--- title: "EcoFlow vs JA Solar - Brand Comparison | ComparePV" description: "Compare EcoFlow vs JA Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/ecoflow-vs-ja-solar" --- # EcoFlow vs JA Solar JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup). ## The two companies | Attribute | EcoFlow | JA Solar | | --- | --- | --- | | Country | China | China | | Headquarters | Shenzhen | Beijing | | Founded | 2017 | 2005 | | Employees | 1000+ | 37,289 | | Annual capacity | | 100+ GW/year | | Tier 1 | | yes | | Listed | | SZSE: 002459 | | Website | [https://www.ecoflow.com](https://www.ecoflow.com) | [https://www.jasolar.com](https://www.jasolar.com) | 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... 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... ## Catalog & Power | Measure | EcoFlow | JA Solar | Margin | | --- | --- | --- | --- | | Panel Models | 0 | 504 | +504 | | Max Power | 0 W | 740 W | +740 W | | Avg Power | 0 W | 456 W | +456 W | ## Efficiency | Measure | EcoFlow | JA Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | - | 24.80% | | | Avg Efficiency | - | 21.13% | | ## Reliability & Warranty | Measure | EcoFlow | JA Solar | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | - | -0.322%/°C | | | Bifacial Share | 0 (0%) | 238 (47%) | +47 pp | | Avg Warranty | - | 27.9 yrs | | ## Efficiency distribution JA Solar skews to higher efficiency: 15% of lineup is 23%+ | Efficiency band | EcoFlow | JA Solar | | --- | --- | --- | | \<20% | 0 | 112 (22.2%) | | 20-21% | 0 | 99 (19.6%) | | 21-22% | 0 | 112 (22.2%) | | 22-23% | 0 | 107 (21.2%) | | 23%+ | 0 | 74 (14.7%) | ## Power distribution JA Solar offers more 600W+ panels (14% of lineup) | Power band | EcoFlow | JA Solar | | --- | --- | --- | | \<400W | 0 | 142 (28.2%) | | 400-499W | 0 | 173 (34.3%) | | 500-599W | 0 | 120 (23.8%) | | 600-699W | 0 | 60 (11.9%) | | 700W+ | 0 | 9 (1.8%) | ## Cell technology Dominant cell tech: **PERC** (49%) | Technology | EcoFlow | JA Solar | | --- | --- | --- | | PERC | 0 | 247 (49.0%) | | TOPCon | 0 | 146 (29.0%) | | N-type | 0 | 90 (17.9%) | | Unknown | 0 | 16 (3.2%) | | HJT | 0 | 5 (1.0%) | ## Top panels, JA Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [JAM66D46-740/LB](https://comparepv.com/panel/ja-solar-jam66d46-740-lb) | 740 | 23.8 | -0.290 | Monocrystalline | | 2 | [JAM66D46-735/LB](https://comparepv.com/panel/ja-solar-jam66d46-735-lb) | 735 | 23.7 | -0.290 | Monocrystalline | | 3 | [JAM66D46-730/LB](https://comparepv.com/panel/ja-solar-jam66d46-730-lb) | 730 | 23.5 | -0.290 | Monocrystalline | | 4 | [JAM66D46-725/LB](https://comparepv.com/panel/ja-solar-jam66d46-725-lb) | 725 | 23.3 | -0.290 | Monocrystalline | | 5 | [JAM66D46-720/LB](https://comparepv.com/panel/ja-solar-jam66d46-720-lb) | 720 | 23.2 | -0.290 | Monocrystalline | | 6 | [JAM66D46-715/LB](https://comparepv.com/panel/ja-solar-jam66d46-715-lb) | 715 | 23.0 | -0.290 | Monocrystalline | | 7 | [JAM66D46-710/LB](https://comparepv.com/panel/ja-solar-jam66d46-710-lb) | 710 | 22.9 | -0.290 | Monocrystalline | | 8 | [JAM66D46-705/LB](https://comparepv.com/panel/ja-solar-jam66d46-705-lb) | 705 | 22.7 | -0.290 | Monocrystalline | | 9 | [JAM66D46-700/LB](https://comparepv.com/panel/ja-solar-jam66d46-700-lb) | 700 | 22.5 | -0.290 | Monocrystalline | | 10 | [JAM66D46-695/LB](https://comparepv.com/panel/ja-solar-jam66d46-695-lb) | 695 | 22.4 | -0.290 | Monocrystalline | ## Summary 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. Written by claude-sonnet from the figures above. ## Other comparisons - [EcoFlow vs A.B. Energy](https://comparepv.com/ecoflow-vs-a-b-energy) - [AE Solar vs JA Solar](https://comparepv.com/ae-solar-vs-ja-solar) - [EcoFlow vs AEET](https://comparepv.com/ecoflow-vs-aeet) - [AIKO vs JA Solar](https://comparepv.com/aiko-vs-ja-solar) - [EcoFlow vs AKCOME](https://comparepv.com/ecoflow-vs-akcome) - [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar) --- Source: https://comparepv.com/ecoflow-vs-ja-solar