Wuxi Utmost Light Technology (UtmoLight)
Wuxi UtmoLight technology (UtmoLight) is a perovskite photoelectric industrialization technology development company. Before it was spun-off, UtmoLight was the solar business unit of SVOLT Energy Technology of Great Wall holdings.
UtmoLight started research work on perovskite photoelectric technology in 2018. In April 2020, it spun out as UtmoLight Technology. UtmoLight is committed to the commercialization of solar cells and modules, light-emitting quantum dots and precursor materials which are all based on perovskite materials.
UtmoLight operates a cleanroom laboratory of more than 1,000 m² covering research into perovskite cells and modules, quantum dots and thin films, and the synthesis of perovskite raw materials. Its GW-scale perovskite module fab in Wuxi has capacity for roughly 1.8 million modules a year, and the company has reported 20.7% certified efficiency on an 810 cm² module. Its Chuangshi module series includes high-strength and ultra-lightweight products aimed at distributed and building-integrated installations.
Contact information for Wuxi Utmost Light Technology (UtmoLight)
No. 1066, Dacheng Road
Xishan
Wuxi
China
UtmoLight's 6.7 MW perovskite rooftop project connects to the grid, among the largest of its kind
UtmoLight's 6.7 MW perovskite rooftop distributed PV project at Wanshan Lake Park was connected to the grid and put into operation on July 31, completing the project first announced in partnership with Wuxi Xingyuan Green Energy back in November 2025.
The project uses the roof resources of factory buildings in the park, with nearly 15,000 pieces of UtmoLight's own 2.81 m² perovskite PV modules installed. It operates under a "self-generation for self-use, with surplus power fed to the grid" model.
UtmoLight completes 172-day perovskite module field test
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 unveils high-strength and ultra-light perovskite solar modules
UtmoLight has introduced a new series of solar modules at SNEC 2026 in Shanghai, marking a shift toward application-focused product design rather than purely scaling efficiency and size. The launch includes two distinct modules engineered to tackle durability and deployment challenges that have limited broader adoption of perovskite technology.
The new lineup features the Chuangshi S2, a high-strength module designed for demanding outdoor conditions, and the Chuangshi S1, an ultra-lightweight solution aimed at distributed and building-integrated photovoltaics (BIPV). Together, the products reflect a growing emphasis on tailoring perovskite modules to real-world operating environments.
UtmoLight secures 19MW perovskite PV module order
During a recent industry exhibition, UtmoLight reportedly signed a cooperation agreement with the China Construction Fourth Engineering Division (CSCEC 4th Bureau) for a "19MW Perovskite PV Module Project," marking the transition of perovskite PV technology from demonstration to large-scale application.
In the future, the two parties will use this project as a driving force to create benchmark applications for perovskite modules in scenarios such as large public buildings and high-quality commercial and industrial rooftops.
Researchers develop oxygen-tuned ITO buffer layers for high-efficiency, thermally stable perovskite solar cells
Researchers from Wuhan University, Foshan Xianhu Laboratory, Wuhan University of Technology and UtmoLight have developed a processing-enabled strategy that continuously tunes the electronic properties of indium tin oxide (ITO) for improving the performance and thermal stability of inverted perovskite solar cells (PSCs).
The method leverages oxygen-flux-controlled reactive plasma deposition (RPD) to finely adjust the carrier concentration, work function, and band-edge alignment of ITO thin films - without altering the device architecture.
