Explanipedia

Results of IEC 62804 Draft Round Robin Testing (Presentation) Open

Peter Hacke, Kent Terwilliger, Stephan Koch, Timothy D. Weber, J. Berghold , et al. · 2017

Three crystalline silicon module designs were distributed in five replicas each to five laboratories for testing according to the IEC 62804 (Committee Draft) system voltage durability qualification test for crystalline silicon photovoltaic…

Advanced PV Module Hot Spot Characterisation Open

Stefan Krauter, Stefan Wendlandt, L. Süthoff, S. Berendes, Janine Teubner , et al. · 2017

Photovoltaic modules are the key component of any solar power plants. Their long-term performance and availability are responsible for the electrical yield and thus for the profitability of the power plant. To minimise the failure risk, ex…

Shadowing Investigations on Thin Film Modules Open

P. Grunow, Stefan Krauter, J. Berghold, Thomas Weber, S. Berendes , et al. · 2016

PV modules in solar plants are exposed to changing shading conditions. Due to partial module shading, cells are forced to operate in their reverse bias, which potentially leads to hot spots. In extreme situations, the extraordinarily high …

Regeneration of Potential Induced Degradation Affected Modules Open

J. Berghold, Timo Weber, Simon Koch, Cornelia Hinz · 2016

There are certain regeneration methods to recover photovoltaic modules which are affected with potential-induced degradation (PID) in a PV-plant. The aim of these investigations is to compare the effectiveness of the solutions of two well-…

Outdoor Electroluminescence Imaging of Crystalline Photovoltaic Modules: Comparative Study between Manual Ground-Level Inspections and Drone-Based Aerial Surveys Open

J. Berghold, P. Clemens, Andreas Fladung, C. Sobottka, Timothy D. Weber , et al. · 2016

The electroluminescence (EL) scan is a powerful method to detect solar cells or modules with various defects. The electroluminescence measurement is used by default already in most cell and module production although an international stand…

Indoor and Outdoor Characterization of Innovative Colored BIPV Modules for Façade Application Open

Erika Saretta, Francesco Frontini, Pierluigi Bonomo, Thomas Weber, J. Berghold · 2016

The integration of photovoltaic technologies in buildings is considered as promising way to profit by renewable energies in the built environment, with many advantages. Nevertheless, dealing with PV in architecture is still a challenge for…

Investigation on the Impact of Module Cleaning on the Antireflection Coating Open

J. Berghold, Christian Hagendorf, Abdullah Sönmez, Klemens Ilse, N. Ferretti · 2016

Soiling can cause strong losses in the performance of PV modules, especially in regions with high dust loads like deserts. Therefore, the modules are periodically cleaned in many cases, which can damage the surface of the modules, especial…

Hot-Spot Measurements on Crystalline Silicon Solar Cells with Different Reverse Current Characteristic Open

J. Berghold, Janine Teubner, Stefan Wendlandt, S. Pingel, B. Litzenburger , et al. · 2015

Hot spots of crystalline silicon solar cells are a major failure mode for solar modules. Consecutive on our last year’s investigation where we showed that a comparison of (i) a simple hot spot test on bare cells in the dark to (ii) a hot s…

Energy Yield Estimation of Monofacial and Bifacial Solar Modules Open

F. Madon, R. Einhaus, J. Berghold, G. Mancini, N. Ferretti , et al. · 2015

Monofacial and bifacial solar modules featuring diverse characteristics were produced and measured indoor under standard test conditions (STC). They were installed in the desert in El Gouna, Egypt, where their IV curves were recorded conti…

Thermal Stress Analysis at Encapsulation and Backsheet Materials for PV-Modules Open

P. Grunow, Stefan Krauter, M. Schoppa, J. Berghold, A. Drobisch , et al. · 2015

Infrared imaging is a powerful method to identify and to analyze solar cells or modules with relatively higher temperatures during flied inspections. Higher temperature values can be attributed to cell mismatches, shadowing or isolated fra…

Improvement of a Prediction Model for Potential Induced Degradation by Better Understanding the Regeneration Mechanism Open

Simon Koch, J. Berghold, Cornelia Hinz, Stefan Krauter, P. Grunow · 2015

This paper is the continuation of the work presented at the EUPVEC 2013 and 2014 [1, 2]. It will present the further developed PID simulation model. The potential-induced-degradation (PID) effect can be described mainly by two parameters. …

Reflectance Measurements for Testing the Effect of Module Cleaning on the Glass Surface Open

P. Grunow, J. Berghold, Tatiana Weber, S. Janke, B. Litzenburger , et al. · 2015

In the last years, because of the higher irradiation, an increase of installed PV systems situated close to the equator line could be observed. As these regions are often characterized by an arid climate, sand and dust deposition on the so…

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