Just Solar Solar Panels Review 2026
Comprehensive analysis of Just Solar's solar panel portfolio — 37 panels reviewed with detailed specifications, efficiency data, and technology breakdown.
37 Panels
Up to 23.8% Efficiency
340W – 740W
Just Solar
Company Overview
Key Statistics
Total Panels
37
Avg. Efficiency
21.9%
Max Efficiency
23.8%
Power Range
340W – 740W
Avg. Power
495W
Avg. Temp Coeff
-0.31%/°C
Bifacial Panels
7 (19%)
Avg. Warranty
28 years
Technology Breakdown
Cell Technologies
Unknown
12 panels (32.4%)
TOPCon
10 panels (27.0%)
Back Contact
8 panels (21.6%)
HJT
7 panels (18.9%)
Power Distribution
<400W
7 panels (18.9%)
400-499W
16 panels (43.2%)
500-599W
7 panels (18.9%)
700W+
7 panels (18.9%)
Top Picks from Just Solar
Most Efficient
| # | Model | Power | Efficiency | Tech |
|---|---|---|---|---|
| 1 | JST-FCMH-740W-HD | 740W | 23.8% | Monocrystalline |
| 2 | JST-FCMH-735W-HD | 735W | 23.8% | Monocrystalline |
| 3 | JST-EDMH-(445-465)W-TD (465W class) | 465W | 23.8% | Monocrystalline |
| 4 | JST-FCMH-730W-HD | 730W | 23.7% | Monocrystalline |
| 5 | JST-EDMH-(445-465)W-TD (460W class) | 460W | 23.6% | Monocrystalline |
Highest Power
| # | Model | Power | Efficiency | Tech |
|---|---|---|---|---|
| 1 | JST-FCMH-740W-HD | 740W | 23.8% | Monocrystalline |
| 2 | JST-FCMH-735W-HD | 735W | 23.8% | Monocrystalline |
| 3 | JST-FCMH-730W-HD | 730W | 23.7% | Monocrystalline |
| 4 | JST-FCMH-725W-HD | 725W | 23.5% | Monocrystalline |
| 5 | JST-FCMH-720W-HD | 720W | 23.3% | Monocrystalline |
Best Just Solar Panels by Use Case
Best for Residential
380–460W range, ranked by efficiency
23.6%
460W
23.3%
455W
23.1%
450W
22.8%
445W
22.3%
435W
Best for Commercial
500W+, ranked by power output
740W
23.8%
735W
23.8%
730W
23.7%
725W
23.5%
720W
23.3%
Best Bifacial
Dual-sided panels, ranked by efficiency
23.8%
735W
23.8%
740W
23.7%
730W
23.5%
725W
23.3%
720W
Pros & Cons
Strengths
- High-efficiency panels available (up to 23.8%)
- Strong warranty coverage averaging 28 years
- High-power panels available (up to 740W) for commercial applications
Considerations
- Limited bifacial panel options
Efficiency Distribution
8
20-21%
21.6%
14
21-22%
37.8%
4
22-23%
10.8%
11
23%+
29.7%
Frequently Asked Questions
Just Solar offers 37 solar panel models with an average efficiency of 21.9%. Check their full panel lineup on ComparePV to find the best model for your needs.
Just Solar manufactures panels ranging from 340W to 740W, covering both residential and commercial applications. Their portfolio includes Unknown (32%), TOPCon (27%), Back Contact (22%) cell technologies.
Just Solar panels have an average efficiency of 21.9%, with their most efficient model reaching 23.8%. This puts them among the industry leaders in the current market.
Yes, Just Solar offers 7 bifacial panels, representing 19% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
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.
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.
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.
The Verdict
Just Solar is an industry leader in efficiency, offering 37 panels suitable for both residential and commercial buyers. With an average efficiency of 21.9% and top models reaching 23.8%, their panels deliver competitive performance.
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Explore All Just Solar Panels
Browse the complete catalog of 37 Just Solar solar panels with detailed specifications, filters, and comparison tools.
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