S-Energy — South Korea
SNE 420W A Ultra
The S-Energy SNE 420W A Ultra is a 420W PERC solar panel with 20.3% efficiency. Backed by a 25-year warranty.
Standard Tier
420W
Wattage
20.3%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- S-Energy
- Model
- SNE 420W A Ultra
- Series
- SNE
- Wattage
- 420W
- Module Efficiency
- 20.3%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.74
- Est. 7kW System Cost
- $19,180
- Est. 10kW System Cost
- $27,400
- 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 |
|---|---|---|---|
| Maxeon Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 6 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 7 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon Air 450W D Plus | 450W | 23.3% | $4.61 |
Frequently Asked Questions
How much does a 420W S-Energy SNE 420W A Ultra cost?
The S-Energy SNE 420W A Ultra costs approximately $1151 per panel ($$2.74/W). A typical 7kW system using this panel would cost around $19,180 before incentives. After the 30% federal tax credit, your net cost drops to $13,426.
Is the S-Energy SNE 420W A Ultra a good solar panel?
The S-Energy SNE 420W A Ultra has 20.3% 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 SNE 420W A Ultra panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.