Panasonic — Japan
HIT Plus-40 HD
The Panasonic HIT Plus-40 HD is a 400W HJT solar panel with 21.1% efficiency. Made in Japan. Backed by a 25-year warranty.
Premium Tier
400W
Wattage
21.1%
Efficiency
HJT
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Panasonic
- Model
- HIT Plus-40 HD
- Series
- HIT Plus
- Wattage
- 400W
- Module Efficiency
- 21.1%
- Cell Type
- HJT
- Dimensions
- 66-80" x 39-41"
- Weight
- 46 lbs
- Warranty
- 25 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 |
|---|---|---|---|---|
| EverVolt 425W E Pro | 425W | 22.5% | HJT | $4.18 |
| EverVolt VK 425W E Pro | 425W | 22.5% | HJT | $4.18 |
| HIT 425W E Pro | 425W | 22.5% | HJT | $4.18 |
| HIT Plus 425W E Pro | 425W | 22.5% | HJT | $4.18 |
| EverVolt 420W A Ultra | 420W | 22.3% | HJT | $4.08 |
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 Panasonic HIT Plus-40 HD cost?
The Panasonic HIT Plus-40 HD 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 (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 Panasonic HIT Plus-40 HD a good solar panel?
The Panasonic HIT Plus-40 HD has 21.1% efficiency and a 25 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice.
How many Panasonic HIT Plus-40 HD 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.