Phono Solar vs Resun Solar - solar panel manufacturer comparison
Resun Solar has the broader catalog (236 vs 174 models). Resun Solar leads on peak efficiency at 23.66%. Phono Solar leans bifacial (43% 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
Phono Solar Technology Co., Ltd. specializes in the research, development, and manufacture of photovoltaic solar panels and is a global provider of solar products and services. The company is affiliated with SUMEC Group, a subsidiary of China National Machinery Industry Corporation (SINOMACH). Phono Solar has been...
- Founded
- 2004
- Headquarters
- Nanjing, China
- Annual capacity
- 3-4 GW/year
- Employees
- 13000+
- Tier 1 bankable
- Yes
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
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
Phono Solar skews to higher efficiency: 11% of lineup is 23%+
Resun Solar offers more 600W+ panels (29% of lineup)
Dominant cell tech: <strong>PERC</strong> (37%)
Dominant cell tech: <strong>TOPCon</strong> (66%)
The flagships
Written summary
Phono Solar is a Chinese photovoltaic module manufacturer established in 2008 as a subsidiary of SUMEC Group, part of the state-owned SINOMACH conglomerate. It has held BloombergNEF Tier 1 status continuously since 2014, giving its modules strong bankability for project financing, and its annual production capacity exceeds 10 GW, with manufacturing also based in Turkey and Vietnam. Resun Solar is a smaller Chinese manufacturer founded in 2005, operating factories in Changzhou, Jiangsu province, with annual capacity of roughly 5 GW, though available sources do not confirm a current BloombergNEF Tier 1 listing for the brand. On institutional footing, Phono Solar clearly has the stronger position thanks to its larger parent group and longer track record of bankability.
Phono Solar's lineup centers on PERC and increasingly TOPCon modules aimed at both residential rooftop and commercial and industrial (C&I) applications, making it a common choice for distributed generation projects. Resun Solar's catalog leans on half-cell and full-cell module series, including back-contact (BC) technology, with a notable share of bifacial panels, and the company markets itself for both rooftop systems and medium-to-large ground-mount installations.
For a typical international buyer prioritizing financing eligibility and long-term supplier stability, Phono Solar is the safer default given its confirmed Tier 1 status and greater production scale. Resun Solar can still be a reasonable option for price-sensitive projects or specific technical requirements, but buyers should independently verify its current bankability status before committing to large installations.
Generated by Claude Sonnet 5 · 2026-08-07
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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.