Dr. Markus Klenk

Personal profile

Projects

• Performance, Operation & Reliability of Photovoltaic-Systems / Team member / Project ongoing
• Weiterentwicklung eines Zauns mit integriertem Photovoltaiksystem / Deputy project leader / Project ongoing
• PV-EYE – Photovoltaiksysteme auf Flachdächern mit höchsten Energieerträgen pro Fläche / Deputy project leader / Project ongoing
• Entwicklung und vergleichender Test eines Gesamtpakets für bifaziale Photovoltaik-Systeme auf Gründächern / Project co-leader / Project ongoing
• AMBIPV II - Adapted Modules for Bifacial Photovoltaics (Solar Era.net ID78) / Project co-leader / Project ongoing
• Weiterentwicklung Photovoltaik Baukasten / Deputy project leader / Project completed
• U-LIGHT: Ultra lightweight PV modules / Team member / Project completed

Publications

• Chudinzow, Dimitrij; Klenk, Markus; Eltrop, Ludger,

  2020.

  Impact of field design and location on the techno-economic performance of fixed-tilt and single-axis tracked bifacial photovoltaic power plants.

  Solar Energy.

  207, pp. 564-578.

  Available from: https://doi.org/10.1016/j.solener.2020.06.096

• Nussbaumer, Hartmut; Janssen, Gaby; Berrian, Djaber; Wittmer, Bruno; Klenk, Markus; Baumann, Thomas; Baumgartner, Franz; Morf, Marco; Burgers, Antonius; Libal, Joris; Mermoud, André,

  2020.

  Accuracy of simulated data for bifacial systems with varying tilt angles and share of diffuse radiation.

  Solar Energy.

  197, pp. 6-21.

  Available from: https://doi.org/10.1016/j.solener.2019.12.071

• Baumann, Thomas; Nussbaumer, Hartmut; Klenk, Markus; Dreisiebner, Andreas; Carigiet, Fabian; Baumgartner, Franz,

  2019.

  Photovoltaic systems with vertically mounted bifacial PV modules in combination with green roofs.

  Solar Energy.

  190, pp. 139-146.

  Available from: https://doi.org/10.1016/j.solener.2019.08.014

• Nussbaumer, Hartmut; Klenk, Markus; Morf, Marco; Nicolas, Keller,

  2019.

  Energy yield prediction of a bifacial PV system with a miniaturized test array.

  Solar Energy.

  179, pp. 316-325.

  Available from: https://doi.org/10.1016/j.solener.2018.12.042

• Berrian, Djaber; Libal, Joris; Klenk, Markus; Nussbaumer, Hartmut; Kopecek, Radovan,

  2019.

  Performance of bifacial PV arrays with fixed tilt and horizontal single-axis tracking : comparison of simulated and measured data.

  IEEE Journal of Photovoltaics.

  9(6), pp. 1583-1589.

  Available from: https://doi.org/10.1109/JPHOTOV.2019.2924394

• Lang, Margit; Oreski, Gernot; Fuchs, Peter; Helfer, Eric; Halm, Andreas; Klenk, Markus,

  2021.

  FEM simulation of deformations in strings of shingled solar cells under mechanical and thermal loading [poster].

  In:

  Proceedings of the 38th EUPVSEC.

  38th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC), online, 6-10 September 2021.

  München:

  WIP.

  Available from: https://www.eupvsec-proceedings.com/proceedings?fulltext=klenk&paper=49961

• Nussbaumer, Hartmut; Klenk, Markus; Morf, Marco; Meister, Jan; Werner, Dieter,

  2020.

  Miniaturized model kit for yield measurements of PV systems : concept and application [paper].

  In:

  Proceedings of the 2020 47th IEEE Photovoltaic Specialists Conference (PVSC).

  2020 47th IEEE Photovoltaic Specialists Conference (PVSC), Calgary (Canada), 15 June 2020.

  IEEE.

  pp. 1093-1095.

  Available from: https://doi.org/10.1109/PVSC45281.2020.9300554

• Nussbaumer, Hartmut; Klenk, Markus; Libal, Joris; Kopecek, Radovan,

  2019.

  PV systems with lowest LCOE using bifacial modules : state-of-the-art systems and components.

  PV-Tech Power.

  18, pp. 16-27.

• Nussbaumer, Hartmut; Klenk, Markus; Halm, Andreas; Schneider, Andreas,

  2018.

  State-of-the-art bifacial module technology.

  Photovoltaics International.

  2018(41), pp. 108-125.

• Klenk, Markus; Nussbaumer, Hartmut; Veschetti, Yannik; Kopecek, Radovan; Kreiter, Rob; Hildebrandt, Heiko,

  2018.

  Bifacial PV systems and yield data (bifacial gain)

  .

  In:

  Kopecek, Radovan; Libal, Joris, eds.,

  Bifacial photovoltaics : technology, applications and economics.

  Institution of Engineering and Technology.

  pp. 153-214.

• Janssen, G.J.M.; Burgers, A.R.; Binani, A.; Carr, A.J.; Van Aken, B.B.; Romijn, I.G.; Klenk, Markus; Nussbaumer, Hartmut; Baumann, Thomas,

  2018.

  How to maximize the kwh/kwp ratio : simulations of single-axis tracking in bifacial systems [paper].

  In:

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

• Baumann, Thomas; Carigiet, Fabian; Knecht, Raphael; Klenk, Markus; Dreisiebner, Andreas; Nussbaumer, Hartmut; Baumgartner, Franz,

  2018.

  Performance analysis of vertically mounted bifacial PV modules on green roof system [paper].

  In:

  35th European Photovoltaic Solar Energy Conference and Exhibition.

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

  WIP.

  Available from: https://doi.org/10.21256/zhaw-4034

• Nussbaumer, Hartmut; Klenk, Markus; Keller, Nicolas; Heller, Dominic; Käslin, Remo; Baumann, Thomas; Baumgartner, Franz,

  2017.

  Application of shaped reflectors to increase the energy harvest of bifacial PV systems : analyzed with a miniaturized test array [paper].

  In:

  2017 IEEE 44th Photovoltaic Specialist Conference (PVSC 2017) : Proceedings.

  44th IEEE PVSC, Washington D.C., USA, 25-30 June 2017.

  IEEE.

  pp. 1077-1080.

• Baumann, Thomas; Klenk, Markus; Keller, Nicolas; Nussbaumer, Hartmut; Baumgartner, Daniel,

  2017.

  Illumination homogeneity of bifacial systems : outdoor measurements with systematically varied installation conditions : visual [paper].

  In:

  Proceedings of the EU PVSEC 2017.

  33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Amsterdam, Netherlands, 25-29 September 2017.

  pp. 1605-1609.

  Available from: https://doi.org/10.4229/EUPVSEC20172017-5BV.4.28

• Nussbaumer, Hartmut; Klenk, Markus; Keller, Nico; Ammann, Peter; Thurnheer, Jan,

  2017.

  Record-light weight c-Si modules based on the small unit compound approach : mechanical load tests and general results [paper].

  In:

  Proceedings of the 33rd European Photovoltaic Solar Energy Conference and Exhibition.

  33rd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Amsterdam, Netherlands, 25-29 September 2017.

  WIP.

  pp. 146-150.

  Available from: https://doi.org/10.4229/EUPVSEC20172017-1CV.3.69

• Nussbaumer, Hartmut; Petrzilek, Giordano; Schartinger, Steve; Klenk, Markus; Keller, Nico; Baumann, Thomas; Carigiet, Fabian; Baumgartner, Franz,

  2016.

  Influence of low concentration on the energy harvest of PV systems using bifacial modules [paper].

  In:

  Proceedings of the EU PVSEC 2016 (Munich).

  European Photovoltaic Solar Energy Conference and Exhibition 2016, Munich, Germany, 2016.

  WIP.

• Nussbaumer, Hartmut; Petrzilek, Giordano; Schartinger, Steve; Klenk, Markus; Keller, Nico; Baumann, Thomas; Carigiet, Fabian; Baumgartner, Franz,

  2016.

  Miniaturized test array as a means to determine the energy harvest of bifacial installations [poster].

  In:

  IEEE PVSC 2016 : Kongress.

  2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC 2016), Portland, USA, 5-10 June 2016.

  IEEE.

  pp. 2698-2703.

  Available from: https://doi.org/10.1109/PVSC.2016.7750140

• Nussbaumer, Hartmut; Petrzilek, Giordano; Schartinger, Steve; Klenk, Markus; Keller, Nico; Baumann, Thomas; Carigiet, Fabian; Baumgartner, Franz,

  2016.

  Miniaturized test array as a means to determine the energy harvest of bifacial installations [paper].

  In:

  Poceedings of the 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).

  2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC 2016), Portland, USA, 5-10 June 2016.

  IEEE.

  pp. 2698-2703.

  Available from: https://doi.org/10.1109/PVSC.2016.7750140

• Nussbaumer, Hartmut; Klenk, Markus; Keller, Nico,

  2016.

  Small unit compound modules : a new approach for light weight PV modules [paper].

  In:

  Proceedings of the 32nd European Photovoltaic Solar Energy Conference and Exhibition.

  32nd European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2016), Munich, Germany, 20-24 June 2016.

  WIP.

  pp. 56-60.

  Available from: https://doi.org/10.4229/EUPVSEC20162016-1BO.12.5

• Nussbaumer, Hartmut; Klenk, Markus; Schär, Daniel; Baumann, Thomas; Carigiet, Fabian; Keller, Nico; Baumgartner, Franz,

  2015.

  PV installations based on vertically mounted bifacial modules evaluation of energy yield and shading effects [paper].

  In:

  Proceedings of the 31st European Photovoltaic Solar Energy Conference and Exhibition.

  31st European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC), Hamburg, Germany, 14-18 September 2015.

  WIP.

  pp. 2037-2041.

  Available from: https://doi.org/10.4229/EUPVSEC20152015-5AV.6.34

• Klenk, Markus,

  2023.

  Energiegründach mit vertikal installierter PV in der Praxis.

  In:

  21. Schweizer Photovoltaik-Tagung, Bern, Schweiz, 20.-21. März 2023.

  Available from: https://www.swissolar.ch/fileadmin/user_upload/Tagungen/PV-Tagung_2023/Praesentationen_Tag2/PVT23_4.3_Markus_Klenk.pdf

• Nussbaumer, Hartmut; Klenk, Markus; Morf, Marco; Fil, Greg; Carigiet, Fabian,

  2021.

  Comparative energy yield study of vertically installed bifacial PV modules measured by a miniturized test rig.

  In:

  38th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC), online, 6-10 September 2021.

• Klenk, Markus; Nussbaumer, Hartmut; Morf, Marco; Baumann, Thomas; Baumgartner, Franz; Berrian, Djaber; Libal, Joris; Janssen, Gaby; Burgers, Teun,

  2018.

  Bifacial modeling with the BIFOROT.

  In:

  Fifth bifiPV Workshop, Denver, USA, 10-11 September 2018.

• Klenk, Markus; Baumann, Thomas; Nussbaumer, Hartmut; Morf, Marco; Keller, Nicolas; Baumgartner, Franz,

  2017.

  BIFOROT – Experimental data for LCOE appraisal of bifacial systems.

  In:

  4th bifiPV Workshop 2017, Konstanz, Deutschland, 25-26 October 2017.

• Klenk, Markus; Nussbaumer, Hartmut; Baumgartner, Franz; Keller, Nicolas; Baumann, Thomas,

  2016.

  Bifacial outdoor roto tester : BIFOROT.

  In:

  3rd bifi PV 2016 Workshop on Bifacial PV, Miyazaki, Japan, 29-30 September 2016.

  Miyazaki:

  University of Miyazaki.

Publications before appointment at the ZHAW

Progress in the Industrial Evaluation of the mc-Si PERCT Technology Based on Boron Diffusion
Teppe, A., Gong, C., Zhao, K., Liu, J., Wang, S., Dong, J., Zhou, S., Keller, S., Klenk, M., Melnyk, I., et al. (2015). Energy Procedia 77, 208–214.

Material properties of CuGaSe2 absorber films prepared by rapid thermal annealing of stacked elemental layers
Klenk, M., Schenker, O., Alberts, V., Probst, U., and Bucher, E. (2003). J. Phys. Appl. Phys. 36, 2531–2537.

Preparation of device quality chalcopyrite thin films by thermal evaporation of compound materials
Klenk, M., Schenker, O., Alberts, V., and Bucher, E. (2002). Semicond. Sci. Technol. 17, 435–439.

Phase separation and compositional changes in two-stage processed chalcopyrite thin films
Alberts, V., Klenk, M., and Bucher, E. (2001). Thin Solid Films 387, 44–46.

Properties of flash evaporated chalcopyrite absorber films and solar cells
Klenk, M., Schenker, O., Alberts, V., and Bucher, E. (2001). Thin Solid Films 387, 47–49.

Control of two-step growth processes of chalcopyrite thin films by X-ray fluorescence spectroscopy
Klenk, M., Schenker, O., Alberts, V., and Bucher, E. (2001). Appl. Surf. Sci. 173, 62–68.

Material Losses and Compositional Changes in Two-Step Processed CuInSe2
Alberts, V., Klenk, M., and Bucher, E. (2000). Thin Films. Jpn. J. Appl. Phys. 39, 5776–5780.

X-ray fluorescence investigation of the Ga distribution in Cu(In,Ga)Se2 thin films
Alberts, V., Klenk, M., and Bucher, E. (2000). Sol. Energy Mater. Sol. Cells 64, 371–383.

Photoluminescence and X-ray fluorescence measurements of successively thinned CuGaSe2 films
Klenk, M., Schenker, O., and Bucher, E. (2000). Thin Solid Films 361–362, 229–233.

Some results from CuGaSe2 solar cells prepared by rapid thermal processing
Schenker, O., Klenk, M., and Bucher, E. (2000). Thin Solid Films 361–362, 454–457.

Photovoltaic properties of CuGaSe2 homodiodes
Schön, J.H., Klenk, M., Schenker, O., and Bucher, E. (2000). Appl. Phys. Lett. 77, 3657–3659.

X-ray fluorescence measurements of thin film chalcopyrite solar cells
Klenk, M., Schenker, O., Probst, U., and Bucher, E. (1999). Sol. Energy Mater. Sol. Cells 58, 299–319.

n -type conduction in Ge-doped CuGaSe2
Schön, J.H., Oestreich, J., Schenker, O., Riazi-Nejad, H., Klenk, M., Fabre, N., Arushanov, E., and Bucher, E. (1999). Appl. Phys. Lett. 75, 2969–2971.

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