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Hoymiles vs JA Solar - solar panel manufacturer comparison

Hoymiles
China Founded 2012 Tier 1
Read the Hoymiles 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 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
0 504
Highest power
0 Wp 740 Wp
Best efficiency
- 24.8%
Average efficiency
- 21.1%
Bifacial share
0% 47%
Average warranty
- 28 yrs
01

The two companies

Company facts, not datasheet figures
Hoymiles

Hoymiles Power Electronics Inc. specializes in module-level power electronics (MLPE) solutions, including microinverters, energy storage, and monitoring systems. They focus on research and development, manufacturing, and sales of photovoltaic inverter power conversion equipment. Their mission is to make smart energy...

Founded
2012
Headquarters
Shanghai, China
Employees
1,640
Tier 1 bankable
Yes
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 Hoymiles JA Solar
Catalog & Power
Panel Models 0 504+504
Max Power 0 W 740 W+740 W
Avg Power 0 W 456 W+456 W
Efficiency
Max Efficiency - 24.80%
Avg Efficiency - 21.13%
Reliability & Warranty
Avg Temp Coefficient - -0.322%/°C
Bifacial Share 0 (0%) 238 (47%)+47 pp
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)

Hoymiles cell technology
Share of their models by cell architecture
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
Hoymiles all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

Hoymiles and JA Solar are both Chinese companies operating in the solar energy industry, but they serve fundamentally different market segments and should not be compared as direct competitors. Hoymiles, founded in 2012 and listed on the Shanghai Stock Exchange, is exclusively a microinverter and power electronics manufacturer - it produces no solar panels at all, which is reflected in its panel portfolio data. With approximately 1,640 employees, it is a focused, mid-sized specialist. JA Solar, founded in 2005 and listed on the Shenzhen Stock Exchange, is one of the world's largest solar module manufacturers, employing over 37,000 people and operating at a production capacity exceeding 100 GW. Both companies hold Tier 1 bankable status. JA Solar's panel portfolio spans 524 models with a maximum rated power of 740 Wp, an average module efficiency of approximately 20.9%, and an average temperature coefficient of around -0.32%/°C per degree above 25°C, placing it in a competitive range for heat tolerance.

In terms of technology and application fit, Hoymiles has built a strong international footprint - including established service and logistics networks across Europe, the Americas, and Asia-Pacific - on the strength of its microinverter lineup. Its latest MiT 8-in-1 three-phase unit reaches 5 kW output, making it compatible with today's high-wattage modules, while the HiFlow series targets the growing European balcony solar and plug-in residential market. Hoymiles microinverters are particularly suited to residential rooftop installations with complex shading, multi-pitch roof designs, or mixed orientations where per-module optimization delivers measurable yield gains. JA Solar's strength lies in the breadth and cost-competitiveness of its panel portfolio: the PERC-based Deep Blue 3.0 series covers mainstream residential and C&I ground-mount applications, while the TOPCon-based Deep Blue 4.0 series achieves efficiencies between 21.8% and 23%, making it competitive for space-constrained rooftops and premium utility-scale projects. JA Solar has earned PVEL Top Performer status for the tenth consecutive year in 2025, a strong indicator of long-term reliability.

For international buyers, the practical takeaway is that these two brands address complementary parts of a solar system rather than competing directly. A complete installation could logically combine JA Solar modules - selected for their proven reliability, wide power range up to 740 Wp, and average warranty of approximately 28 years - with Hoymiles microinverters where site conditions favor distributed power conversion. In straightforward, unshaded utility-scale or large C&I projects, JA Solar panels paired with conventional string inverters from other vendors will typically offer a lower system cost, while Hoymiles adds the most value in residential and small commercial installations where shading or roof complexity justifies the microinverter premium.

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 389 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.