Canadian Solar — Canada/China
CS 400-B Silver
The Canadian Solar CS 400-B Silver is a 400W N-Type TOPCon solar panel with 19.7% efficiency. Backed by a 25-year warranty.
Standard TierFEOC: Restricted
400W
Wattage
19.7%
Efficiency
N-Type TOPCon
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Canadian Solar
- Model
- CS 400-B Silver
- Series
- CS
- Wattage
- 400W
- Module Efficiency
- 19.7%
- Cell Type
- N-Type TOPCon
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.19
- Est. 7kW System Cost
- $15,330
- Est. 10kW System Cost
- $21,900
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- Canada/China
- FEOC Status
- fail
Other Canadian Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| HiKu 490W D | 490W | 22.7% | N-Type TOPCon | $2.99 |
| BiHiKu 490W D | 490W | 22.7% | N-Type TOPCon | $2.99 |
| CS 490W D | 490W | 22.7% | N-Type TOPCon | $2.99 |
| KuMax 490W D | 490W | 22.7% | N-Type TOPCon | $2.99 |
| SuperPower 490W D | 490W | 22.7% | N-Type TOPCon | $2.99 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 430W E Max | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W B All-Black | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W C Black | 430W | 22.6% | $4.38 |
| SunPower Performance 430W E Max | 430W | 22.6% | $4.38 |
Frequently Asked Questions
How much does a 400W Canadian Solar CS 400-B Silver cost?
The Canadian Solar CS 400-B Silver costs approximately $876 per panel ($$2.19/W). A typical 7kW system using this panel would cost around $15,330 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 Canadian Solar CS 400-B Silver a good solar panel?
The Canadian Solar CS 400-B Silver has 19.7% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Canadian Solar CS 400-B Silver panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 25 panels. The exact number depends on your roof space, energy usage, and local sun hours.