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EcoFlow vs JA Solar - solar panel manufacturer comparison

EcoFlow
China Founded 2017
Read the EcoFlow 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
EcoFlow

EcoFlow is a company founded in 2017 that develops portable power stations, smart devices, and home energy systems. They offer a range of products including portable power stations, solar panels, and smart home solutions. EcoFlow's mission is to provide eco-friendly energy solutions for individuals, families, and...

Founded
2017
Headquarters
Shenzhen, China
Employees
1000+
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 EcoFlow 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)

EcoFlow 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
EcoFlow all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

EcoFlow and JA Solar are both Chinese companies, but they occupy fundamentally different positions in the solar energy market and cannot be compared as direct competitors. JA Solar, founded in 2005, is one of the world's largest photovoltaic module manufacturers, with over 37,000 employees, a production capacity exceeding 100 GW per year, and a listing on the Shenzhen Stock Exchange (SZSE). It holds Bloomberg Tier 1 bankable status, making it unconditionally accepted by project finance institutions globally. Its catalog spans 524 panel models, with a maximum output of 740 Wp, average efficiency of approximately 20.9%, and top modules reaching 24.4% efficiency. EcoFlow, founded in 2017 with over 1,000 employees, is a consumer electronics brand best known for portable power stations and solar generators - its solar panels are primarily foldable, flexible, or rigid portable units designed for off-grid use, not traditional rooftop or ground-mount installations.

JA Solar's portfolio - with 44% bifacial coverage, an average warranty approaching 28 years, and PERC as the leading cell technology at over 52% of the catalog - is well-suited for residential rooftop installs, commercial and industrial (C&I) projects, and large utility-scale ground-mount arrays. Its tenth consecutive Top Performer recognition in the PVEL 2025 Scorecard reinforces its reputation for consistent reliability at scale. EcoFlow, by contrast, targets mobile users, RV owners, campers, and those seeking energy independence away from the grid, with portable panels boasting up to 23% efficiency that integrate tightly with the company's own power station ecosystem.

For buyers selecting panels for a traditional grid-tied solar installation - whether residential, commercial, or utility-scale - JA Solar is the clear and well-established choice, backed by Tier 1 bankability, a deep product catalog, and a strong track record. EcoFlow is best considered for off-grid or backup power scenarios rather than as an alternative to conventional rooftop modules, as its product line was never designed for that application.

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 333 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.