Day4 Energy and Roth & Rau have joined forces to produce the world’s first 19.3% efficient module. The module combines Roth & Rau’s heterojunction and Day4’s DNA technologies, which helps minimise efficiency losses from cell to module and create substantial reduction in silver paste consumption.
A pilot line for Roth & Rau’s new cells has been set up in Hohenstein-Ernstthal and the company is already preparing to scale this up for mass production. Even during large-scale production, Roth & Rau’s cell manufacturing process contains very few production steps and therefore it is both cost-effective and compatible with thin wafer technology.
“With better performance from mono- and multi-crystalline cells, and serving as a platform for a variety of cell types including large area back-contact cells, thin-film cells, ultra thin Si cells, large format Si cells, and heterojunction PV cells; the Day4 stay-powerful Technology has proven to be key to bringing to market some of the newest innovations in solar cell design,” said George Rubin, president of Day4 Energy.
“Day4's stay-powerful Technology is an ideal platform for delivering advanced module technologies in combination with our Heterojunction technology. The collaboration is an excellent fit for both companies,” added Dietmar Roth, Roth & Rau’s CEO.
Roth & Rau presented its heterojunction technology at the 26th EU PVSEC in Hamburg on Tuesday. The company’s booth is located on stands B7 and A14 in hall A1.