Shaded PV & Optimized System Performance

• Allenspach, Cyril Armand; Baumgartner, Franz, 2023. Performance of power optimizer versus string inverter systems [poster]. In: 21. Schweizer Photovoltaik-Tagung, Bern, Schweiz, 20.-21. März 2023. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. Available from: https://doi.org/10.21256/zhaw-27169
• Allenspach, Cyril Armand; Carigiet, Fabian; Bänziger, Arturo; Schneider, Andrin; Baumgartner, Franz, 2022. Power conditioner efficiencies and annual performance analyses with partially shaded photovoltaic generators using indoor measurements and shading simulations. Solar RRL. Available from: https://doi.org/10.1002/solr.202200596
• Carigiet, Fabian; Allenspach, Cyril Armand; Baumgartner, Franz, 2022. Optimales Design mit oder ohne Optimizer Bulletin SEV/VSE 10/2022, S. 27. Available from: https://www.bulletin.ch/de/news-detail/optimales-design-mit-oder-ohne-optimizer.html
• Baumgartner, Franz, 2021. Optimizer: Nur ein Hype oder die Zukunft? Bulletin SEV/VSE 5/2021, S. 62. Available from: https://www.bulletin.ch/de/news-detail/optimizer-nur-ein-hype-oder-die-zukunft.html

With ShadeOSP you are able to see annual results of different PV-systems and their simulations. Simulations have already been carried out for you and the corresponding results have been stored. Within ShadeOSP these PV-systems and their simulations are called "shading cases". You can switch between these shading cases to understand the results and how they relate to shading scenarios.

On the left hand side of ShadeOSP the different cases are listed. By clicking on the desired case, its composition is loaded in the 3D view. In addition, a result area is displayed, in which the most important annual results of the system can be seen. If you want to analyse a system in more detail, you can switch to expert mode (switch at top right corner). Simulations are performed in three different variants of the underlying systems and their results are presented separately.

• SINV: Conventional string inverter system
• all MLPE: Fully equipped MLPE system
• ind MLPE: Partially-optimized MLPE system
  (PV-Modules with power-optimizer are labeled red)

For more information about these system variants, the calculations in the simulation or their background, please consult the references to EFFPVShade. If you have any questions or suggestions regarding this application, please refer to the imprint below.

Prof. Dr. Franz Baumgartner
ZHAW School of Engineering
Department Mechanical Engineering, Energy Technology and Aviation
Technikumstrasse 9
8400 Winterthur
franz.baumgartner@zhaw.ch

We would like to acknowledge and express our gratitude to the open-source community for their valuable contributions. In particular, this project includes the following open source contributions:

• SunCalc, Vladimir Agafonkin (BSD-2-Clause license)
• Font Awesome (MIT License)

A special gratitude goes to the company Swiss Interactive AG for their support by generously providing 3D models.

We remain committed to acknowledging all relevant open-source software and individuals who have played a significant role in the development of this project.