Suniva — US
OPTimus 375W B Ultra
The Suniva OPTimus 375W B Ultra is a 375W PERC solar panel with 18.6% efficiency. Made in US. Backed by a 30-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus Eligible
375W
Wattage
18.6%
Efficiency
PERC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Suniva
- Model
- OPTimus 375W B Ultra
- Series
- OPTimus
- Wattage
- 375W
- Module Efficiency
- 18.6%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 42 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $2.50
- Est. 7kW System Cost
- $17,500
- Est. 10kW System Cost
- $25,000
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- No
- Origin
- US
- FEOC Status
- pass
Other Suniva Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| OPTimus 420W D | 420W | 20.2% | PERC | $3.03 |
| OPTimus 415W C All-Black | 415W | 20.1% | PERC | $3.00 |
| OPTimus 410W E Pro | 410W | 19.9% | PERC | $2.93 |
| OPTimus 410W B BF | 410W | 19.9% | PERC | $2.93 |
| OPTimus 405W A Ultra | 405W | 19.7% | PERC | $2.87 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon-40 HC | 405W | 21.7% | $4.00 |
| SunPower Maxeon 405W E Ultra | 405W | 21.7% | $4.00 |
| SunPower Maxeon 405W A Max | 405W | 21.7% | $4.00 |
| SunPower Performance-40 HC | 405W | 21.7% | $4.00 |
Frequently Asked Questions
How much does a 375W Suniva OPTimus 375W B Ultra cost?
The Suniva OPTimus 375W B Ultra costs approximately $938 per panel ($$2.50/W). A typical 7kW system using this panel would cost around $17,500 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 Suniva OPTimus 375W B Ultra a good solar panel?
The Suniva OPTimus 375W B Ultra has 18.6% 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 Suniva OPTimus 375W B Ultra panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 27 panels. The exact number depends on your roof space, energy usage, and local sun hours.