Phono Solar — China
Plus 425W C
The Phono Solar Plus 425W C is a 425W N-Type TOPCon solar panel with 20.3% efficiency. Backed by a 17-year warranty.
Standard TierFEOC: Restricted
425W
Wattage
20.3%
Efficiency
N-Type TOPCon
Cell Type
17 years
Warranty
Full Specifications
- Brand
- Phono Solar
- Model
- Plus 425W C
- Series
- Plus
- Wattage
- 425W
- Module Efficiency
- 20.3%
- Cell Type
- N-Type TOPCon
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 17 years
- Est. Price Per Watt
- $2.34
- Est. 7kW System Cost
- $16,380
- Est. 10kW System Cost
- $23,400
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- China
- FEOC Status
- fail
Other Phono Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| TwinPlus 450W D | 450W | 21.2% | PERC | $2.61 |
| Plus 450W D | 450W | 21.2% | PERC | $2.61 |
| Pro 450W D | 450W | 21.2% | PERC | $2.61 |
| TwinPlus 445W C All-Black | 445W | 21% | N-Type TOPCon | $2.55 |
| Plus 445W C All-Black | 445W | 21% | N-Type TOPCon | $2.55 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 6 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 7 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon Air 455W E Pro | 455W | 23.5% | $4.72 |
Frequently Asked Questions
How much does a 425W Phono Solar Plus 425W C cost?
The Phono Solar Plus 425W C costs approximately $994 per panel ($$2.34/W). A typical 7kW system using this panel would cost around $16,380 before incentives.
⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.
Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →
Is the Phono Solar Plus 425W C a good solar panel?
The Phono Solar Plus 425W C has 20.3% efficiency and a 17 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Phono Solar Plus 425W C panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.