ReneSola — China
Virtus 420W E Max
The ReneSola Virtus 420W E Max is a 420W PERC solar panel with 19.5% efficiency. Backed by a 17-year warranty.
Budget TierFEOC: Restricted
420W
Wattage
19.5%
Efficiency
PERC
Cell Type
17 years
Warranty
Full Specifications
- Brand
- ReneSola
- Model
- Virtus 420W E Max
- Series
- Virtus
- Wattage
- 420W
- Module Efficiency
- 19.5%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 17 years
- Est. Price Per Watt
- $2.10
- Est. 7kW System Cost
- $14,700
- Est. 10kW System Cost
- $21,000
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- No
- Origin
- China
- FEOC Status
- fail
Other ReneSola Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| Virtus 435W D Plus | 435W | 20% | PERC | $2.25 |
| Virtus 430W C | 430W | 19.8% | PERC | $2.19 |
| Virtus 425W A Ultra | 425W | 19.7% | PERC | $2.16 |
| Virtus 415W E HC | 415W | 19.3% | PERC | $2.04 |
| Virtus 410W D Pro | 410W | 19.2% | PERC | $2.01 |
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 ReneSola Virtus 420W E Max cost?
The ReneSola Virtus 420W E Max costs approximately $882 per panel ($$2.10/W). A typical 7kW system using this panel would cost around $14,700 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 ReneSola Virtus 420W E Max a good solar panel?
The ReneSola Virtus 420W E Max has 19.5% efficiency and a 17 years warranty, placing it in the budget tier. This is a solid mid-range panel suitable for most residential installations.
How many ReneSola Virtus 420W E Max 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.