GCL vs SunKean - solar panel manufacturer comparison
GCL has the broader catalog (232 vs 57 models). GCL leads on peak efficiency at 24.50%. SunKean leans bifacial (77% of lineup).
Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.
The two companies
GCL is a global company focusing on green energy and high-efficiency photovoltaic materials. They are known for their innovation in polysilicon and wafer technologies, with a focus on low-carbon solutions. GCL is committed to building a low-carbon PV value chain and advancing global clean energy transformation.
- Founded
- 1990
- Headquarters
- Suzhou/Hong Kong, China
- Annual capacity
- 30+ GW/year
- Employees
- 6000+
- Tier 1 bankable
- Yes
SUNKEAN specializes in providing sustainable energy connection solutions to global customers. They offer a range of products including solar cables, wire harnesses, and related connectors for photovoltaic, energy storage, and charging sectors. As of 2025, SUNKEAN employs over 200 people and operates a production...
- Founded
- 2013
- Headquarters
- Wuxi, Jiangsu, China
- Employees
- 200+
Catalogue against catalogue
An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.
What each of them builds
GCL skews to higher efficiency: 28% of lineup is 23%+
GCL offers more 600W+ panels (44% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (47%)
Dominant cell tech: <strong>TOPCon</strong> (39%)
The flagships
Written summary
GCL (GCL System Integration Technology) is a Chinese solar manufacturer headquartered in Hefei, Anhui Province, with roots in the broader GCL Group that has been active in the photovoltaic supply chain for decades. GCL SI shipped approximately 16 GW of solar modules in 2023 according to PV Tech, making it one of the larger-volume module producers globally. The company has invested heavily in N-type TOPCon cell and module capacity, with its Funing plant reaching 12 GW of annual nameplate capacity and a planned 60 GW facility in Hefei under phased construction. While GCL SI is a significant volume player, it sits a tier below the BloombergNEF-dominant names such as Jinko, LONGi, Trina, and JA Solar in institutional recognition and bankability ranking.
SunKean, also based in China (Wuxi, Jiangsu) and founded in 2013, is not a solar panel manufacturer. Web research consistently identifies SunKean as a manufacturer of solar cables, MC4 connectors, wire harnesses, and related balance-of-system connection components for photovoltaic, energy storage, and EV-charging applications. SunKean holds certifications including UL, TUV, ETL, and CE for its connector and cable product lines, and has commercial presence across Japan, Australia, Europe, and the United States. These are complementary BOS products that are installed alongside panels - not competing with them.
A direct comparison of GCL versus SunKean as "solar panel manufacturers" is therefore not meaningful: GCL SI is a large-scale module producer offering TOPCon panels for residential, commercial, and utility-scale installations, while SunKean supplies the cables and connectors that connect those panels to the rest of a solar system. Buyers selecting a module brand should evaluate GCL SI on its own merits against other module makers; separately, buyers sourcing solar cables and connectors might evaluate SunKean against other BOS component suppliers.
Generated by Claude Sonnet · 2026-07-02
Other brand comparisons
Shop prices: See 6 GCL offers
Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.