Fraunhofer ISE and M10 Industries Unveil New Matrix Shingle Technology

Fraunhofer ISE said the technology is best suited for integrated solar applications and facades. Image: Fraunhofer ISE.

The Fraunhofer Institute for Solar Power Systems ISE and M10 Industries have unveiled new matrix shingle technology for connecting solar cells that is said to produce modules 2-6% more efficient than those using half-cut connected cells of conventional way.

In this approach, the stringer arranges the shingle solar cells in a staggered fashion similar to how bricks are laid in a masonry wall. This arrangement increases the efficiency of the module while improving shade tolerance, the duo said.

Fraunhofer ISE said the technology goes “one step further” than conventional shingle solar module technologies, in which individual cells overlap in a shingle arrangement to reduce the space between solar cells in a string, resulting in lower currents and higher yields.

The matrix arrangement allows fuller use of the entire module area, producing modules up to 6% more efficient than modules using conventionally connected half-cut solar cells.

During this time, the array also allows current to flow around shaded areas of the module, potentially doubling the amount of power a module can produce under partial shade.

The new spar used to develop the matrix was built as part of the Shirkan project and funded by the German Federal Ministry of Economic Affairs and Energy.

After presenting an article on the subject at the European Solar Photovoltaic Energy Conference and Exhibition (EU PVSEC) last month, the first prototypes using this technology will be on display this week at the Intersolar Europe 2021 exhibition in Munich.

The technology is described as being best used for integration with building facades, with Achim Kraft, group leader for interconnection and encapsulation at Fraunhofer ISE, describing matrix shingle modules as “predestined” for applications. integrated.

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