Solar4America — US
S4A Max-40 HC
The Solar4America S4A Max-40 HC is a 400W PERC solar panel with 20.0% efficiency. Made in US. Backed by a 25-year warranty.
Standard Tier
🇺🇸 Domestic Content Bonus Eligible
Bifacial
400W
Wattage
20%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Solar4America
- Model
- S4A Max-40 HC
- Series
- S4A Max
- Wattage
- 400W
- Module Efficiency
- 20%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.55
- Est. 7kW System Cost
- $17,850
- Est. 10kW System Cost
- $25,500
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- US
- FEOC Status
- pass
Other Solar4America Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| S4A 450W D | 450W | 21.7% | PERC | $2.97 |
| S4A Pro 450W D | 450W | 21.7% | PERC | $2.97 |
| S4A Max 450W D | 450W | 21.7% | PERC | $2.97 |
| S4A 445W C All-Black | 445W | 21.5% | N-Type TOPCon | $2.92 |
| S4A Pro 445W C All-Black | 445W | 21.5% | N-Type TOPCon | $2.92 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 430W E Max | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W B All-Black | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W C Black | 430W | 22.6% | $4.38 |
| SunPower Performance 430W E Max | 430W | 22.6% | $4.38 |
Frequently Asked Questions
How much does a 400W Solar4America S4A Max-40 HC cost?
The Solar4America S4A Max-40 HC costs approximately $1020 per panel ($$2.55/W). A typical 7kW system using this panel would cost around $17,850 before incentives. After the 30% federal tax credit, your net cost drops to $12,495.
Is the Solar4America S4A Max-40 HC a good solar panel?
The Solar4America S4A Max-40 HC has 20% 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 Solar4America S4A Max-40 HC panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 25 panels. The exact number depends on your roof space, energy usage, and local sun hours.