S-Energy — South Korea
SN 445W D
The S-Energy SN 445W D is a 445W PERC solar panel with 21.2% efficiency. Backed by a 30-year warranty.
Standard TierBifacial
445W
Wattage
21.2%
Efficiency
PERC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- S-Energy
- Model
- SN 445W D
- Series
- SN
- Wattage
- 445W
- Module Efficiency
- 21.2%
- Cell Type
- PERC
- Dimensions
- 78-82" x 39-41"
- Weight
- 52 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $3.01
- Est. 7kW System Cost
- $21,070
- Est. 10kW System Cost
- $30,100
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- South Korea
- FEOC Status
- check
Other S-Energy Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| 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 |
| SN Plus 440W C All-Black | 440W | 21% | N-Type TOPCon | $2.95 |
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 445W S-Energy SN 445W D cost?
The S-Energy SN 445W D costs approximately $1339 per panel ($$3.01/W). A typical 7kW system using this panel would cost around $21,070 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 445W D a good solar panel?
The S-Energy SN 445W D has 21.2% efficiency and a 30 years warranty, placing it in the standard tier. This is above-average efficiency, making it a strong choice.
How many S-Energy SN 445W D panels do I need?
For a typical 7kW residential system, you'd need approximately 16 panels. For a 10kW system, plan for about 23 panels. The exact number depends on your roof space, energy usage, and local sun hours.