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JA Solar vs Powitt Solar - solar panel manufacturer comparison

JA Solar
China Founded 2005 Tier 1
Read the JA Solar review
VS
Powitt Solar
Headquarters not published
Read the Powitt Solar review
At a glance

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.

Panel models
504 21
Highest power
740 Wp 720 Wp
Best efficiency
24.8% 23.7%
Average efficiency
21.1% 22.9%
Bifacial share
47% 100%
Average warranty
28 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
JA Solar

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
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric JA Solar Powitt Solar
Catalog & Power
Panel Models 504+483 21
Max Power 740 W+20 W 720 W
Avg Power 456 W 636 W+180 W
Efficiency
Max Efficiency 24.80%+1.11 pp 23.69%
Avg Efficiency 21.13% 22.90%+1.77 pp
Reliability & Warranty
Avg Temp Coefficient -0.322%/°C -0.298%/°C+0.024
Bifacial Share 238 (47%) 21 (100%)+53 pp
Avg Warranty 27.9 yrs 30.0 yrs+2.1 yr

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.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Powitt Solar skews to higher efficiency: 48% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Powitt Solar offers more 600W+ panels (62% of lineup)

JA Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (49%)

Powitt Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>N-type</strong> (100%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

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

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 391 JA Solar offers

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.