ET Solar Solar Panels Review 2026
Comprehensive analysis of ET Solar's solar panel portfolio — 10 panels reviewed with detailed specifications, efficiency data, and technology breakdown.
10 Panels
Up to 21.4% Efficiency
530W – 555W
ET Solar
Company Overview
Key Statistics
Total Panels
10
Avg. Efficiency
21.0%
Max Efficiency
21.4%
Power Range
530W – 555W
Avg. Power
542W
Avg. Temp Coeff
-0.34%/°C
Bifacial Panels
5 (50%)
Avg. Warranty
28 years
Technology Breakdown
Cell Technologies
PERC
10 panels (100.0%)
Power Distribution
500-599W
10 panels (100.0%)
Top Picks from ET Solar
Most Efficient
| # | Model | Power | Efficiency | Tech |
|---|---|---|---|---|
| 1 | ET-M772BH555WW/WB | 555W | 21.4% | Monocrystalline |
| 2 | ET-M772BH550WW/WB | 550W | 21.3% | Monocrystalline |
| 3 | ET-M772BH550TW/TB | 550W | 21.3% | Monocrystalline |
| 4 | ET-M772BH545TW/TB | 545W | 21.1% | Monocrystalline |
| 5 | ET-M772BH545WW/WB | 545W | 21.1% | Monocrystalline |
Highest Power
| # | Model | Power | Efficiency | Tech |
|---|---|---|---|---|
| 1 | ET-M772BH555WW/WB | 555W | 21.4% | Monocrystalline |
| 2 | ET-M772BH550WW/WB | 550W | 21.3% | Monocrystalline |
| 3 | ET-M772BH550TW/TB | 550W | 21.3% | Monocrystalline |
| 4 | ET-M772BH545TW/TB | 545W | 21.1% | Monocrystalline |
| 5 | ET-M772BH545WW/WB | 545W | 21.1% | Monocrystalline |
Best ET Solar Panels by Use Case
Best for Commercial
500W+, ranked by power output
555W
21.4%
550W
21.3%
550W
21.3%
545W
21.1%
545W
21.1%
Best Bifacial
Dual-sided panels, ranked by efficiency
21.3%
550W
21.1%
545W
20.9%
540W
20.7%
535W
20.5%
530W
Pros & Cons
Strengths
- Strong bifacial lineup — 50% of portfolio supports dual-sided generation
- Strong warranty coverage averaging 28 years
- Established manufacturer with 21+ years of experience
Considerations
- Average efficiency of 21.0% is below the industry leading edge
- Limited adoption of latest cell technologies (TOPCon/HJT)
Efficiency Distribution
5
20-21%
50.0%
5
21-22%
50.0%
Frequently Asked Questions
ET Solar offers 10 solar panel models with an average efficiency of 21.0%. Check their full panel lineup on ComparePV to find the best model for your needs.
ET Solar manufactures panels ranging from 530W to 555W, covering both residential and commercial applications. Their portfolio includes PERC (100%) cell technologies.
ET Solar panels have an average efficiency of 21.0%, with their most efficient model reaching 21.4%. This puts them at a solid mid-range level in the current market.
Yes, ET Solar offers 5 bifacial panels, representing 50% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
ET 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.
ET 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.
The Verdict
ET Solar is a solid option, offering 10 panels suitable for commercial and utility-scale projects. With an average efficiency of 21.0% and top models reaching 21.4%, their panels deliver competitive performance.
Compare ET Solar with Competitors
Explore All ET Solar Panels
Browse the complete catalog of 10 ET Solar solar panels with detailed specifications, filters, and comparison tools.
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