Astronergy — China
CHSM 420W A Black
The Astronergy CHSM 420W A Black is a 420W N-Type TOPCon solar panel with 20.2% efficiency. Backed by a 12-year warranty.
Standard TierFEOC: RestrictedBifacial
420W
Wattage
20.2%
Efficiency
N-Type TOPCon
Cell Type
12 years
Warranty
Full Specifications
- Brand
- Astronergy
- Model
- CHSM 420W A Black
- Series
- CHSM
- Wattage
- 420W
- Module Efficiency
- 20.2%
- Cell Type
- N-Type TOPCon
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 12 years
- Est. Price Per Watt
- $2.16
- Est. 7kW System Cost
- $15,120
- Est. 10kW System Cost
- $21,600
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- Yes
- Origin
- China
- FEOC Status
- fail
Other Astronergy Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| CHSM 465W D | 465W | 21.6% | N-Type TOPCon | $2.58 |
| Dynamo 465W D | 465W | 21.6% | N-Type TOPCon | $2.58 |
| CHSM 460W C All-Black | 460W | 21.5% | PERC | $2.55 |
| Dynamo 460W C All-Black | 460W | 21.5% | PERC | $2.55 |
| CHSM 450W E Pro | 450W | 21.2% | PERC | $2.46 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 6 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 7 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon Air 450W D Plus | 450W | 23.3% | $4.61 |
Frequently Asked Questions
How much does a 420W Astronergy CHSM 420W A Black cost?
The Astronergy CHSM 420W A Black costs approximately $907 per panel ($$2.16/W). A typical 7kW system using this panel would cost around $15,120 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 Astronergy CHSM 420W A Black a good solar panel?
The Astronergy CHSM 420W A Black has 20.2% efficiency and a 12 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Astronergy CHSM 420W A 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.