Half-cut solar cells have quickly grown to become an industry standard, promising more power through reduced cell-to-module losses, among other advantages. Innovative processes have been introduced to reduce cell damage during the actual cutting process, but even these still leave behind an unpassivated area at the edge of the cell, which can result in performance losses. As cell efficiencies increase, this will only become more of a problem. pv magazine examines the possible solutions.
REC Group is one of a few manufacturers to have integrated half-cut cells with heterojunction technology, in its Alpha module series. The creation of newly unpassivated edges, negatively affecting performance, is a growing concern for cell and module manufacturers.
Image: REC Group
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