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JA Solar vs Solarfam - solar panel manufacturer comparison

JA Solar
China Founded 2005 Tier 1
Read the JA Solar review
VS
Solarfam
Netherlands
Read the Solarfam review
At a glance

JA Solar has the broader catalog (504 vs 0 models). 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
504 0
Highest power
740 Wp 0 Wp
Best efficiency
24.8% -
Average efficiency
21.1% -
Bifacial share
47% 0%
Average warranty
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
Solarfam

Solarfam is a Dutch solar energy brand operating under the parent company Solmax New Energy B.V. The company distributes and sells solar panels, inverters, batteries, controllers, and water pump systems, targeting both residential and agricultural markets. It positions itself as a sales and integration brand sourcing...

Headquarters
Nieuwegein, Netherlands
02

Catalogue against catalogue

Averages over every model in the database
Metric JA Solar Solarfam
Catalog & Power
Panel Models 504+504 0
Max Power 740 W+740 W 0 W
Avg Power 456 W+456 W 0 W
Efficiency
Max Efficiency 24.80% -
Avg Efficiency 21.13% -
Reliability & Warranty
Avg Temp Coefficient -0.322%/°C -
Bifacial Share 238 (47%)+47 pp 0 (0%)
Avg Warranty 27.9 yrs -

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

JA Solar offers more 600W+ panels (14% of lineup)

JA Solar cell technology
Share of their models by cell architecture

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

Solarfam cell technology
Share of their models by cell architecture
04

The flagships

Highest-power models from each brand
Solarfam all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

JA Solar and Solarfam represent vastly different tiers of the global solar manufacturing industry. JA Solar was founded in 2005 in China and has grown into one of the world's largest solar module producers, ranked second globally by shipment volume. The company employs over 37,000 people, holds a production capacity exceeding 100 GW annually, and carries Tier 1 bankable status - making it a standard reference point for project financiers and institutional buyers worldwide. It is publicly listed on the Shenzhen Stock Exchange and has earned the PVEL "Top Performer" designation for ten consecutive years through 2025. Solarfam, operating under the Solmax New Energy group and headquartered in Nieuwegein, Netherlands, is a considerably smaller entity focused on micro-grid solutions, solar pumping systems for agriculture and pools, and regional distribution within Western Europe. No Tier 1 classification is associated with Solarfam, and the available industry databases contain no panel portfolio data for the brand, which makes direct technical comparison impossible.

JA Solar's portfolio of 524 panel models spans a wide power range, with a maximum output of 740 Wp and a maximum efficiency of 24.4%, with the average panel sitting at roughly 20.9% efficiency. Over 52% of the lineup is built on PERC cell technology, while the newer DeepBlue 5.0 series introduces n-type TOPCon cells reaching up to 650 W and 24.07% efficiency, positioning JA Solar at the frontier of mainstream module technology. The average temperature coefficient of approximately -0.323%/°C and an average warranty period of nearly 28 years round out a technically competitive offering. JA Solar panels are well suited for residential rooftop installations, large commercial C&I projects, and utility-scale ground-mount farms. Solarfam's focus on micro-grid and pumping applications means it serves a narrower niche where off-grid reliability and local logistics matter more than peak wattage or efficiency benchmarks.

For international buyers choosing between the two, JA Solar is the clear choice for any standard grid-tied photovoltaic project requiring bankable, high-volume supply with a proven track record. Solarfam may be relevant only for specific autonomous or agricultural pumping applications in markets where proximity to the Netherlands offers a logistical or after-sales service advantage - but it cannot be evaluated as a direct competitor to JA Solar on panel performance or production scale.

Generated by Claude Sonnet · 2026-05-13

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 386 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.