S-Energy — South Korea
SN 375-E Ultra
The S-Energy SN 375-E Ultra is a 375W PERC solar panel with 18.7% efficiency. Backed by a 25-year warranty.
Standard TierBifacial
375W
Wattage
18.7%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- S-Energy
- Model
- SN 375-E Ultra
- Series
- SN
- Wattage
- 375W
- Module Efficiency
- 18.7%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 42 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.26
- Est. 7kW System Cost
- $15,820
- Est. 10kW System Cost
- $22,600
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- South Korea
- FEOC Status
- check
Other S-Energy Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| SN 445W D | 445W | 21.2% | PERC | $3.01 |
| SN 440W C All-Black | 440W | 21% | N-Type TOPCon | $2.95 |
| SN 435W E Pro | 435W | 20.9% | N-Type TOPCon | $2.92 |
| SN 430W B BF | 430W | 20.7% | PERC | $2.86 |
| SN 425W A HC | 425W | 20.5% | N-Type TOPCon | $2.80 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon-40 HC | 405W | 21.7% | $4.00 |
| SunPower Maxeon 405W A Max | 405W | 21.7% | $4.00 |
| Maxeon 3 405W E BF | 405W | 21.6% | $3.72 |
| SunPower Maxeon-40 HD | 400W | 21.5% | $3.92 |
Frequently Asked Questions
How much does a 375W S-Energy SN 375-E Ultra cost?
The S-Energy SN 375-E Ultra costs approximately $847 per panel ($$2.26/W). A typical 7kW system using this panel would cost around $15,820 before incentives.
⚠ The 30% federal solar tax credit has ended — Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed 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 375-E Ultra a good solar panel?
The S-Energy SN 375-E Ultra has 18.7% 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 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.