Astronergy vs Resun Solar - solar panel manufacturer comparison
Resun Solar has the broader catalog (236 vs 150 models). Astronergy leads on peak efficiency at 24.80%. Astronergy 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
Astronergy is a global manufacturer and supplier of solar modules, and a subsidiary of Chint Group, one of the world's leading providers of smart energy solutions. The company focuses on the R&D, production, and sales of high-efficiency crystalline silicon PV cells and PV modules. Astronergy has established...
- Founded
- 2006
- Headquarters
- Hangzhou, China
- Annual capacity
- 76+ GW/year
- Employees
- 12000+
- 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
Astronergy skews to higher efficiency: 39% of lineup is 23%+
Astronergy offers more 600W+ panels (40% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (89%)
Dominant cell tech: <strong>TOPCon</strong> (66%)
The flagships
Written summary
Astronergy is a Chinese PV module manufacturer founded in 2006 and part of the Chint Group, headquartered in Haining. It has been named a Tier 1 module supplier on S&P Global's Cleantech Companies list and holds BloombergNEF Tier 1 bankability status, reflecting recognition from major financiers and EPC contractors. Its manufacturing footprint is substantial, with production capacity reported around 76 GW in 2024 and a target near 100 GW for 2025, alongside cumulative global shipments exceeding 150 GW. Resun Solar, also China-based, was founded in 2005 and operates on a far smaller scale, with production capacity historically cited around 1 GW. It does not appear on current Tier 1 manufacturer lists from BloombergNEF or other major industry trackers, positioning it as more of a niche or regional supplier than a top-tier global brand. On institutional footprint, Astronergy is clearly the stronger of the two, with recognized bankability and multi-gigawatt scale that Resun Solar has not matched.
Astronergy's product lineup centers on its ASTRO series built on TOPCon cell technology, ranging from residential-oriented modules like the ASTRO N7s (roughly 470 W, up to 23.5% efficiency) designed for lightweight rooftop installs, through to higher-power modules such as the ASTRO N8 and N8 Pro (up to 825 W) aimed at utility-scale ground-mount farms and commercial rooftops. Resun Solar's catalog is narrower, spanning roughly 380 W to 590 W panels covering both residential rooftops and medium to large ground-mount projects; part of its range has also shifted to TOPCon cells, with panels certified to TUV and IEC standards and confirmed PID-free, though positioned more as a cost-conscious option than a flagship performer.
For a typical buyer who values financing ease, warranty confidence and long-term brand stability, Astronergy is the safer default given its Tier 1 bankability and production scale. Resun Solar remains a reasonable, cost-effective choice for smaller residential jobs or budget-driven ground-mount projects where bankability matters less, but it is not a direct substitute at utility scale or in bank-financed deals.
Generated by Claude Sonnet 5 · 2026-08-18
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.