Segment Solar — US
SG 440W D
The Segment Solar SG 440W D is a 440W PERC solar panel with 21.2% efficiency. Made in US. Backed by a 30-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus EligibleBifacial
440W
Wattage
21.2%
Efficiency
PERC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Segment Solar
- Model
- SG 440W D
- Series
- SG
- Wattage
- 440W
- Module Efficiency
- 21.2%
- Cell Type
- PERC
- Dimensions
- 78-82" x 39-41"
- Weight
- 52 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $2.88
- Est. 7kW System Cost
- $20,160
- Est. 10kW System Cost
- $28,800
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- US
- FEOC Status
- pass
Other Segment Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| SG 435W C All-Black | 435W | 21% | N-Type TOPCon | $2.83 |
| SG 430W E Pro | 430W | 20.8% | N-Type TOPCon | $2.78 |
| SG 425W B BF | 425W | 20.7% | PERC | $2.75 |
| SG 420W A HC | 420W | 20.5% | N-Type TOPCon | $2.70 |
| SG 420W D Plus | 420W | 20.5% | PERC | $2.70 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| SunPower Maxeon 455W E Pro | 455W | 23.4% | $4.71 |
| Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| SunPower Maxeon 445W D Plus | 445W | 23.1% | $4.58 |
Frequently Asked Questions
How much does a 440W Segment Solar SG 440W D cost?
The Segment Solar SG 440W D costs approximately $1267 per panel ($$2.88/W). A typical 7kW system using this panel would cost around $20,160 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 Segment Solar SG 440W D a good solar panel?
The Segment Solar SG 440W 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. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Segment Solar SG 440W 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.