Meyer Burger's heterojunction projects on the rise


Swiss equipment manufacturer Meyer Burger is finding increasing projects for its heterojunction-based solar modules.

The company supplied its modules to the Migros Aare cooperative in Schönbühl, Switzerland, where they will power its operations center beginning next year.

Heterojunction cells are a hybrid form of crystalline and amorphous silicon solar cells. The combination of these two solar cell types enables an efficiency of well over 21%, according to Meyer Burger. “Up to now, monocrystalline solar cells have been the most efficient solar cells due to their regular crystal structure,” the company said. “Their already high, albeit limited efficiency is again substantially increased through the heterojunction technology thanks to the high temperature resistance and excellent low light behavior of the amorphous solar cells.”

While it did not specify the size of the installation, Meyer Burger said the requirements of the Migros center project were “extremely demanding,” adding that only its modules were able to satisfy its exacting requirements.

In addition to the heterojunction technology, the modules currently being installed on the roof of the Migros Aare cooperative owe their efficiency to the use of two other technologies: Thanks to the company’s SmartWire cell connection technology, the solar modules have a dense contact matrix and their bifacial design enables them to generate electricity on the rear as well as the front. “Together, these changes result in a substantial increase in performance compared to conventional solar modules,” Meyer Burger said.

The Migros Aare project was Meyer Burger’s second major heterojunction installation this year. In September, the company supplied its heterojunction modules for the south facade of the CSEM research center in Neuchatel.

Meyer Burger said a number of its customers had already commissioned production lines for their own heterojunction cells.