Astronergy vs JS Solar - solar panel manufacturer comparison
Astronergy has the broader catalog (150 vs 137 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
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>PERC</strong> (39%)
The flagships
Written summary
JS Solar, formally Yixing JS Solar Co., Ltd, is a privately held Chinese manufacturer headquartered in Wuxi, Jiangsu Province, with roots going back to 2004 and a dedicated production base established in 2007. Its annual manufacturing capacity is comparatively modest, reported around 600 MW, and available research does not place the brand on any recognized Tier 1 or BloombergNEF bankability list. Astronergy, the solar arm of the much larger Chint Group, was founded in 2006 in Haining, China, and has grown into one of the industry's major players, with module production capacity reported at roughly 76 GW in 2024 and a stated target near 103 GW for 2025. Astronergy is confirmed Tier 1 by Bloomberg, was named a Tier 1 PV Module Supplier in S&P Global's Cleantech Companies list, and holds an "A" bankability rating from PV Tech's ModuleTech report, giving it a substantially stronger institutional footprint than JS Solar.
JS Solar's catalog spans roughly 200 W to 670 W panels aimed at both residential and commercial rooftops, with a cell mix still weighted toward PERC alongside a smaller and growing TOPCon share, plus a limited bifacial lineup suited to smaller ground-mount projects. Astronergy has moved decisively into n-type TOPCon technology, which now makes up the large majority of its portfolio, and its ASTRO N series has been recognized in independent "best panel" lists for Australia in 2025; the company also scores well in PV Evolution Labs reliability testing, reflecting a product lineup built for both premium residential installations and utility-scale deployments.
For a typical buyer in 2025, Astronergy is the safer default: it combines confirmed Tier 1 and bankability credentials, larger-scale independent testing validation, and a more advanced TOPCon-based product line, which matters for financing, insurance, and long-term performance assurance. JS Solar may still suit smaller regional projects or buyers prioritizing a lower-volume, specialized supplier, but its lack of verified Tier 1 status and smaller production scale make it a less institutionally proven choice by comparison.
Generated by Claude Sonnet 5 · 2026-08-26
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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.