Resistive power loss analysis of PV modules made from halved 15.6 × 15.6 cm² silicon PERC solar cells with efficiencies up to 20.0%

verfasst von

Jens Muller, David Hinken, Susanne Blankemeyer, Heike Kohlenberg, Ulrike Sonntag, Karsten Bothe, Thorsten Dullweber, Marc Kontges, Rolf Brendel

Abstract

In photovoltaic (PV) modules, the interconnection of solar cells is critical in terms of mechanical stability and resistive power losses. In this study, we analyze the interconnection of large-area 15.6 × 15.6 cm² industrial p-type passivated emitter and rear cell (PERC) solar cells in terms of resistive losses. For our analysis, we prepare a 3 × 3 minimodule from PERC solar cells with soldering pads and efficiencies up to 20.0%. We measure a significant cell-to-module (CTM) power loss of 8% at this module. For comparison, we prepare a 3 × 6 module consisting of halved 7.8 × 15.6 cm² PERC solar cells. Using a nanosecond laser to cut the finished solar cell in two pieces, no additional power loss is introduced by cutting. The CTM factor of 1.0 determined at the 3 × 6 module is explained using an analytical model describing the series resistance of the module interconnection. Using this model, we estimate for our current PERC cell generation and module process an output power of 275 W for 60 full-size cells and 285 W for 120 halved cells.

Organisationseinheit(en)

Abt. Solarenergie

Externe Organisation(en)

Institut für Solarenergieforschung GmbH (ISFH)

Typ

Artikel

Journal

IEEE journal of photovoltaics

Band

5

Seiten

189-194

Anzahl der Seiten

6

ISSN

2156-3381

Publikationsdatum

20.11.2014

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie, Elektrotechnik und Elektronik

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1109/JPHOTOV.2014.2367868 (Zugang: Geschlossen)