René Itten MSc ETH

Work at ZHAW

Position

Senior Researcher and Lecturer Life Cycle Assesment Research Group

Focus

• Life Cycle Inventory Modelling and LCA Databases
• Environmentally-extended Input-Output Analysis
• Life Cycle Impact Assessment Methodology
• Production and Transmission of Electricity and Heat
• Photovoltaic Supply Chain

Teaching

• Lead of Module Advanced Life Cycle Assessment, MSc ENR
• Lead of Module Sustainability Assessment, BSc Environmental Engineering
• Modul nachwachsende Rohstoffe (BSc Environmental Engineering)

Professional development teaching

CAS The Science and Art of Coffee

Experience

• Research Associate
  Life Cycle Assessment Research Group, Zurich University of Applied Sciences
  01 / 2017 - 07 / 2024
• Research Associate
  Life Cycle Assessment Specialist Group, Zurich University of Applied Sciences
  08 / 2015 - 12 / 2016
• Project Manager Life Cycle Assessment (LCA)
  treeze Ltd.
  2012 - 2014
• Project Manager Life Cycle Assessment (LCA)
  ESU-Services Ltd.
  2010 - 2012

Education and Continuing education

Education

• Master of Science (MSc) / Environmental Engineering
  Swiss Federal Institute of Technology (ETH)
  2008 - 2010
• Bachelor of Science (BSc) / Environmental Engineering
  Swiss Federal Institute of Technology (ETH)
  2005 - 2008

Continuing Education

CAS University Didactics
Zurich University of Teacher Education (PHZH)
2019

Network

ORCID digital identifier

ORCID ID: 0000-0003-4253-9226

Social media

LinkedIn

Media presence

Consumer magazine "Kassensturz" Swiss Radio and Television (SRF)

Projects

• Fostering Biodiversity Footprint Management Along Value Chains / Deputy project leader / laufend
• Digitising Environmental Impacts using Geospatial Analytics / Team member / laufend
• Updated Life Cycle Inventories Data of Wind Power / Deputy project leader / laufend
• Spatial sustainable finance: Satellite-based ratings of company footprints in biodiversity and water / Team member / laufend
• Multifuel SOFC system with Maritime Energy Vectors / Project leader / laufend
• LOFT – Local food for the future / Team member / laufend
• BioVaR – Assessing and Digitizing Risk Exposure Resulting from Biodiversity Loss / Co-project leader / abgeschlossen
• Life Cycle Inventories of solid fossil fuels / Project leader / abgeschlossen
• Remote Sensing Metrics for Life Cycle Assessment (RSM4LCA) / Project leader / abgeschlossen
• Environmental and Social Assessment at Mine Sites using Remote Sensing and Geoinformatics / Team member / abgeschlossen
• ShopHero / Deputy project leader / abgeschlossen
• Life Cycle Sustainability Assessment (LCSA) / Project leader / abgeschlossen
• Extending the lifespan of mobile devices / Team member / abgeschlossen
• BIOMAT (Integrated Bio-based Materials Value Chains) / Team member / abgeschlossen
• Assessment of mineral oil tax relief for synthetic fuels from biological methanation / Deputy project leader / abgeschlossen
• The Coffee Blockchain – From Field to Cup / Project leader / abgeschlossen
• Validation of crude and mineral oil life cycle inventory datasets / Deputy project leader / abgeschlossen
• Regionalised Agricultural Life Cycle Assessment / Project leader / abgeschlossen
• SHAREBOX – Secure Management Platform for Shared Process Resources / Team member / abgeschlossen
• EAT-IT / Team member / abgeschlossen
• PV2050: Sustainability, market deployment and interaction to the grid – the impacts of advanced PV solutions / Team member / abgeschlossen
• Robust and affordable process control technologies for improving standards and optimising industrial operations (ProPAT) / Team member / abgeschlossen
• ZHAW Agri-food Database / Team member / abgeschlossen

Publications

• Frehner, Alena; Stucki, Matthias; Itten, René,

  2024.

  Are alpine floatovoltaics the way forward? : life-cycle environmental impacts and energy payback time of the worlds’ first high-altitude floating solar power plant.

  Sustainable Energy Technologies and Assessments.

  68(103880).

  Available from: https://doi.org/10.1016/j.seta.2024.103880

• Kröhnert, Hanna; Itten, René; Stucki, Matthias,

  2022.

  Comparing flexible and conventional monolithic building design : life cycle environmental impact and potential for material circulation.

  Building and Environment.

  2022(222), pp. 109409.

  Available from: https://doi.org/10.1016/j.buildenv.2022.109409

• Bieser, Jan C.T.; Blumer, Yann; Burkhalter, Linda; Itten, René; Jobin, Marilou; Hilty, Lorenz M.; et al.,

  2022.

  Consumer-oriented interventions to extend smartphones’ service lifetime.

  Cleaner and Responsible Consumption.

  7(100074).

  Available from: https://doi.org/10.1016/j.clrc.2022.100074

• Itten, René; Hischier, Roland; Andrae, Anders S. G.; Bieser, Jan C. T.; Cabernard, Livia; Falke, Annemarie; Ferreboeuf, Hugues; Hilty, Lorenz M.; Keller, Regula; Lees-Perasso, Etienne; Preist, Chris; Stucki, Matthias; et al.,

  2020.

  Digital transformation - life cycle assessment of digital services, multifunctional devices and cloud computing.

  The International Journal of Life Cycle Assessment.

  25(10), pp. 2093-2098.

  Available from: https://doi.org/10.1007/s11367-020-01801-0

• Itten, René; Stucki, Matthias,

  2017.

  Highly efficient 3rd generation multi-junction solar cells using silicon heterojunction and perovskite tandem : prospective life cycle environmental impacts.

  Energies.

  10(7), pp. 1-18.

  Available from: https://doi.org/10.3390/en10070841

• Kuroda, Keisuke; Itten, René; Kovalova, Lubomira; Ort, Christoph; Weissbrodt, David G.; McArdell, Christa S.,

  2016.

  Hospital-use pharmaceuticals in Swiss waters modeled at high spatial resolution.

  Environmental Science & Technology.

  50(9), pp. 4742-4751.

  Available from: https://doi.org/10.1021/acs.est.6b00653

• Götz, Michael; Stucki, Matthias; Itten, René,

  2023.

  Environmental impacts of railway tunnel construction & operation : tunnel cross-section vs. traction energy demand [poster].

  In:

  11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.

  Wädenswil:

  ZHAW Zurich University of Applied Sciences.

  Available from: https://doi.org/10.21256/zhaw-30527

• Frehner, Alena; Itten, René,

  2023.

  Life cycle assessment of bio-based materials : environmental impacts of the value chain from cyanobacteria to PHB [poster].

  In:

  11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.

  Wädenswil:

  ZHAW Zurich University of Applied Sciences.

  Available from: https://doi.org/10.21256/zhaw-30499

• Chryssolouris, Dimitri; Itten, René; Regula, Keller; Stucki, Matthias,

  2023.

  Life cycle sustainability assessment of a biorefinery for the valorisation of brewer's spent grain [poster].

  In:

  11th International Conference on Life Cycle Management (LCM), Lille, France, 6-7-8 September 2023.

  Wädenswil:

  ZHAW Zurich University of Applied Sciences.

  Available from: https://doi.org/10.21256/zhaw-30535

• Jattke, Marleen; Bieser, Jan; Blumer, Yann; Itten, René; Stucki, Matthias,

  2020.

  Environmental implications of service life extension of mobile devices [paper].

  In:

  Otto, S. J.; Korf, N.; Mählitz, P. M.; Rotter, V. S., eds.,

  WEEE plastic characterization and recyclability assessment : a case study for household appliances.

  Electronics Goes Green 2020+, Online, 1. September 2020.

  Berlin:

  Fraunhofer IZM.

  pp. 163-170.

  Available from: https://doi.org/10.21256/zhaw-20808

• Jaisli, Isabel; Bättig-Frey, Petra; Itten, René; Stucki, Matthias,

  2018.

  Scientainment for sustainability : the eco-confessional as new approach for awareness raising [poster].

  In:

  1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.

• Keller, Regula; Itten, René; Stucki, Matthias,

  2018.

  Environmental benefits of a circular economy : connecting waste type and geographic proximity [poster].

  In:

  SETAC Europe 28th annual meeting, Rome, Italy, 13-17 May 2018.

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-5015

• Stucki, Matthias; Keller, Regula; Itten, René; Eymann, Lea,

  2018.

  Filling the Gap of Overfishing in LCIA: Eco-factors for Global Fish Resources [poster].

  In:

  SETAC Europe 28th annual meeting, Rome, Italy, 13-17 May 2018.

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-5017

• Frischknecht, Rolf; Bauer, Christian; Bucher, Christof; Ager-Wick Ellingsen, Linda; Gutzwiller, Lukas; Heimbach, Britta; Itten, René; Liao, Xun; Panos, Evangelos; Pfister, Stephan; Schmidt, Tobias; Stahel, Valentin; Stolz, Philippe; Toggweiler, Peter; Treyer, Karin; Villeneuve, Jacques; Wade, Andreas; Weil, Marcel,

  2018.

  LCA of key technologies for future electricity supply : 68th LCA forum, Swiss Federal Institute of Technology, Zurich, 16 April, 2018 [paper].

  In:

  68th LCA Discussion Forum on Life Cycle Assessment, Zürich, 16. April 2018.

  Heidelberg:

  Springer.

  pp. 1716-1721.

  Available from: https://doi.org/10.1007/s11367-018-1496-y

• Stucki, Matthias; Itten, René,

  2017.

  High efficient 3rd generation multi-junction solar cells using silicon heterojunction and perovskite technology : life cycle based environmental impacts [poster].

  In:

  Life Cycle Management (LCM) 2017, Luxembourg, 3.-6. September 2017.

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-4833

• Itten, René; Stucki, Matthias; Steinegger, Tobias,

  2017.

  Wooden mounting systems : how to reduce environmental impacts of building integrated photovoltaic power plants [poster].

  In:

  Life Cycle Management (LCM) 2017, Luxembourg, 3.-6. September 2017.

• Frischknecht, Rolf; Bauer, Christian; Froemelt, Andreas; Hellweg, Stefanie; Biemann, Kirsten; Buetler, Thomas; Cox, Brian; de Haan, Peter; Hoerl, Sebastian; Itten, René; Jungbluth, Niels; Ligen, Yorick; Mathys, Nicole A.; Schiess, Samuel; Schori, Salome; van Loon, Patricia; Wang, Jing; Wettstein, Sarah,

  2017.

  LCA of mobility solutions: approaches and findings : 66th LCA forum, Swiss Federal Institute of Technology, Zurich, 30 August, 2017 [paper].

  In:

  66th LCA Discussion Forum: LCA of Mobility Solutions: Approaches and Findings, Zürich, 30. August 2017.

  Heidelberg:

  Springer.

  pp. 381-386.

  Available from: https://doi.org/10.1007/s11367-017-1429-1

• Koller, Christoph; Stucki, Matthias; Mathez, Stephan A.; Itten, René; Frei, Sabine,

  2016.

  Carbon footprint of a PV/T liquid collector [paper].

  In:

  26. Symposium Thermische Solarenergie : 20. bis 22. April 2016, Kloster Banz, Bad Staffelstein.

  26. Symposium Thermische Solarenergie, Bad Staffelstein, Deutschland, 20.-22. April 2016.

  Bad Staffelstein:

  Ostbayerisches Technologie-Transfer-Institut.

• Itten, René; Oberschelp, Christopher; Kröhnert, Hanna; Stucki, Matthias,

  2023.

  Life Cycle Inventories of solid fossil fuels : updates for electricity generation from hard coal, lignite and peat.

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-30218

• Keller, Regula; Stucki, Matthias; Itten, René,

  2023.

  Projekt Digitale Suffizienz : Ökobilanzbericht zur Nutzung digitaler Geräte durch Jugendliche in der Schweiz.

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-26925

• Frehner, Alena; Itten, René; Stucki, Matthias,

  2022.

  Life cycle assessment of bio-based materials : environmental impacts of the value chain from cyanobacteria to PHB.

  Schriftenreihe Erneuerbare Energien, Bodenökologie, Ökobilanzierung, Ökotechnologie und Aquakultur

  .

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-26461

• Itten, René; Stucki, Matthias,

  2022.

  Ökofaktoren für marine Fischressourcen in Ökobilanzen.

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-2650

• Gassmann, Roland; Itten, René,

  2022.

  Kundenbindung durch Blockchain : führen mehr Transparenz und mehr Möglichkeiten zur Mitbestimmung zu einer verstärkten Kundenbindung?.

  Logistics Innovation.

  2021(2), pp. 10-13.

  Available from: https://doi.org/10.21256/zhaw-24790

• Lütolf, Patrick; Itten, René,

  2022.

  CoffeeCoin macht Kaffee transparenter.

  Foodaktuell.

  1, pp. 30-31.

  Available from: https://www.foodaktuell.ch/2021/12/16/coffeecoin-macht-kaffee-transparenter

• Itten, René; Stucki, Matthias; Glauser, Lukas,

  2021.

  Life cycle assessment of artificial and natural turf sports fields : executive summary.

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-21510

• Bionda, Davide; Settembrini, Gianrico; Domingo, Silvia; Zeifang, Heike; Itten, René; Stucki, Matthias,

  2021.

  SYGREN : Systemkennwerte Graue Energie Gebäudetechnik.

  Bern:

  Bundesamt für Energie BFE.

  Available from: https://www.aramis.admin.ch/Default?DocumentID=67175&Load=true

• Itten, René; Glauser, Lukas; Stucki, Matthias,

  2020.

  Ökobilanzierung von Rasensportfeldern : Natur-, Kunststoff- und Hybridrasen der Stadt Zürich im Vergleich.

  Wädenswil:

  ZHAW Zürcher Hochschule für Angewandte Wissenschaften.

  Available from: https://doi.org/10.21256/zhaw-20774

• Stucki, Matthias; Itten, René,

  2018.

  Power-to-Gas für den Klimaschutz : wie umweltfreundlich ist synthetisches Methan?.

  Aqua & Gas.

  9, pp. 15-19.

• Frischknecht, Rolf; Itten, René; Wyss, Franziska; Blanc, Isabelle; Heath, Garvin; Raugei, Marco; Sinha, Parikhit; Wade, Andreas,

  2015.

  Life cycle assessment of future photovoltaic electricity production from residential-scale systems operated in Europe.

  St.Ursen:

  International Energy Agency Photovoltaic Power Systems Programme (IEA-PVPS).

  ISBN 978-3-906042-30-5.

  Available from: http://iea-pvps.org/index.php?id=314&eID=dam_frontend_push&docID=2391

• Frischknecht, Rolf; Itten, René; Sinha, Parikhit; de Wild-Scholten, Mariska; Zhang, Jia; Fthenakis, Vasilis; Kim, Hyung Chul; Raugei, Marco; Stucki, Matthias,

  2015.

  Life cycle inventories and life cycle assessment of photovoltaic systems.

  International Energy Agency (IEA) PVPS Task 12.

  ISBN 978-3-906042-28-2.

  Available from: http://www.iea-pvps.org/fileadmin/dam/public/report/technical/IEA-PVPS_Task_12_LCI_LCA.pdf

• Götz, Michael; Itten, René,

  2024.

  Biodiversity footprints of EV battery technologies : comparing the biodiversity impacts of mineral & metal mining.

  In:

  4th Life Cycle Innovation Conference (LCIC), Berlin, Germany (hybrid), 3 - 5 July 2024.

• Itten, René; Götz, Michael; Kröhnert, Hanna,

  2023.

  Remote sensing based data products for large scale life cycle inventory models.

  In:

  11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.

• Frehner, Alena; Itten, René; Stucki, Matthias,

  2023.

  Decarbonizing maritime shipping : life cycle sustainability assessment of a multi-fuel capable propulsion system based on solid oxide fuel cell technology.

  In:

  11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.

• Götz, Michael; Itten, René; Orpiszewski, Tomasz; Hauser, Leon; Laube, Patrick,

  2023.

  Life cycle approaches for biodiversity impacts of mining and resource extraction : combining remote sensing and life cycle assessment.

  In:

  World Resources Forum, Geneva, Switzerland, 4-6 September 2023.

• Burkhalter, Linda; Itten, René,

  2023.

  Ein längeres Leben für Smartphones & Co.

  In:

  ZHAW sustainable Lunch, online, 24. April 2023.

• Itten, René; Kägi, Thomas,

  2022.

  Life cycle assessment of artificial turf : importance of microplastics.

  In:

  82nd Cycle Assessment Discussion Forum (LCA DF), Zurich, Switzerland, 4 November 2022.

  Available from: https://lca-forum.ch/fileadmin/generic_lib/Resources/Public/Downloads/DF82/11_Itten.pdf

• Itten, René; Jattke, Marleen; Bieser, Jan,

  2022.

  Repair services and their rebound effects.

  In:

  81st Life Cycle Assessment Discussion Forum (LCA DF), Wädenswil, Switzerland, 15 September 2022.

• Itten, René; Glauser, Lukas; Stucki, Matthias,

  2022.

  Artificial versus natural turf sports fields : life cycle environmental impacts.

  In:

  INUAS Conference 2022 "Urban Transformations: Public Spaces", Winterthur, Switzerland, 7-9 September 2022.

• Itten, René; Jattke, Marleen; Bieser, Jan,

  2022.

  Minimising rebound effects of lifetime extension : sustainable business models for mobile, internet-enabled devices.

  In:

  3rd Life Cycle Innovation Conference (LCIC), Berlin, Germany (hybrid), 29 June - 1 July 2022.

• Itten, René; Glauser, Lukas; Stucki, Matthias,

  2022.

  Life cycle assessment of turf sports fields.

  In:

  Europe, Middle East and Africa Synthetic Turf Council (ESTC) Congress, Nice, France, 31 March 2022.

• Itten, René; Jattke, Marleen; Bieser, Jan; Stucki, Matthias,

  2021.

  Direct and indirect environmental effects of service lifetime extension of mobile internet enabled devices.

  In:

  10th International Conference on Life Cycle Management (LCM), virtual, 5-8 September 2021.

  Available from: https://lcm2021-media.org/document/direct-and-indirect-environmental-effects-of-service-lifetime-extension-of-mobile-internet-enabled-devices/

• Jattke, Marleen; Itten, René; Stucki, Matthias; Ortiz Perez, Carlos Manuel; Kanyange, Nadine,

  2021.

  Using blockchain to change the way we manage life cycle data for coffee supply chains.

  In:

  10th International Conference on Life Cycle Management (LCM), virtual, 5-8 September 2021.

  Available from: https://lcm2021-media.org/document/using-blockchain-to-change-the-way-we-manage-life-cycle-data-for-coffee-supply-chains/

• Itten, René; Sabina, Manatschal; Stucki, Matthias; Brottier, Laetitia,

  2020.

  Merging photovoltaic panels and solar thermal collectors : how photovoltaic thermal (PVT) hybrid collectors boost environmental performance.

  In:

  37th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Online, 7-11 September 2020.

• Itten, René; Jattke, Marleen; Stucki, Matthias; Lütolf, Patrick; Gassmann, Roland; et al.,

  2020.

  Blockchain in agro-food business : boosting transparency and trust in the coffee value chain with distributed ledgers.

  In:

  2nd Life Cycle Innovation Conference (LCIC), Online, 26-28 August 2020.

• Jattke, Marleen; Itten, René; Stucki, Matthias; Keller, Regula,

  2020.

  Environmental implications caused by disruptive business models for service life extension of mobile devices.

  In:

  2nd Life Cycle Innovation Conference (LCIC), Online, 26-28 August 2020.

• Jattke, Marleen; Itten, René; Stucki, Matthias,

  2020.

  Sustainable business models to extend the lifetime of mobile internet-enabled devices.

  In:

  74th LCA Discussion Forum on Life Cycle Assessment, online, 29 June 2020.

• Itten, René; Stucki, Matthias; Clua Longas, Angela; Cattaneo, Gianluca,

  2019.

  Active façades : life cycle environmental impacts and savings of photovoltaic power plants integrated into the building envelope.

  In:

  36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Marseille, France, 9-13 September 2019.

• Itten, René; Stucki, Matthias; Clua Longas, Angela; Cattaneo, Gianluca,

  2019.

  Active façades : life cycle environmental impacts and savings of photovoltaic power plants integrated into the building envelope.

  In:

  9th International Conference on Life Cycle Management, Poznan, Poland, 1-4 September 2019.

• Stahel, Valentin; Itten, René; Stucki, Matthias,

  2018.

  Integration of photovoltaic power plants into the grid : life cycle environmental impacts of infrastructure adaptations for photovoltaic electricity.

  In:

  35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Brussels, Belgium, 24-27 September 2018.

  Available from: https://userarea.eupvsec.org/proceedings/35th-EU-PVSEC-2018/5EO.1.5/

• Itten, René; Keller, Regula; Stucki, Matthias,

  2018.

  The Generation Z and the environmental impact of their digital media behaviour.

  In:

  1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.

• Itten, René; Stucki, Matthias,

  2018.

  Transformation of waste to resources : life cycle based benefits of the circular economy.

  In:

  1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.

• Itten, René; Stucki, Matthias,

  2018.

  Highly efficient multi-junction solar cells using silicon heterojunction and perovskite tandem : prospective life cycle environmental impacts.

  In:

  68th LCA Discussion Forum on Life Cycle Assessment, Zürich, 16. April 2018.

  Available from: http://www.lcaforum.ch/portals/0/df68/DF68-12_Itten.pdf

• Wettstein, Sarah; Itten, René; Stucki, Matthias,

  2017.

  Environmental impacts of the CO2 methanation value chain : implications on mobility with passenger cars.

  In:

  66th LCA Discussion Forum: LCA of Mobility Solutions: Approaches and Findings, Zürich, 30. August 2017.

  Available from: http://www.lcaforum.ch/portals/0/df66/DF66-13_Itten.pdf

• Itten, René,

  2016.

  Industrial symbiosis and LCA.

  In:

  63rd LCA Discussion Forum: How can LCA support the Circular Economy?, Zurich, 30 November 2016.

Publications before appointment at the ZHAW

• Frischknecht R., Nathani C., Stolz P., Wyss F. and Itten R. (2015) Extension of a Disaggregated Input-Output Table with Environmental Data for the Year 2008. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R., Nathani C., Büsser Knöpfel S., Itten R., Wyss F. and Hellmüller P. (2014) Entwicklung der weltweiten Umweltauswirkungen der Schweiz; Umweltauswirkungen von Konsum und Produktion von 1996 bis 2011. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R., Nathani C., Büsser Knöpfel S., Itten R., Wyss F. and Hellmüller P. (2014) Technischer Bericht Gesamtumweltbelastung Schweiz. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R. and Itten R. (2014) PEFCR photovoltaic electricity generation. treeze Ltd. commissioned by Technical Secretariat PEF Pilot "Photovoltaic Electricity Generation", Uster, Switzerland.
• Itten R., Wyss F. and Frischknecht R. (2014) LCI of the global crystalline photovoltaics supply chain and of future photovoltaics electricity production. treeze Ltd., Uster, Switzerland.
• Itten R., Frischknecht R. and Stucki M. (2014) Life Cycle Inventories of Electricity Mixes and Grid, Version 1.3. treeze Ltd., Uster, Switzerland, retrieved from: www.treeze.ch.
• Itten R. and Frischknecht R. (2014) Primärenergiefaktoren von Energiesystemen, Version 2.2+, Stand April 2014. Im Auftrag des Bundesamt für Umwelt BAFU und der Koordinationskonferenz der Bau- und Liegenschaftsorgane der öffentlichen Bauherren KBOB, Uster, CH, retrieved from: www.treeze.ch.
• Wyss F., Frischknecht R., Itten R., Pfäffli K. and John V. (2014) Richtwert Gesamtumweltbelastung Gebäude - Entwurf. Bundesamt für Energie, BfE Bundesamt für Umwelt BAFU Amt für Hochbauten Stadt Zürich AHB.
• Wyss F., Frischknecht R. and Itten R. (2014) Hintergrundbericht zur Aktualisierung der Materialdaten der KBOB-Liste, v2.2+ Stand 2014. Bundesamt für Umwelt BAFU, Koordinationskonferenz der Bau- und Liegenschaftsorgane der öffentlichen Bauherren KBOB
• Itten R. and Frischknecht R. (2013) Externe Kosten von Energiesystemen gemäss ECOPLAN. treeze Ltd., Uster, CH
• Frischknecht R., Büsser Knöpfel S. and Itten R. (2013) Indicators on Global Environmental Impacts Related to Domestic Consumption. treeze Ltd., Uster, CH.
• Jungbluth N. and Itten R. (2012) Umweltbelastungen des Konsums in der Schweiz und in der Stadt Zürich: Grundlagendaten und Reduktionspotenziale, . Energieforschung der Stadt Zürich, Bericht Nr. 8, Forschungsprojekt FP-1.1, Zürich.
• Jungbluth N., Itten R. and Stucki M. (2012) Umweltbelastungen des privaten Konsums und Reduktionspotenziale. ESU-services Ltd. im Auftrag des BAFU, Uster, CH, retrieved from: http://www.esu-services.ch/projects/lifestyle/.
• Itten R., Jungbluth N. and Stucki M. (2011) Life Cycle Assessment of Burning Different Solid Biomass Substrates. im Auftrag des Bundesamtes für Energie BfE, ESU-services Ltd., Uster, retrieved from: http://www.esu-services.ch/publications/energy/.
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• Frischknecht R., Stucki M. and Itten R. (2011) Primärenergiefaktoren von Transportsystemen, Version 2.2. im Auftrag des Bundesamtes für Energie BfE, ESU-services Ltd., Uster, CH, retrieved from: http://www.esu-services.ch/publications/energy/.

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