Yingli Solar — China
YL 420W B All-Black
The Yingli Solar YL 420W B All-Black is a 420W PERC solar panel with 19.5% efficiency. Backed by a 17-year warranty.
Budget TierFEOC: RestrictedBifacial
420W
Wattage
19.5%
Efficiency
PERC
Cell Type
17 years
Warranty
Full Specifications
- Brand
- Yingli Solar
- Model
- YL 420W B All-Black
- Series
- YL
- 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
- Yes
- Origin
- China
- FEOC Status
- fail
Other Yingli Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| YL 435W D Plus | 435W | 19.9% | PERC | $2.22 |
| YL 430W C | 430W | 19.8% | PERC | $2.19 |
| YL 425W A Ultra | 425W | 19.6% | PERC | $2.13 |
| YL 415W A BF | 415W | 19.4% | PERC | $2.07 |
| YL 410W E HC | 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 Yingli Solar YL 420W B All-Black cost?
The Yingli Solar YL 420W B All-Black 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 Yingli Solar YL 420W B All-Black a good solar panel?
The Yingli Solar YL 420W B All-Black 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 Yingli Solar YL 420W B All-Black 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.