Suniva — US
OPTimus 355W B Black
The Suniva OPTimus 355W B Black is a 355W PERC solar panel with 17.8% efficiency. Made in US. Backed by a 25-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus Eligible
355W
Wattage
17.8%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Suniva
- Model
- OPTimus 355W B Black
- Series
- OPTimus
- Wattage
- 355W
- Module Efficiency
- 17.8%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 40 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.23
- Est. 7kW System Cost
- $15,610
- Est. 10kW System Cost
- $22,300
- 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 385-A Black | 385W | 21% | $3.71 |
| SunPower Maxeon 385W D HC | 385W | 21% | $3.71 |
| SunPower Performance 385-A Black | 385W | 21% | $3.71 |
| SunPower Performance 385W D HC | 385W | 21% | $3.71 |
Frequently Asked Questions
How much does a 355W Suniva OPTimus 355W B Black cost?
The Suniva OPTimus 355W B Black costs approximately $792 per panel ($$2.23/W). A typical 7kW system using this panel would cost around $15,610 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 355W B Black a good solar panel?
The Suniva OPTimus 355W B Black has 17.8% 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 Suniva OPTimus 355W B Black panels do I need?
For a typical 7kW residential system, you'd need approximately 20 panels. For a 10kW system, plan for about 29 panels. The exact number depends on your roof space, energy usage, and local sun hours.