JA Solar vs Powitt Solar - solar panel manufacturer comparison
JA Solar has the broader catalog (504 vs 21 models). JA Solar leads on peak efficiency at 24.80%. Powitt Solar leans bifacial (100% 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
JA Solar is a global leader in the manufacturing of high-performance photovoltaic products. Founded in 2005, the company designs, develops, manufactures, and sells solar cells and modules. JA Solar's products are used in ground-mounted power plants, commercial & industrial rooftop PV systems, and residential rooftop...
- Founded
- 2005
- Headquarters
- Beijing, China
- Annual capacity
- 100+ GW/year
- Employees
- 37,289
- Listed
- SZSE: 002459
- 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
Powitt Solar skews to higher efficiency: 48% of lineup is 23%+
Powitt Solar offers more 600W+ panels (62% of lineup)
Dominant cell tech: <strong>PERC</strong> (49%)
Dominant cell tech: <strong>N-type</strong> (100%)
The flagships
Written summary
JA Solar was founded in 2005 in China and has grown into one of the world's leading solar module manufacturers, with a workforce exceeding 37,000 employees and annual production capacity of over 100 GW. The company holds Tier 1 bankable status, is publicly listed on the Shenzhen Stock Exchange, and consistently ranks among the top global module suppliers by shipment volume - achieving Top Performer status in PVEL reliability testing for the tenth consecutive time in 2025. Powitt Solar is a considerably smaller Chinese manufacturer based in Jiangsu province, established around 2007, with a manufacturing capacity of approximately 1.2 GW and an international presence that includes branch offices in Australia and Sri Lanka. Powitt does not hold Tier 1 bankable status, which limits its eligibility for bank-financed project development, but the company has built a technically focused portfolio entirely around N-type cell technology.
JA Solar's catalog of 524 panel models is one of the broadest in the industry, with PERC technology accounting for over 52% of products and an average efficiency of approximately 20.9%. Maximum rated output reaches 740 Wp, and bifacial designs represent nearly 44% of the range - making JA Solar a strong fit for utility-scale ground-mount projects, large commercial and industrial installations, and residential rooftop applications where brand bankability, supply chain reliability, and product diversity are priorities. Powitt Solar's 21-model lineup is narrow but technically coherent: 100% of its panels use N-type cell technology, delivering an average efficiency of 22.9% and a maximum of 23.69%. All Powitt panels are bifacial, the average temperature coefficient of -0.298%/°C is marginally better than JA Solar's -0.323%/°C, and the average warranty stands at 30 years. The high average panel power of over 636 Wp indicates a focus on large-format modules suited to C&I rooftop and ground-mount projects.
For developers and buyers requiring bankable modules for project finance - across residential, commercial, or utility-scale segments - JA Solar is the lower-risk choice, supported by two decades of operational history, Tier 1 certification, and an extensive product lineup vetted by global lenders. Powitt Solar may appeal to technically oriented buyers comfortable with a non-bankable supplier, particularly for self-funded or smaller-scale projects where its all-N-type bifacial portfolio and 30-year average warranty present a compelling value proposition on a per-watt efficiency basis.
Generated by Claude Sonnet · 2026-05-12
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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.