Search Results - "Friesen, Gabi"

The effect of partial shading on the reliability of photovoltaic modules in the built-environment by Özkalay, Ebrar, Valoti, Flavio, Caccivio, Mauro, Virtuani, Alessandro, Friesen, Gabi, Ballif, Christophe

“…Residential photovoltaic systems often experience partial shading from chimneys, trees or other structures, which can induce hot-spots in the modules. If the…”
Get full text

Results of the round robin calibration of reference solar cells within the PhotoClass project by Kröger, Ingo, Friedrich, Dirk, Winter, Stefan, Salis, Elena, Müllejans, Harald, Pavanello, Diego, Hohl-Ebinger, Jochen, Bothe, Karsten, Hinken, David, Dittmann, Sebastian, Friesen, Gabi, Bliss, Martin, Betts, Tom, Gottschalg, Ralph, Rimmelspacher, Lorentz, Stang, Johannes, Herrmann, Werner, Dubard, Jimmy

“…An intercomparison of terrestrial photovoltaic (PV) calibrations was performed among a number of European calibration and testing laboratories that…”
Get full text

35 years of photovoltaics: Analysis of the TISO‐10‐kW solar plant, lessons learnt in safety and performance—Part 1 by Virtuani, Alessandro, Caccivio, Mauro, Annigoni, Eleonora, Friesen, Gabi, Chianese, Domenico, Ballif, Christophe, Sample, Tony

“…The TISO‐10‐kW solar plant, connected to the grid in 1982, is the oldest installation of this kind in Europe. Its history is well documented, and the full set…”
Get full text

Identify, analyse and mitigate—Quantification of technical risks in PV power systems by Herz, Magnus, Friesen, Gabi, Jahn, Ulrike, Koentges, Marc, Lindig, Sascha, Moser, David

“…Technical risks are important criteria to consider when investing in new and existing PV installations. Quantitative knowledge of these risks is one of the key…”
Get full text

35 years of photovoltaics: Analysis of the TISO‐10‐kW solar plant, lessons learnt in safety and performance—Part 2 by Annigoni, Eleonora, Virtuani, Alessandro, Caccivio, Mauro, Friesen, Gabi, Chianese, Domenico, Ballif, Christophe

“…The TISO‐10‐kW plant, installed in Lugano (Switzerland) in 1982, is the first grid‐connected PV plant in Europe. In a joint publication (part 1), we presented…”
Get full text

Correlating long-term performance and aging behaviour of building integrated PV modules by Özkalay, Ebrar, Virtuani, Alessandro, Eder, Gabriele, Voronko, Yuliya, Bonomo, Pierluigi, Caccivio, Mauro, Ballif, Christophe, Friesen, Gabi

“…Because building-integrated photovoltaic (BIPV) modules are fully integrated into a building envelope, the back of the module can be exposed to little or no…”
Get full text

The Influence of Operating Temperature on the Performance of BIPV Modules by Gok, Abdulkerim, Ozkalay, Ebrar, Friesen, Gabi, Frontini, Francesco

“…To investigate the effect of the operating temperature on the performance of building integrated photovoltaic modules, two different crystalline silicon (c-Si)…”
Get full text

Power Loss Modes of Building-Integrated Photovoltaic Modules: An Analytical Approach Using Outdoor I-V Curves by Gok, Abdulkerim, Ozkalay, Ebrar, Friesen, Gabi, Frontini, Francesco

“…Using outdoor time-series I - V curves, the analytic I sc - V oc method was applied to glass/backsheet and glass/glass crystalline silicon module constructions…”
Get full text

A power-rating model for crystalline silicon PV modules by Huld, Thomas, Friesen, Gabi, Skoczek, Artur, Kenny, Robert P., Sample, Tony, Field, Michael, Dunlop, Ewan D.

“…A model for the performance of generic crystalline silicon photovoltaic (PV) modules is proposed. The model represents the output power of the module as a…”
Get full text

Operating Temperatures and Diurnal Temperature Variations of Modules Installed in Open-Rack and Typical BIPV Configurations by Ozkalay, Ebrar, Friesen, Gabi, Caccivio, Mauro, Bonomo, Pierluigi, Fairbrother, Andrew, Ballif, Christophe, Virtuani, Alessandro

“…Because of building skin integration with restricted or reduced rear-side ventilation, elevated operating temperatures are expected in building-integrated…”
Get full text

Power Loss Modes of Building-Integrated Photovoltaic Modules: An Analytical Approach Using Outdoor [Formula Omitted] Curves by Gok, Abdulkerim, Ozkalay, Ebrar, Friesen, Gabi, Frontini, Francesco

“…Using outdoor time-series I – V curves, the analytic I sc– V oc method was applied to glass/backsheet and glass/glass crystalline silicon module constructions…”
Get full text

Incidence Angle Effect: Validation of New Measurement Methods for IEC 61853‐2 by Pravettoni, Mauro, Saw, Min Hsian, Bardizza, Giorgio, Bellenda, Giovanni, Couderc, Romain, Friesen, Gabi, Herrmann, Werner, Leow, Shin Woei, Riechelmann, Stefan, Valoti, Flavio, van der Heide, Arvid, Weinrich, Frank, Winter, Stefan

“…The incidence angle effect causes a decrease in the photogenerated current of PV modules when they are subject to incident irradiance at wide angles: Its…”
Get full text

Monitoring the Operating Temperatures of Modules in Open-Rack and Typical BIPV Configurations by Ozkalay, Ebrar, Friesen, Gabi, Fairbrother, Andrew, Ballif, Christophe, Virtuani, Alessandro

“…Elevated operating temperatures are expected in BIPV systems due to restricted or reduced rear-side ventilation, which impacts their performance and…”
Get full text

Long‐Term Performance and Shade Detection in Building Integrated Photovoltaic Systems by Fairbrother, Andrew, Quest, Hugo, Özkalay, Ebrar, Wälchli, Philipp, Friesen, Gabi, Ballif, Christophe, Virtuani, Alessandro

“…Building integrated photovoltaics (BIPV) operate in a unique environment compared with field‐mounted systems and may experience elevated temperatures and…”
Get full text

Are the spectroradiometers used by the PV community ready to accurately measure the classification of solar simulators in a broader wavelength range? by Belluardo, Giorgio, Galleano, Roberto, Zaaiman, Willem, Pravettoni, Mauro, Halwachs, Martin, Fucci, Raffaele, Drobisch, Alexander, Friederichs, Matthias, Haverkamp, Erik, Phinikarides, Alexander, Friesen, Gabi

“…•Compares outdoor performance of 8 spectroradiometers for classifying sun simulators.•All labs assure the classification of spectral match within the 25% limit…”
Get full text

Electrical characterization intercomparison of high‐efficiency c‐Si modules within Asian and European laboratories by Monokroussos, Christos, Salis, Elena, Etienne, Damien, Zhang, XiaoYu, Dittmann, Sebastian, Friesen, Gabi, Morita, Kengo, Stang, Johannes, Herbrecht, Thomas, Fakhfouri, Vahid, Rebeaud, Nicolas, Pavanello, Diego, Müllejans, Harald

“…This work presents the results of a high‐efficiency (HE) photovoltaic (PV) module round‐robin intercomparison between five Asian and European ISO/IEC 17025…”
Get full text

PV Module Energy Rating Standard IEC 61853-3 Intercomparison and Best Practice Guidelines for Implementation and Validation by Ruben Vogt, Malte, Riechelmann, Stefan, Gracia-Amillo, Ana Maria, Driesse, Anton, Kokka, Alexander, Maham, Kinza, Karha, Petri, Kenny, Robert, Schinke, Carsten, Bothe, Karsten, Blakesley, James, Music, Esma, Plag, Fabian, Friesen, Gabi, Corbellini, Gianluca, Riedel-Lyngskar, Nicholas, Valckenborg, Roland, Schweiger, Markus, Herrmann, Werner

“…The IEC 61853 standard series aims to provide a standardized measure for photovoltaic (PV) module energy rating, namely the Climate Specific Energy…”
Get full text

High-speed multi-channel system for solar simulator irradiance non-uniformity measurement by Rivola, Davide, Dittmann, Sebastian, Pravettoni, Mauro, Friesen, Gabi, Chianese, Domenico

“…We present a new tool for the measurement of the non-uniformity of a large-area pulsed solar simulator according to IEC 60904-9. We realized a prototype…”
Get full text

Current-soaking and dark storage effects of polycrystalline thin film solar modules by Dittmann, Sebastian, Virtuani, Alessandro, Friesen, Gabi, Serrano, Flavio

“…Polycrystalline thin film modules as CIS and CdTe are known to exhibit metastabilities and performance changes with light exposure or dark storage. In this…”
Get full text

Characterization of CPV cells on a high intensity solar simulator: A detailed uncertainty analysis by Pravettoni, M., Cadruvi, M., Pavanello, D., Cooper, T., Friesen, G.

“…The authors modified a large area pulsed solar simulator to a high intensity pulsed solar simulator, moving the test measurement plane to various distances…”
Get full text