The 6.55 MW project, hailed as the world’s first grid-connected, solar rooftop project within a social housing community, equipped almost 2,000 houses with solar panels.

The Chinese manufacturer says Germany’s Institute for Solar Energy Research Hamelin (ISFH) has independently verified the result.

Korean researchers revealed that efficiency losses in heterojunction solar cells arise from two coexisting defect types - dangling bonds and weak silicon-silicon bonds. Their findings explain how ...