Germany-based Oxford PV has announced the first commercial sale of its perovskite-on-silicon tandem PV modules. The company claims the panels are capable of producing up to 20% more energy than traditional silicon models.The first shipment of these 72-cell panels, offering 24.5% efficiency, has been sent to a US-based customer for use in a utility-scale installation. These panels are based on Oxford PV’s in-house perovskite-on-siliconcellsproduced at its facility in Brandenburg an der Havel, Germany. The increased energy output will help lower the levelized cost of electricity (LCOE) while maximizing electricity production from a smaller land footprint, says the company.