Suniva — US
OPTimus 420W D
The Suniva OPTimus 420W D is a 420W PERC solar panel with 20.2% efficiency. Made in US. Backed by a 30-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus EligibleBifacial
420W
Wattage
20.2%
Efficiency
PERC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Suniva
- Model
- OPTimus 420W D
- Series
- OPTimus
- Wattage
- 420W
- Module Efficiency
- 20.2%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $3.03
- Est. 7kW System Cost
- $21,210
- Est. 10kW System Cost
- $30,300
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- US
- FEOC Status
- pass
Other Suniva Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| OPTimus 415W C All-Black | 415W | 20.1% | PERC | $3.00 |
| OPTimus 410W B BF | 410W | 19.9% | PERC | $2.93 |
| OPTimus 405W D Plus | 405W | 19.7% | PERC | $2.87 |
| OPTimus 405W A Ultra | 405W | 19.7% | PERC | $2.87 |
| OPTimus 400W C | 400W | 19.5% | PERC | $2.80 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| SunPower Maxeon 445W D Plus | 445W | 23.1% | $4.58 |
| Maxeon 3 445W A Ultra | 445W | 23.1% | $4.51 |
| SunPower Maxeon 440W C | 440W | 22.9% | $4.50 |
Frequently Asked Questions
How much does a 420W Suniva OPTimus 420W D cost?
The Suniva OPTimus 420W D costs approximately $1273 per panel ($$3.03/W). A typical 7kW system using this panel would cost around $21,210 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 Suniva OPTimus 420W D a good solar panel?
The Suniva OPTimus 420W D has 20.2% 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 420W D panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.