S-Energy — South Korea
SN Plus 390-B Silver
The S-Energy SN Plus 390-B Silver is a 390W PERC solar panel with 19.2% efficiency. Backed by a 25-year warranty.
Standard Tier
390W
Wattage
19.2%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- S-Energy
- Model
- SN Plus 390-B Silver
- Series
- SN Plus
- Wattage
- 390W
- Module Efficiency
- 19.2%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 44 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.41
- Est. 7kW System Cost
- $16,870
- Est. 10kW System Cost
- $24,100
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- No
- Origin
- South Korea
- FEOC Status
- check
Other S-Energy Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| SN 445W D | 445W | 21.2% | PERC | $3.01 |
| SNE 445W D | 445W | 21.2% | PERC | $3.01 |
| SN Plus 445W D | 445W | 21.2% | PERC | $3.01 |
| SN 440W C All-Black | 440W | 21% | N-Type TOPCon | $2.95 |
| SNE 440W C All-Black | 440W | 21% | N-Type TOPCon | $2.95 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Panasonic EverVolt 420W A Ultra | 420W | 22.3% | $4.08 |
| Panasonic EverVolt 420W D Plus | 420W | 22.3% | $4.08 |
| Panasonic EverVolt VK 420W A Ultra | 420W | 22.3% | $4.08 |
| Panasonic EverVolt VK 420W D Plus | 420W | 22.3% | $4.08 |
Frequently Asked Questions
How much does a 390W S-Energy SN Plus 390-B Silver cost?
The S-Energy SN Plus 390-B Silver costs approximately $940 per panel ($$2.41/W). A typical 7kW system using this panel would cost around $16,870 before incentives. After the 30% federal tax credit, your net cost drops to $11,809.
Is the S-Energy SN Plus 390-B Silver a good solar panel?
The S-Energy SN Plus 390-B Silver has 19.2% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many S-Energy SN Plus 390-B Silver panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 26 panels. The exact number depends on your roof space, energy usage, and local sun hours.