Segment Solar — US
SG Max 420W A HC
The Segment Solar SG Max 420W A HC is a 420W N-Type TOPCon solar panel with 20.5% efficiency. Made in US. Backed by a 30-year warranty.
Standard Tier
🇺🇸 Domestic Content Bonus Eligible
420W
Wattage
20.5%
Efficiency
N-Type TOPCon
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Segment Solar
- Model
- SG Max 420W A HC
- Series
- SG Max
- Wattage
- 420W
- Module Efficiency
- 20.5%
- Cell Type
- N-Type TOPCon
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $2.70
- Est. 7kW System Cost
- $18,900
- Est. 10kW System Cost
- $27,000
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- US
- FEOC Status
- pass
Other Segment Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| SG 440W D | 440W | 21.2% | PERC | $2.88 |
| SG Plus 440W D | 440W | 21.2% | PERC | $2.88 |
| SG Max 440W D | 440W | 21.2% | PERC | $2.88 |
| SG 435W C All-Black | 435W | 21% | N-Type TOPCon | $2.83 |
| SG Plus 435W C All-Black | 435W | 21% | N-Type TOPCon | $2.83 |
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 Segment Solar SG Max 420W A HC cost?
The Segment Solar SG Max 420W A HC costs approximately $1134 per panel ($$2.70/W). A typical 7kW system using this panel would cost around $18,900 before incentives. After the 30% federal tax credit, your net cost drops to $13,230.
Is the Segment Solar SG Max 420W A HC a good solar panel?
The Segment Solar SG Max 420W A HC has 20.5% efficiency and a 30 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Segment Solar SG Max 420W A HC 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.