S-Energy — South Korea
SN 350W Plus
The S-Energy SN 350W Plus is a 350W N-Type TOPCon solar panel with 17.8% efficiency. Backed by a 25-year warranty.
Standard Tier
350W
Wattage
17.8%
Efficiency
N-Type TOPCon
Cell Type
25 years
Warranty
Full Specifications
- Brand
- S-Energy
- Model
- SN 350W Plus
- Series
- SN
- Wattage
- 350W
- Module Efficiency
- 17.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 65-67" x 39-40"
- Weight
- 40 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $1.99
- Est. 7kW System Cost
- $13,930
- Est. 10kW System Cost
- $19,900
- Temperature Coefficient
- -0.25%/°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 |
|---|---|---|---|
| SunPower Maxeon 380W A | 380W | 20.8% | $3.63 |
| SunPower Performance 380W A | 380W | 20.8% | $3.63 |
| SunPower X-Series 380W A | 380W | 20.8% | $3.63 |
| SunPower E-Series 380W A | 380W | 20.8% | $3.63 |
Frequently Asked Questions
How much does a 350W S-Energy SN 350W Plus cost?
The S-Energy SN 350W Plus costs approximately $697 per panel ($$1.99/W). A typical 7kW system using this panel would cost around $13,930 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 S-Energy SN 350W Plus a good solar panel?
The S-Energy SN 350W Plus has 17.8% 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 350W Plus panels do I need?
For a typical 7kW residential system, you'd need approximately 20 panels. For a 10kW system, plan for about 29 panels. The exact number depends on your roof space, energy usage, and local sun hours.