Phono Solar — China
Plus 375-E Ultra
The Phono Solar Plus 375-E Ultra is a 375W PERC solar panel with 18.7% efficiency. Backed by a 12-year warranty.
Standard TierFEOC: RestrictedBifacial
375W
Wattage
18.7%
Efficiency
PERC
Cell Type
12 years
Warranty
Full Specifications
- Brand
- Phono Solar
- Model
- Plus 375-E Ultra
- Series
- Plus
- Wattage
- 375W
- Module Efficiency
- 18.7%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 42 lbs
- Warranty
- 12 years
- Est. Price Per Watt
- $1.86
- Est. 7kW System Cost
- $13,020
- Est. 10kW System Cost
- $18,600
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- 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 |
|---|---|---|---|
| SunPower Maxeon-40 HC | 405W | 21.7% | $4.00 |
| SunPower Maxeon 405W E Ultra | 405W | 21.7% | $4.00 |
| SunPower Maxeon 405W A Max | 405W | 21.7% | $4.00 |
| SunPower Performance-40 HC | 405W | 21.7% | $4.00 |
Frequently Asked Questions
How much does a 375W Phono Solar Plus 375-E Ultra cost?
The Phono Solar Plus 375-E Ultra costs approximately $698 per panel ($$1.86/W). A typical 7kW system using this panel would cost around $13,020 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 375-E Ultra a good solar panel?
The Phono Solar Plus 375-E Ultra has 18.7% efficiency and a 12 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 375-E Ultra panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 27 panels. The exact number depends on your roof space, energy usage, and local sun hours.