GCL SI Launches Scenario-Specific Modules

GCL System Integration Technology (GCL SI), a vertically integrated PV manufacturer covering polysilicon, wafers, cells, modules, and integrated energy systems, has recently launched its SiRo module portfolio, tailored for site-specific applications. 

For industrial rooftop installations, typically of a low inclination angle relative to the ground or the roof floor level, the company has developed the T-series anti-dust module. Among the TOPCon module’s key features, the company emphasizes frame design and encapsulation that do not compromise mechanical strength. It features short-side frames that eliminate the front cover (typically 11 mm wide) along the edges of the front glass. Unlike the portrait-configured standard PV modules, this module design places the short-side frames at the same level as the front glass, helping dust slide down under gravity. Thereafter, the remaining dust particles are easily washed away by rainwater or dew deposition, preventing potential sedimentary deposition and inadvertent hotspot risks, even at low inclination angles. Without going into detail, the company states that its frame design also ensures the PV module’s mechanical endurance, enabling it to withstand frequent high-wind or snow loading without failure. In addition, its encapsulation, in conjunction with frames, seals the PV laminate to prevent water or moisture ingress, particularly in hot and humid environments. 

The company also launched its T – Marine series TOPCon dual-glass module, developed for coastal installations that are prone to high salinity, wind, and humidity. Without disclosing the module’s power and efficiency, the company states that it is equipped with aluminum frames and features anti-corrosion coatings with a thickness range of 5 µm to 10 µm. This protective layer prevents oxidation of the underlying aluminum when exposed to saline environments and mitigates frame corrosion, helping maintain structural integrity and a continuous electrical path to ground. The module’s front glass has a hydrophobic anti-salt-spray coating, helping deposited saline water droplets slide down and minimizing moisture penetration into the PV laminate. Its dual-glass configuration with a lower water ingress rate also helps withstand frequent high wind loads without moisture penetration compared to glass-backsheet alternatives. Furthermore, this module uses polyolefin (POE)-based front- and rear-encapsulation. Negative biased voltage (DC) PV module strings in hot and humid environments are prone to potential-induced degradation (PID), which the POE layers with high-volume resistivity help reduce. Meanwhile, the module also shows stability under prolonged exposure to ultraviolet sunlight. Moreover, its split junction box (JB), which houses bypass diodes with improved thermal behavior, mitigates potential water shippage through 4 layers of waterproofing compared to its predecessors. While the JB sealant holds the housing to the rear glass, the inside potting material protects the bypass diodes from saline and humid environmental stressors throughout operations. GCL SI adopts dual sealing ring-based connectors to prevent moisture penetration through the PV cable connectors (male and female). And, unlike the standard clipping-based design, it features a 4-latch-based design with ease of installation and higher resilience to water or moisture penetration. The company claims that this module has undergone a wet leakage current test for up to 60 hours without failure. 

The company also introduced its B-series back contact (BC) modules. 

While the company is expected to launch its P Series perovskite module by 2026, the press release did not share the commercialization details for the remaining products.