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GCL System Integration Technology (GCL SI) is one of four listed companies within GCL Group, which was founded in 1990 and entered the PV industry in 2006.
GCL SI's own business covers high-efficiency cells, large-format modules and energy storage systems, so it is not a module-only story. For installers, the interesting part is how the module range is organised. According to GCL SI, it develops back-contact and TOPCon platforms in parallel and matches each module format to an installation environment, rather than pushing one architecture into every segment.
GCL utility solution is the latest package solution with best technology for partners. The solution focus on standardization and optimization for the solar power plant. Standardized block make the design & construction more convenient and efficient.
No. GCL Group's business portfolio covers wind power, PV power, energy storage and hydrogen energy, among other areas. GCL System Integration Technology (GCL SI) is the group company behind the modules on this page.
Yes. It is GCL SI's back-contact cell platform and the technology behind its all-black module range. GPC 3.0, launched at Intersolar Europe 2026 in Munich, is the current generation.
No. A back-contact module moves all electrical contacts to the rear of the cell, so more of the front face collects light and the module reads as a uniform black rectangle instead of a grid.
No. GPC is back contact, while the NT series is TOPCon with front-side metallisation. Both are n-type.
Yes. The range is designed for the distributed segment, including residential and C&I rooftops and BIPV-style applications. The all-black full-screen look is a main reason it is specified for visible roof planes.
No. GCL SI generally points utility-scale specification to its TOPCon NT series, such as the NT12R/66GDF, rather than GPC.
No. Whether a model gains useful rear-side power depends on its rear encapsulation, so check the bifaciality coefficient on the datasheet instead of inferring it from glass-glass construction.
Yes. They use standard PV electrical interfaces, but string sizing must come from the specific model's electrical parameters, so have your installer check voltage and current windows against the datasheet before ordering.
Yes. For double-glass GPC modules, GCL SI warrants 99% of nominal power in year one, then a maximum decline of 0.35% a year, finishing at no less than 88.85% in year 30.
No. The Limited Warranty Starting Date is the delivery date, or 12 months after the manufacture date, whichever comes first. Keep delivery documentation and install promptly.
Yes. It sits in characters 3 to 8 of the serial number in YYMMDD format, so 260415 means 15 April 2026.
No. The limited warranty applies only to Grade A modules, and Grade B and Grade C are expressly excluded. If GPC modules are offered at an unusual discount, confirm the grade in writing.
Yes. Not following GCL SI's installation or maintenance instructions voids cover, as does repair or modification by anyone other than an approved GCL SI service technician. Keep your commissioning documentation.
No. Not without written permission from GCL SI. Moving modules away from their original continent of destination voids the limited warranty unless GCL SI approved it beforehand.
No. Repair or replacement is the sole remedy and does not extend the original period, so a module replaced in year 12 of a 30-year term is covered for the remaining 18 years.
No. GCL SI chooses at its sole discretion between supplying extra modules to make up the lost power, or repairing or replacing the defective modules at its cost to the original delivery point.
Yes. This applies if the claimed model is out of production. The replacement may differ in size, colour, shape or power, and replaced or repaired modules become GCL SI property.
Yes. It transfers with the property, provided the modules stay at their original installation location. It does not follow modules that are removed and reinstalled elsewhere.
Yes. Include your details, the installer's details, the authorised GCL SI distribution partner's details, evidence of the claim, the affected quantity with serial numbers and production dates, and the stamped or signed invoice. Incomplete submissions are the most common cause of delay.
Yes. Triple Solar is a trade-only distributor, and trade pricing is shown once you are signed in. Registration is free.
