Education

2016 - 2019	Doctoral student at ITAS (research field: Water-Energy Nexus), scholar of the fellowship programme Energy Systems and Resource Efficiency (ENRES)
2016	Qualification as coordinator for climate protection and resource management at the Association for Sustainable Development (GNE)
2010 - 2015	University of Heidelberg; State Examination in Geography, Spanish, English Final thesis: Sustainability assessment of the Chilean Water Code (“El Código de Aguas de Chile: Entre los Dictados del Mercado y la Necesidad de Sostenibilidad”) Study stays abroad: Bristol, Buenos Aires, Ladakh

Professional background

since 2016	Member of scientific staff at ITAS
2015 - 2016	Deutsche Gesellschaft für internationale Zusammenarbeit (GIZ), Sustainable Sanitation Alliance (SuSanA)

Publikationen

2021

Journal Articles

Poganietz, W.-R.; Friedrich, J.; Lehn, H.
Eco-efficiency of system alternatives of the urban Water-Energy-Waste Nexus
2021. NachhaltigkeitsManagementForum = Sustainability Management Forum, 29, 119–131. doi:10.1007/s00550-021-00517-5

2020

PhD Theses

Friedrich, J.
Nachhaltigkeitsbewertung von Systemalternativen zur Transformation des Wasser-Energie-Nexus im städtischen Gebäudebestand. PhD dissertation
2020, December 2. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000126918

Journal Articles

Friedrich, J.; Poganietz, W. R.; Lehn, H.
Life-cycle assessment of system alternatives for the Water-Energy-Waste Nexus in the urban building stock
2020. Resources, conservation and recycling, 158 (104808), Art. Nr.: 104808. doi:10.1016/j.resconrec.2020.104808

2018

Conference Papers

Lehn, H.; Steiner, F.; Friedrich, J.; Araya Valenzuela, D.
The challenge of transforming urban supply and disposal infrastructures to more resonance and energy efficiency
2018. Proceedings der 23. internationalen Konferenz zu Stadtplanung und Regionalentwicklung in der Informationsgesellschaft (REAL CORP 2018), Wien, A, April 4-6, 2018. Hrsg.: M. Schrenk, 681–688, Competence Center of Urban and Regional Planning (CORP)

Presentations

Friedrich, J.; Poganietz, W.; Lehn, H.; Melkonyan, A.; Withanachchi, S.; Köpke, S.; Ploeger, A.; Krumme, K.
Challenges of the water-energy-food Nexus
2018. 3rd German Future Earth Summit (2018), Berlin, Germany, February 8–9, 2018

Friedrich, J.; Poganietz, W.-R.; Lehn, H.
Life cycle assessment of the water-energy nexus in the urban building stock: The case of Heidelberg, Germany
2018. EcoBalance (2018), Tokyo, Japan, October 9–12, 2018

Lehn, H.; Steiner, F.; Friedrich, J.; Araya Valenzuela, D.
The challenge of transforming urban supply and disposal infrastructures to more resonance and energy efficiency
2018. 23. Internationale Konferenz zu Stadtplanung und Regionalentwicklung in der Informationsgesellschaft (REAL CORP 2018), Vienna, Austria, April 4–6, 2018

2017

Presentations

Friedrich, J.; Steiner, F.; Weiss, A.; Lehn, H.
Experience different perspectives on the urban water-energy nexus
2017. Chair auf dem Workshop der SIWI World Water Week (2017), Stockholm, Sweden, August 28, 2017

Friedrich, J.; Steiner, F.; Weiss, A.; Lehn, H.
Experience different perspectives on the urban water-energy nexus! Introduction
2017. SIWI World Water Week, Stockholm, S, August 27 - September 1, 2017

Weiss, A.; Steiner, F.; Friedrich, J.
Interdisciplinary approaches to assess and model the urban water-energy nexus
2017. Workshop “Interdisciplinary approaches to assess and model the urban water-energy nexus” (2017), Karlsruhe, Germany, July 31–August 1, 2017