Panasonic — Japan
HIT 400W C Black
The Panasonic HIT 400W C Black is a 400W HJT solar panel with 21.1% efficiency. Made in Japan. Backed by a 30-year warranty.
Discontinued panel — still supported for existing owners. Panasonic ended in-house solar panel manufacturing in 2022 Specs below reflect the final production version.
Premium Tier
400W
Wattage
21.1%
Efficiency
HJT
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Panasonic
- Model
- HIT 400W C Black
- Series
- HIT
- Wattage
- 400W
- Module Efficiency
- 21.1%
- Cell Type
- HJT
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $3.52
- Est. 7kW System Cost
- $24,640
- Est. 10kW System Cost
- $35,200
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- Japan
- FEOC Status
- likely_pass
Other Panasonic Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| HIT 425W E Pro | 425W | 22.5% | HJT | $4.18 |
| HIT 420W D Plus | 420W | 22.3% | HJT | $4.08 |
| HIT 420W A Ultra | 420W | 22.3% | HJT | $4.08 |
| HIT 415W C | 415W | 22% | HJT | $3.94 |
| HIT 415W E Max | 415W | 22% | HJT | $3.94 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 430W E Max | 430W | 22.6% | $4.38 |
| SunPower Maxeon 430W C Black | 430W | 22.6% | $4.38 |
| Maxeon 3 430W E HC | 430W | 22.5% | $4.19 |
| SunPower Maxeon 425W E HC | 425W | 22.4% | $4.29 |
Frequently Asked Questions
How much does a 400W Panasonic HIT 400W C Black cost?
The Panasonic HIT 400W C Black costs approximately $1408 per panel ($$3.52/W). A typical 7kW system using this panel would cost around $24,640 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 Panasonic HIT 400W C Black a good solar panel?
The Panasonic HIT 400W C Black has 21.1% efficiency and a 30 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice.
How many Panasonic HIT 400W C Black 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.