Segment Solar — US
SG Plus 370-A Black
The Segment Solar SG Plus 370-A Black is a 370W N-Type TOPCon solar panel with 18.8% efficiency. Made in US. Backed by a 25-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus Eligible
370W
Wattage
18.8%
Efficiency
N-Type TOPCon
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Segment Solar
- Model
- SG Plus 370-A Black
- Series
- SG Plus
- Wattage
- 370W
- Module Efficiency
- 18.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 65-67" x 39-40"
- Weight
- 42 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.28
- Est. 7kW System Cost
- $15,960
- Est. 10kW System Cost
- $22,800
- 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 |
|---|---|---|---|
| SunPower Maxeon-40 HD | 400W | 21.5% | $3.92 |
| SunPower Maxeon 400W D Max | 400W | 21.5% | $3.92 |
| SunPower Maxeon 400W C Silver | 400W | 21.5% | $3.92 |
| SunPower Performance-40 HD | 400W | 21.5% | $3.92 |
Frequently Asked Questions
How much does a 370W Segment Solar SG Plus 370-A Black cost?
The Segment Solar SG Plus 370-A Black costs approximately $844 per panel ($$2.28/W). A typical 7kW system using this panel would cost around $15,960 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 Segment Solar SG Plus 370-A Black a good solar panel?
The Segment Solar SG Plus 370-A Black has 18.8% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Segment Solar SG Plus 370-A Black panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 28 panels. The exact number depends on your roof space, energy usage, and local sun hours.