JA Solar — China

JAM72 455W C

The JA Solar JAM72 455W C is a 455W PERC solar panel with 21.6% efficiency. Backed by a 30-year warranty.

Standard TierFEOC: Restricted

455W

Wattage

21.6%

Efficiency

PERC

Cell Type

30 years

Warranty

Full Specifications

Brand
JA Solar
Model
JAM72 455W C
Series
JAM72
Wattage
455W
Module Efficiency
21.6%
Cell Type
PERC
Dimensions
78-82" x 39-41"
Weight
53 lbs
Warranty
30 years
Est. Price Per Watt
$2.41
Est. 7kW System Cost
$16,870
Est. 10kW System Cost
$24,100
Temperature Coefficient
-0.35%/°C
Bifacial
No
Origin
China
FEOC Status
fail

Other JA Solar Panels

ModelWattageEfficiencyCell$/W
JAM 485W D485W22.8%N-Type TOPCon$2.69
DeepBlue 485W D485W22.8%N-Type TOPCon$2.69
JAM72 485W D485W22.8%N-Type TOPCon$2.69
JAM54 485W D485W22.8%N-Type TOPCon$2.69
DeepBlue 3.0 485W D485W22.8%N-Type TOPCon$2.69

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
Maxeon Maxeon 3 455W E Pro455W23.5%$4.72
Maxeon Maxeon 6 455W E Pro455W23.5%$4.72
Maxeon Maxeon 7 455W E Pro455W23.5%$4.72
Maxeon Maxeon Air 455W E Pro455W23.5%$4.72

Frequently Asked Questions

How much does a 455W JA Solar JAM72 455W C cost?
The JA Solar JAM72 455W C costs approximately $1097 per panel ($$2.41/W). A typical 7kW system using this panel would cost around $16,870 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 JA Solar JAM72 455W C a good solar panel?
The JA Solar JAM72 455W C has 21.6% efficiency and a 30 years warranty, placing it in the standard tier. This is above-average efficiency, making it a strong choice.
How many JA Solar JAM72 455W C panels do I need?
For a typical 7kW residential system, you'd need approximately 16 panels. For a 10kW system, plan for about 22 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

  • 10+ years analyzing residential solar economics and payback modeling
  • Lead researcher for EnergyTools' 50-state solar cost-per-watt database
  • Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.