Chinese perovskite solar module producer UtmoLight launched its new module series at SNEC 2026 in Shanghai, China, including two products aimed at addressing reliability challenges and application-specific limitations in commercial perovskite photovoltaics.
The company said the new product line reflects a shift beyond efficiency gains and larger module formats toward products tailored to specific deployment scenarios. The lineup includes the Chuangshi S2 high-strength module and the Chuangshi S1 ultra-light module.
The Chuangshi S2 is a 2.81 m² perovskite panel designed for harsh outdoor environments. UtmoLight rates the module at 500 W and said it uses 3.2 mm tempered glass in a double-glass configuration. The company said the module can withstand a front-side mechanical load of up to 5,400 Pa, making it suitable for projects exposed to high winds, heavy snow and hail.
UtmoLight said the product addresses one of the key barriers to large-scale perovskite deployment: mechanical durability. The company developed the module in response to feedback from earlier field projects, including concerns about wind-induced cracking, snow-load deformation and long-term reliability in extreme climates.
According to UtmoLight, the use of tempered glass required modifications to the manufacturing process because perovskite thin-film stacks are sensitive to high temperatures and mechanical processing. The S2 combines tempered-glass encapsulation with the company’s Jichuang+ process platform, which includes optimized functional layers and deposition processes intended to balance mechanical strength, power output and long-term stability.
At SNEC 2026, Germany’s TÜV Rheinland issued a certificate for the S2 panel, recognizing its high-strength design. According to the certification body, the module passed static load tests of 5,400 Pa on the front side and 2,400 Pa on the rear side, as well as a hail impact test using 45 mm hailstones traveling at 33.9 m/s.
The Chuangshi S1 targets lightweight PV applications. The 0.72 m² module uses a 1.1 mm + 1.1 mm ultra-thin double-glass structure. It is 2.6 mm thick and weighs 4 kg, which UtmoLight said is more than 62% lighter than conventional PV modules.
The company said the S1 is designed for distributed PV, building-integrated photovoltaics (BIPV), low-load rooftops and mobile energy applications. Its lower weight enables adhesive installation, reducing the need for rails, clamps and roof penetrations. UtmoLight said the design can improve installation efficiency and reduce risks to roof waterproofing while maintaining the weather resistance of glass encapsulation.
Both products are based on UtmoLight’s vertically integrated perovskite manufacturing platform, which covers materials development, large-area coating and encapsulation. The company has previously identified large-area manufacturing and long-term outdoor validation as key steps toward perovskite commercialization.
In November 2024, UtmoLight’s first gigawatt-scale production line in Wuxi, Jiangsu, hit full-process integration. The initial 2.8m² perovskite module off the line delivered 450 W with a full-area efficiency of 16.1%. As it shifts mature pilot-line processes to large-scale output, UtmoLight targets a mass-production efficiency of 20%.
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