--- title: "Just Solar Panels Review 2026: Pros, Cons & Specs | ComparePV" description: "In-depth Just Solar solar panel review 2026. 42 models analyzed: efficiency, cell technology, warranty, top picks. Compare Just Solar panels on ComparePV." source: "https://comparepv.com/reviews/just-solar" --- # Just Solar panels, *read off the datasheets* Just Solar has 42 modules in the database, from 340 to 740 Wp. Everything below is computed from those 42 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Just Solar does not publish a figure, it is left out of the average rather than assumed. ## Key figures | Measure | Value | Note | | --- | --- | --- | | Panels | 42 | models in the database | | Average efficiency | 22.1 % | across the catalogue | | Best efficiency | 23.8 % (good) | their strongest module | | Power range | 340-740 Wp | smallest to largest | | Bifacial share | 17 % | 7 dual-sided models | | Average warranty | 28 years | guaranteed output term | ## 01. The top of the range The leaders of Just Solar's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof. ### Most efficient module efficiency | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 Wp | 23.8% (good) | | 2 | [JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 Wp | 23.8% (good) | | 3 | [JST-EDMH-465W-TD](https://comparepv.com/panel/just-solar-jst-edmh-465w-td) | 465 Wp | 23.8% (good) | | 4 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 Wp | 23.7% (good) | | 5 | [JST-EDMH-(445-465)W-TD (460W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-460w-class) | 460 Wp | 23.6% (good) | - JST-FCMH-740W-HD - Monocrystalline bifacial - JST-EDMH-(445-465)W-TD (465W class) - Monocrystalline - JST-EDMH-465W-TD - Monocrystalline - JST-FCMH-735W-HD - Monocrystalline bifacial - JST-EDMH-(445-465)W-TD (460W class) - Monocrystalline [Sort the whole catalogue by efficiency](https://comparepv.com/panels/just-solar?sort_by=efficiency&sort_order=desc) ### Highest power nameplate output | # | Panel | efficiency | power | | --- | --- | --- | --- | | 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 23.8% (good) | 740 Wp | | 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 23.7% (good) | 735 Wp | | 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 23.5% (good) | 730 Wp | | 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 23.3% (good) | 725 Wp | | 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 23.2% (good) | 720 Wp | - JST-FCMH-740W-HD - Monocrystalline bifacial - JST-FCMH-735W-HD - Monocrystalline bifacial - JST-FCMH-730W-HD - Monocrystalline bifacial - JST-FCMH-725W-HD - Monocrystalline bifacial - JST-FCMH-720W-HD - Monocrystalline bifacial [Sort the whole catalogue by power](https://comparepv.com/panels/just-solar?sort_by=power&sort_order=desc) ## 02. By what the array is for Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case. ### For a house roof 380-460 Wp | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [JST-EDMH-(445-465)W-TD (460W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-460w-class) | 460 Wp | 23.6% (good) | | 2 | [JST-EDMH-460W-TD](https://comparepv.com/panel/just-solar-jst-edmh-460w-td) | 460 Wp | 23.6% (good) | | 3 | [JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 Wp | 23.3% (good) | | 4 | [JST-EDMH-455W-TD](https://comparepv.com/panel/just-solar-jst-edmh-455w-td) | 455 Wp | 23.3% (good) | | 5 | [JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 Wp | 23.1% (good) | - JST-EDMH-(445-465)W-TD (460W class) - Monocrystalline - JST-EDMH-460W-TD - Monocrystalline - JST-EDMH-(445-465)W-TD (455W class) - Monocrystalline - JST-EDMH-455W-TD - Monocrystalline - JST-EDMH-(445-465)W-TD (450W class) - Monocrystalline ### For a commercial array 500 Wp and up | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 Wp | 23.8% (good) | | 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 Wp | 23.7% (good) | | 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 Wp | 23.5% (good) | | 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 Wp | 23.3% (good) | | 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 Wp | 23.2% (good) | - JST-FCMH-740W-HD - Monocrystalline bifacial - JST-FCMH-735W-HD - Monocrystalline bifacial - JST-FCMH-730W-HD - Monocrystalline bifacial - JST-FCMH-725W-HD - Monocrystalline bifacial - JST-FCMH-720W-HD - Monocrystalline bifacial ### For a ground mount dual-sided | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 Wp | 23.8% (good) | | 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 Wp | 23.7% (good) | | 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 Wp | 23.5% (good) | | 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 Wp | 23.3% (good) | | 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 Wp | 23.2% (good) | - JST-FCMH-740W-HD - Monocrystalline bifacial - JST-FCMH-735W-HD - Monocrystalline bifacial - JST-FCMH-730W-HD - Monocrystalline bifacial - JST-FCMH-725W-HD - Monocrystalline bifacial - JST-FCMH-720W-HD - Monocrystalline bifacial ## 03. What the catalogue is made of Shares are of the 42 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one. [Cell technology across the market](https://comparepv.com/stats/cell-technology) ### Cell technology share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | TOPCon | 52.4% | 22 | | | Back Contact | 31.0% | 13 | | | HJT | 16.7% | 7 | TOPCon accounts for 52.4% of the catalogue - 22 of 42 modules. ### Efficiency spread share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | 20-21% | 19.0% | 8 | | | 21-22% | 33.3% | 14 | | | 22-23% | 14.3% | 6 | | | 23%+ | 33.3% | 14 | ## 04. Strengths and gaps Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built. ### What this catalogue is good at - **Strength:** High-efficiency panels available (up to 23.8%) - **Strength:** Strong warranty coverage averaging 28 years - **Strength:** High-power panels available (up to 740W) for commercial applications ### Where it is thin - **Watch out:** Limited bifacial panel options ## 05. In short > **Just Solar:** Just Solar is an industry leader in efficiency, offering 42 panels suitable for both residential and commercial buyers. With an average efficiency of 22.1% and top models reaching 23.8%, their panels deliver competitive performance. ### Common questions #### Is Just Solar a good solar panel manufacturer? Just Solar offers 42 solar panel models with an average efficiency of 22.1%. Check their full panel lineup on ComparePV to find the best model for your needs. #### What types of solar panels does Just Solar make? Just Solar manufactures panels ranging from 340W to 740W, covering both residential and commercial applications. Their portfolio includes TOPCon (52%), Back Contact (31%), HJT (17%) cell technologies. #### How efficient are Just Solar solar panels? Just Solar panels have an average efficiency of 22.1%, with their most efficient model reaching 23.8%. This puts them among the industry leaders in the current market. #### Does Just Solar make bifacial solar panels? Yes, Just Solar offers 7 bifacial panels, representing 17% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems. #### What warranty does Just Solar offer on their solar panels? Just Solar panels come with an average performance warranty of 28 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels. #### Are Just Solar panels good for residential use? Just Solar offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications. #### Does Just Solar use TOPCon technology? Yes, Just Solar has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production. ## 06. Compared with A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes. [Build your own](https://comparepv.com/comparisons) - [Just Solar vs Jinko Solar](https://comparepv.com/jinko-solar-vs-just-solar) - [Just Solar vs JA Solar](https://comparepv.com/ja-solar-vs-just-solar) - [Just Solar vs Trina Solar](https://comparepv.com/just-solar-vs-trina-solar) - [Just Solar vs LONGi](https://comparepv.com/just-solar-vs-longi) - [Just Solar vs Canadian Solar](https://comparepv.com/canadian-solar-vs-just-solar) - [Just Solar vs Q-Cells](https://comparepv.com/just-solar-vs-q-cells) - [Just Solar vs AIKO](https://comparepv.com/aiko-vs-just-solar) - [Just Solar vs Hyundai](https://comparepv.com/hyundai-vs-just-solar) ## Elsewhere - [All Just Solar panels 42](https://comparepv.com/panels/just-solar) - [All manufacturers](https://comparepv.com/reviews) - [Panel database](https://comparepv.com/panels) - [Market statistics](https://comparepv.com/stats) --- Source: https://comparepv.com/reviews/just-solar