Resun Solar vs Seraphim - solar panel manufacturer comparison
Resun Solar has the broader catalog (236 vs 160 models). Resun Solar leads on peak efficiency at 23.66%. Seraphim leans bifacial (69% 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
Resun Solar Energy Co., Ltd. specializes in developing and manufacturing high-quality, cost-effective photovoltaic solar modules. With factories accredited by ISO9001 & 14001, their panels are certified by TUV, IEC61215, IEC61730, and other international quality systems. The company's sales network spans over 80...
- Founded
- 2007
- Headquarters
- Suzhou, China
- Annual capacity
- 1 GW/year
Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...
- Founded
- 2011
- Headquarters
- Changzhou, China
- Annual capacity
- 13 GW/year
- Employees
- 1001-5000
- 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
Seraphim skews to higher efficiency: 12% of lineup is 23%+
Seraphim offers more 600W+ panels (35% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (66%)
Dominant cell tech: <strong>PERC</strong> (52%)
The flagships
Written summary
Resun Solar is a Chinese module manufacturer headquartered in Changzhou, Jiangsu province, founded in 2005, with annual production capacity of roughly 3 GW. The company holds standard certifications such as TUV, IEC61215, IEC61730 and CE, but it does not appear on published BloombergNEF Tier 1 bankability lists. Seraphim, also based in China, operates at a considerably larger scale, with annual production capacity around 13 GW, and has held BNEF Tier 1 status for eleven consecutive years while collecting six PVEL Top Performer awards, giving it a noticeably stronger institutional and financing track record than Resun.
Both brands cover residential rooftop and larger commercial or utility-scale projects, though their technology mixes differ. Resun's lineup is built almost entirely around TOPCon cells, with some PERC products still in the catalog, spanning roughly 380 to 590 watts and average efficiency near 22.3 percent. Seraphim's portfolio is broader, blending TOPCon, PERC and a small share of HJT technology, with modules ranging from about 400 up to 730 watts, including the Sable series for rooftop use and the bifacial Nebula series aimed at ground-mount and utility installations.
For buyers who need strong bankability for project financing, Seraphim is the safer default given its long-standing Tier 1 status and much larger manufacturing footprint. Resun Solar can still be a reasonable, lower-profile option for smaller residential jobs where formal bankability matters less, but the two brands are not interchangeable when institutional credibility is a requirement.
Generated by Claude Sonnet 5 · 2026-08-09
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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.