Dr. Markus Klenk

ZHAW School of Engineering
IEFE Photovoltaics
Technikumstrasse 9
8400 Winterthur

+41 (0) 58 934 48 04
markus.klenk@zhaw.ch

Projects

Publications

Articles in scientific journal, peer-reviewed

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

Conference contributions, peer-reviewed

Baumgartner, Franz P.; Klenk, Markus; Widler, Adrian; Baumann, Linus,

2024.

MPP tracking losses of module level power electronics at partial module shading [paper].

In:

Proceedings of the 41st European Photovoltaic Solar Energy Conference and Exhibition.

41st European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Vienna, Austria, 23-27 September 2024.

München:

WIP.

pp. 020289-001-020289-006.

Available from: https://doi.org/10.4229/EUPVSEC2024/3EO.1.5
Nussbaumer, Hartmut; Hiltebrand, Roger; Pfyffer, Selina; Klenk, Markus,

2023.

Photovoltaic and green roof : energy yield per area of vertically installed bifacial modules in dense arrangements [paper].

In:

Proceedings of the 40th European Photovoltaic Solar Energy Conference and Exhibition.

40th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Lisbon, Portugal, 18-22 September 2023.

München:

WIP.

pp. 020424-001-020424-007.

Available from: https://doi.org/10.4229/EUPVSEC2023/4DO.12.5
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://userarea.eupvsec.org/proceedings/EU-PVSEC-2021/4AV.2.27/
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

Other publications

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 [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; 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; 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

Oral conference contributions and abstracts

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.

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