Oxford PV has achieved a new world record in solar module efficiency. The 60-cell residential-size module, produced with Oxford PV’s perovskite-on-silicon tandem solar cells, has achieved an unprecedented efficiency of 26.9%, surpassing the current best silicon modules ~25% with a similar designated module area. The breakthrough double-glass module, with a designated area just over 1.6 m2, weighs under 25 kg and is an ideal size for residential applications. The efficiency was independently m...