberg, J. (Recipient), Arellano Trevino, M. (Recipient), Shankari, K. (Recipient), McNeary, W. (Recipient), Choi, H. (Recipient) & Wu, C. (Recipient), 2021
Prize: Honorary award