Panasonic — Japan
HIT 370W Pro
The Panasonic HIT 370W Pro is a 370W HJT solar panel with 19.4% efficiency. Made in Japan. Backed by a 25-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
370W
Wattage
19.4%
Efficiency
HJT
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Panasonic
- Model
- HIT 370W Pro
- Series
- HIT
- Wattage
- 370W
- Module Efficiency
- 19.4%
- Cell Type
- HJT
- Dimensions
- 65-67" x 39-40"
- Weight
- 42 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.72
- Est. 7kW System Cost
- $19,040
- Est. 10kW System Cost
- $27,200
- 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-40 HD | 400W | 21.5% | $3.92 |
| SunPower Maxeon 395W E BF | 395W | 21.4% | $3.87 |
| Maxeon 3 400-A Black | 400W | 21.4% | $3.61 |
| Maxeon 3 395W A | 395W | 21.2% | $3.51 |
Frequently Asked Questions
How much does a 370W Panasonic HIT 370W Pro cost?
The Panasonic HIT 370W Pro costs approximately $1006 per panel ($$2.72/W). A typical 7kW system using this panel would cost around $19,040 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 370W Pro a good solar panel?
The Panasonic HIT 370W Pro has 19.4% efficiency and a 25 years warranty, placing it in the premium tier. This is a solid mid-range panel suitable for most residential installations.
How many Panasonic HIT 370W Pro panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 28 panels. The exact number depends on your roof space, energy usage, and local sun hours.