--- title: "Green Energy Supplier vs JA Solar - Brand Comparison | ComparePV" description: "Compare Green Energy Supplier vs JA Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/green-energy-supplier-vs-ja-solar" --- # Green Energy Supplier vs JA Solar JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup). ## The two companies | Attribute | Green Energy Supplier | JA Solar | | --- | --- | --- | | Country | Bulgaria | China | | Headquarters | Sofia | Beijing | | Founded | | 2005 | | Employees | | 37,289 | | Annual capacity | | 100+ GW/year | | Tier 1 | | yes | | Listed | | SZSE: 002459 | | Website | [https://green-energy.bg](https://green-energy.bg) | [https://www.jasolar.com](https://www.jasolar.com) | Green Energy Supplier is a Bulgarian distributor of photovoltaic equipment, offering solar panels, inverters, and energy storage systems from leading manufacturers such as LONGi, Risen Energy, JA Solar, Huawei, and Deye. The company provides consultations, system design, and supply of solar equipment for residential... 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 | Green Energy Supplier | 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 | Green Energy Supplier | JA Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | - | 24.80% | | | Avg Efficiency | - | 21.13% | | ## Reliability & Warranty | Measure | Green Energy Supplier | 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 | Green Energy Supplier | 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 | Green Energy Supplier | 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 | Green Energy Supplier | 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 Green Energy Supplier is a brand for which multiple targeted searches across industry databases, pv-magazine.com, pvtech.org, taiyangnews.info, and other authoritative solar sources returned no usable results. Its country of origin, founding date, annual production volume, Tier 1 or BloombergNEF bankability status, and product portfolio cannot be confirmed from any available public source. No fabricated details are provided here - any buyer considering this brand would need to independently verify certifications, warranty terms, and financial standing before committing. JA Solar, by contrast, is one of the largest solar module manufacturers in the world: founded in 2005 and headquartered in Ningjin County, Hebei Province, China, the company reached a total manufacturing capacity exceeding 100 GW by end of 2024 and shipped a record 79.4 GW of modules that year - a nearly 40% year-on-year increase. JA Solar holds confirmed Tier 1 status from S&P Global Commodity Insights and has a well-established institutional footprint across Europe, the Americas, and Asia-Pacific, with overseas markets accounting for roughly 49% of its 2024 module shipments. JA Solar's main product families in 2025 are the DeepBlue 4.0 Pro and the next-generation DeepBlue 5.0, both based on n-type TOPCon cell technology. The DeepBlue 4.0 Pro targets residential rooftop and commercial C&I applications with module efficiencies reaching 23.3% and power outputs from 460 W to 650 W. The DeepBlue 5.0 is positioned for utility-scale ground-mount projects, offering outputs up to 670 W and module efficiency up to 24.8%, with a claimed reduction in levelized cost of energy compared to its predecessor. For international buyers choosing between the two: JA Solar is a well-documented, bankable choice with a long track record, broad supply chain presence, and independently verified certifications. Green Energy Supplier cannot be meaningfully compared at this time - due diligence on that brand's certifications, warranty enforcement capability, and financial stability is strongly advised before any procurement decision. Written by claude-sonnet from the figures above. ## Other comparisons - [Green Energy Supplier vs A.B. Energy](https://comparepv.com/green-energy-supplier-vs-a-b-energy) - [AE Solar vs JA Solar](https://comparepv.com/ae-solar-vs-ja-solar) - [Green Energy Supplier vs AEET](https://comparepv.com/green-energy-supplier-vs-aeet) - [AIKO vs JA Solar](https://comparepv.com/aiko-vs-ja-solar) - [Green Energy Supplier vs AKCOME](https://comparepv.com/green-energy-supplier-vs-akcome) - [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar) --- Source: https://comparepv.com/green-energy-supplier-vs-ja-solar