Resun Solar vs Sunpro Power - solar panel manufacturer comparison
Resun Solar has the broader catalog (236 vs 79 models). Sunpro Power leads on peak efficiency at 24.62%. Sunpro Power leans bifacial (91% 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
SUNPRO POWER, established in 2018, is a high-tech enterprise focused on photovoltaic R&D and manufacturing. They are mainly engaged in the production and sales of PV cells and modules, and invest in solar projects. The company provides OEM/ODM services to global customers and has been recognized as a Bloomberg Tier 1...
- Founded
- 2018
- Headquarters
- Yuhuan, Zhejiang province, China
- Annual capacity
- 2-3 GW/year
- Employees
- 51-200
- 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
Sunpro Power skews to higher efficiency: 39% of lineup is 23%+
Sunpro Power offers more 600W+ panels (39% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (66%)
Dominant cell tech: <strong>TOPCon</strong> (67%)
The flagships
Written summary
Resun Solar is a Chinese module manufacturer headquartered in Suzhou, founded around 2005-2007, with more than 15 years in the market and past experience as a qualified supplier for World Bank solar home system projects. It operates roughly 1 GW of annual production capacity, sells into over 80 countries, and holds standard certifications such as TUV, IEC61215 and IEC61730, though available sources do not clearly confirm current BloombergNEF Tier 1 status. Sunpro Power, founded in 2018 and based in Yuhuan with a second production site in Wuxi, is a younger but faster-scaling brand that has held BNEF Tier 1 status continuously since Q2 2022, with capacity now above 2 GW annually and expansion toward 3.5-4 GW underway. On institutional footprint and documented bankability, Sunpro Power currently has the stronger position.
Resun Solar's catalog spans polycrystalline and monocrystalline panels from about 420 W to 590 W, including bifacial modules, aimed at residential rooftops as well as larger commercial and MW-scale projects. Sunpro Power is built around TOPCon cell technology, supplemented by HJT and back-contact modules, covering a wider 375-720 W range, which positions it more toward buyers seeking newer n-type technology for both rooftop and utility-scale ground-mount installations. Both brands carry standard industry certifications (TÜV, UL, CE), though Resun stands out with a notably long 30-year performance warranty compared to Sunpro's more typical 25-year term.
For a typical international buyer, particularly an EPC contractor or investor who needs BNEF-verified bankability, Sunpro Power is the safer default choice given its newer TOPCon technology and consistently documented Tier 1 status. Resun Solar remains a reasonable budget-oriented option with a long market history, but its institutional standing is less clearly documented - for standard rooftop installations, the two brands can largely be treated as interchangeable.
Generated by Claude Sonnet 5 · 2026-09-23
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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.