Panasonic — Japan

HIT 395W B

The Panasonic HIT 395W B is a 395W HJT solar panel with 20.9% 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

395W

Wattage

20.9%

Efficiency

HJT

Cell Type

25 years

Warranty

Full Specifications

Brand
Panasonic
Model
HIT 395W B
Series
HIT
Wattage
395W
Module Efficiency
20.9%
Cell Type
HJT
Dimensions
65-67" x 39-40"
Weight
44 lbs
Warranty
25 years
Est. Price Per Watt
$3.42
Est. 7kW System Cost
$23,940
Est. 10kW System Cost
$34,200
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
Japan
FEOC Status
likely_pass

Other Panasonic Panels

ModelWattageEfficiencyCell$/W
HIT 425W E Pro425W22.5%HJT$4.18
HIT 420W D Plus420W22.3%HJT$4.08
HIT 420W A Ultra420W22.3%HJT$4.08
HIT 415W C415W22%HJT$3.94
HIT 415W E Max415W22%HJT$3.94

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 425W E HC425W22.4%$4.29
SunPower Maxeon 425W D Pro425W22.4%$4.29
Maxeon 3 425W C Plus425W22.3%$4.08
SunPower Maxeon 420W B Silver420W22.2%$4.21

Frequently Asked Questions

How much does a 395W Panasonic HIT 395W B cost?
The Panasonic HIT 395W B costs approximately $1351 per panel ($$3.42/W). A typical 7kW system using this panel would cost around $23,940 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 395W B a good solar panel?
The Panasonic HIT 395W B has 20.9% 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 395W B panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 26 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

EnergyTools Research Team — Solar Energy Research Group

The EnergyTools Research Team compiles and verifies residential solar data from NREL, EPA, and state utility commissions. Methodology is reviewed quarterly.

  • Source data: NREL PVWatts V8 + Utility Rates V3 APIs
  • Source data: EPA FuelEconomy.gov vehicle efficiency data
  • Methodology reviewed quarterly

Methodology & data sources:NREL PVWatts, EIA, state utility commissions· Updated 2026.