--- title: "AEET vs Just Solar - Brand Comparison | ComparePV" description: "Compare AEET vs Just Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/aeet-vs-just-solar" --- # AEET vs Just Solar Just Solar has the broader catalog (42 vs 5 models). Just Solar leads on peak efficiency at 23.82%. Just Solar leans bifacial (17% of lineup). ## The two companies | Attribute | AEET | Just Solar | | --- | --- | --- | | Country | | | | Headquarters | | | | Founded | | | | Employees | | | | Annual capacity | | | | Tier 1 | no | no | | Listed | | | | Website | | | ## Catalog & Power | Measure | AEET | Just Solar | Margin | | --- | --- | --- | --- | | Panel Models | 5 | 42 | +37 | | Max Power | 200 W | 740 W | +540 W | | Avg Power | 190 W | 491 W | +301 W | ## Efficiency | Measure | AEET | Just Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | 15.70% | 23.82% | +8.12 pp | | Avg Efficiency | 14.90% | 22.08% | +7.18 pp | ## Reliability & Warranty | Measure | AEET | Just Solar | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | - | -0.306%/°C | | | Bifacial Share | 0 (0%) | 7 (17%) | +17 pp | | Avg Warranty | 25.0 yrs | 28.5 yrs | +3.5 yr | ## Efficiency distribution Just Solar skews to higher efficiency: 33% of lineup is 23%+ | Efficiency band | AEET | Just Solar | | --- | --- | --- | | \<20% | 5 (100.0%) | 0 | | 20-21% | 0 | 8 (19.0%) | | 21-22% | 0 | 14 (33.3%) | | 22-23% | 0 | 6 (14.3%) | | 23%+ | 0 | 14 (33.3%) | ## Power distribution Just Solar offers more 600W+ panels (17% of lineup) | Power band | AEET | Just Solar | | --- | --- | --- | | \<400W | 5 (100.0%) | 7 (16.7%) | | 400-499W | 0 | 21 (50.0%) | | 500-599W | 0 | 7 (16.7%) | | 700W+ | 0 | 7 (16.7%) | ## Cell technology Dominant cell tech: **PERC** (100%) Dominant cell tech: **TOPCon** (52%) | Technology | AEET | Just Solar | | --- | --- | --- | | PERC | 5 (100.0%) | 0 | | TOPCon | 0 | 22 (52.4%) | | Back Contact | 0 | 13 (31.0%) | | HJT | 0 | 7 (16.7%) | ## Top panels, AEET | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [SE200M(24)F](https://comparepv.com/panel/aeet-se200m-24-f) | 200 | 15.7 | - | Monocrystalline | | 2 | [SE195M(24)F](https://comparepv.com/panel/aeet-se195m-24-f) | 195 | 15.3 | - | Monocrystalline | | 3 | [SE190M(24)F](https://comparepv.com/panel/aeet-se190m-24-f) | 190 | 14.9 | - | Monocrystalline | | 4 | [SE185M(24)F](https://comparepv.com/panel/aeet-se185m-24-f) | 185 | 14.5 | - | Monocrystalline | | 5 | [SE180M(24)F](https://comparepv.com/panel/aeet-se180m-24-f) | 180 | 14.1 | - | Monocrystalline | ## Top panels, Just Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 | 23.8 | -0.260 | Monocrystalline | | 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 | 23.7 | -0.260 | Monocrystalline | | 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 | 23.5 | -0.260 | Monocrystalline | | 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 | 23.3 | -0.260 | Monocrystalline | | 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 | 23.2 | -0.260 | Monocrystalline | | 6 | [JST-FCMH-715W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-715w-hd) | 715 | 23.0 | -0.260 | Monocrystalline | | 7 | [JST-FCMH-710W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-710w-hd) | 710 | 22.9 | -0.260 | Monocrystalline | | 8 | [JST-EBMH-560W-D](https://comparepv.com/panel/just-solar-jst-ebmh-560w-d) | 560 | 21.9 | -0.360 | Monocrystalline | | 9 | [JST-EBMH-555W-D](https://comparepv.com/panel/just-solar-jst-ebmh-555w-d) | 555 | 21.7 | -0.360 | Monocrystalline | | 10 | [JST-EBMH-550W-D](https://comparepv.com/panel/just-solar-jst-ebmh-550w-d) | 550 | 21.5 | -0.360 | Monocrystalline | ## Summary AEET Energy Group GmbH is a Germany-based company with roots in photovoltaic wholesale and project development. Rather than operating as a vertically integrated panel manufacturer, AEET functions primarily as a procurement and distribution partner, sourcing modules from leading producers and supplying large-scale commercial and industrial projects across Europe. Because it sits upstream from direct manufacturing, it does not appear on the BloombergNEF Tier 1 module manufacturer list, and no independently verified annual production capacity figures are publicly available. Just Solar Group Limited - trading as Shanghai Just Solar Co., Ltd. - is a Chinese manufacturer headquartered in Shanghai with cell and module production based in Zhejiang province. The company reports roughly 1 GW of vertically integrated capacity and holds standard third-party certifications including TUV IEC 61215 and IEC 61730, CE marking, Australian CEC approval, and UK MCS recognition. In terms of institutional footprint, AEET carries the weight of a well-networked European distributor, while Just Solar represents a mid-tier Chinese manufacturer with certified but sub-Tier-1 standing. AEET's product offering is oriented around brokering modules from established brands for commercial and utility-scale customers, making it more of a channel than a label in its own right. Just Solar targets a broad mix of commercial, industrial, rural, and residential segments with its own branded modules. No WebSearch results confirmed the dominant cell technology for either brand with precision, so technology claims are omitted here. Just Solar's publicly stated 25-year warranty is consistent with mid-market Chinese manufacturers. For a buyer evaluating these two in 2025, the choice is less a direct product-to-product comparison and more a question of procurement model. A buyer seeking a branded, certified panel with a direct manufacturer relationship and consistent product lineage would lean toward Just Solar, while AEET is better approached as a wholesale sourcing partner when flexibility across multiple brands matters more than single-label consistency. \---LINKS--- \- https://www.enfsolar.com/aeet \| AEET Energy Group GmbH profile - ENF Solar industry database \| article \- https://www.enfsolar.com/just-solar \| Just Solar Group Limited profile - ENF Solar industry database \| article \- https://shjustsolar.en.made-in-china.com/ \| Shanghai Just Solar Co. Ltd. manufacturer and product listing \| article \- https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings \| Tier 1 solar panel manufacturers list 2025 - RENVU \| article Sources: \- \[AEET Energy Group GmbH - ENF Solar\](https://www.enfsolar.com/aeet) \- \[Just Solar Group Limited - ENF Solar\](https://www.enfsolar.com/just-solar) \- \[Shanghai Just Solar Co. Ltd.\](https://shjustsolar.en.made-in-china.com/) \- \[Tier 1 Solar Panels List 2025 - RENVU\](https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings) Written by claude-sonnet from the figures above. ## Other comparisons - [AEET vs A.B. Energy](https://comparepv.com/aeet-vs-a-b-energy) - [AE Solar vs Just Solar](https://comparepv.com/ae-solar-vs-just-solar) - [AEET vs AIKO](https://comparepv.com/aeet-vs-aiko) - [AKCOME vs Just Solar](https://comparepv.com/akcome-vs-just-solar) - [AEET vs ARTsolar](https://comparepv.com/aeet-vs-artsolar) - [ASM vs Just Solar](https://comparepv.com/asm-vs-just-solar) --- Source: https://comparepv.com/aeet-vs-just-solar Not in this file, on the page: the distributions above drawn as charts.