UtmoLight has reportedly completed a 172-day field test of its perovskite modules at the National Wind-Solar-Storage-Transmission Demonstration Base in Zhangjiakou, Hebei Province. The project was connected to the grid in January 2026 using the company's 2.81 m² perovskite modules rated at 450 W.
According to the company, the modules operated under varying irradiation and temperature conditions from winter through summer, maintaining stable power generation with an average performance ratio approaching 100% and no significant degradation. These results are said to be consistent with those previously observed in a separate test conducted at the Daqing base.
UtmoLight said the measured temperature coefficient ranged from -0.001%/°C to -0.004%/°C, compared with the typical -0.2%/°C to -0.4%/°C for crystalline silicon modules, indicating lower power losses at high temperatures. The trial provides additional data on the long-term outdoor stability of perovskite modules.
