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AmoSolar vs JA Solar - solar panel manufacturer comparison

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

JA Solar has the broader catalog (504 vs 77 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% 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
77 504
Highest power
675 Wp 740 Wp
Best efficiency
22.8% 24.8%
Average efficiency
21.1% 21.1%
Bifacial share
22% 47%
Average warranty
26 yrs 28 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 AmoSolar JA Solar
Catalog & Power
Panel Models 77 504+427
Max Power 675 W 740 W+65 W
Avg Power 522 W+65 W 456 W
Efficiency
Max Efficiency 22.83% 24.80%+1.97 pp
Avg Efficiency 21.14%+0.01 pp 21.13%
Reliability & Warranty
Avg Temp Coefficient -0.339%/°C -0.322%/°C+0.017
Bifacial Share 17 (22%) 238 (47%)+25 pp
Avg Warranty 26.5 yrs 27.9 yrs+1.4 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

JA Solar skews to higher efficiency: 15% of lineup is 23%+

Power spread
Share of each catalogue in every power band

AmoSolar offers more 600W+ panels (23% of lineup)

AmoSolar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (86%)

JA Solar cell technology
Share of their models by cell architecture

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

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AmoSolar is a relatively lesser-known solar module manufacturer without Tier 1/bankable certification, which limits its suitability for projects requiring bank or institutional financing. The company maintains a focused portfolio of 77 modules, heavily weighted toward PERC cell technology (85.71% of the lineup), with an average module power of approximately 521 Wp, average efficiency of 21.14%, and a maximum efficiency of 22.83%. Its bifacial share stands at 22.08%. JA Solar, by contrast, is one of the largest photovoltaic manufacturers in the world - founded in 2005 in China, employing over 37,000 people, with an annual production capacity exceeding 100 GW and a listing on the Shenzhen Stock Exchange (SZSE). JA Solar holds Tier 1/bankable status, giving it a major advantage in project finance contexts and long-term bankability assessments for lenders and EPCs.

AmoSolar's higher average module wattage (~521 Wp) could appeal to residential rooftop installers looking for a simplified, high-output selection, and the company has shown European ambitions by exhibiting at Smarter E Europe 2025. However, its limited third-party validation and narrow product range constrain its application to smaller private or commercial projects. JA Solar offers a substantially broader catalog of 524 modules reaching up to 740 Wp and 24.4% peak efficiency, with a 44.27% bifacial share and a slightly better average temperature coefficient for Pmax (-0.3226 vs -0.3387 %/°C). This combination makes JA Solar well-suited for residential rooftop installs, commercial and industrial (C&I) projects, and large-scale utility ground-mount deployments alike. The company was named a Top Performer in the PVEL 2025 PV Module Reliability Scorecard for the tenth time, further reinforcing its long-term reliability credentials.

For international buyers selecting between the two, JA Solar is the stronger choice across virtually all project categories - its Tier 1 status, global supply chain, superior peak efficiency, higher bifacial share, longer average warranty (~27.85 vs ~26.49 years), and independently verified reliability reduce risk substantially. AmoSolar may serve a niche where bankability is not a requirement and a buyer seeks high average wattage in a concise product selection, but the lack of broad market recognition and independent performance data remains a meaningful risk factor for any sizeable investment.

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 393 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.