ASM vs GCL - solar panel manufacturer comparison
GCL has the broader catalog (232 vs 1 models). GCL leads on peak efficiency at 24.50%. GCL leans bifacial (65% 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
Australian Solar Manufacturing (ASM) is a small Australian solar panel assembler that produces crystalline monocrystalline modules domestically using components sourced from Germany, Japan, the USA, and China. The company focuses on providing locally assembled PV modules tailored to Australian conditions, supporting...
- Founded
- 2009
- Headquarters
- Hallam, Victoria, Australia
- Employees
- 1-10
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
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%)
The flagships
Written summary
GCL (Golden Concord Group, also known commercially as GCL System Integration or GCL-SI) is a Chinese manufacturer headquartered in Jiangsu province, founded in 1990. It is a confirmed BloombergNEF Tier 1 bankable module maker and is one of the larger players in global module supply, with an annual production capacity reported at around 30 GW. GCL is part of a vertically integrated conglomerate that also produces polysilicon and wafers, giving it cost advantages across the supply chain. ASM, by contrast, did not surface in any major industry reviews, Tier 1 lists, or bankability reports across multiple targeted searches - so it appears to be a niche, regional, or very recently established brand without a confirmed institutional footprint comparable to GCL.
GCL's product portfolio has evolved noticeably in recent years. Its GEMINI and LOTUS series modules have historically included both PERC and TOPCon variants, but by late 2025 the company phased out its PERC line entirely, with its commercial flagship now a bifacial double-glass TOPCon module reaching rated efficiencies of around 23.5% at 730 W - aimed primarily at utility-scale ground-mount and large commercial rooftop projects. GCL has also entered the back-contact segment and is actively developing perovskite-silicon tandem technology, signaling a long-term R-and-D commitment. ASM's technology mix, cell architecture, and target segments remain unconfirmed from available public sources.
For a typical buyer in 2025, GCL is the clearly documentable choice: it carries recognized bankability status, has a traceable warranty structure, a large enough manufacturing base to support supply continuity, and independent test-lab recognition. Without verifiable public data on ASM's production scale, certifications, or product specifications, it is not possible to make a fair head-to-head recommendation - buyers considering ASM should request third-party test reports and confirm warranty enforceability before committing.
Generated by Claude Sonnet · 2026-06-16
Other brand comparisons
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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.