BYD — China

Premium 445W E Max

The BYD Premium 445W E Max is a 445W N-Type TOPCon solar panel with 20.5% efficiency. Backed by a 17-year warranty.

Budget TierFEOC: Restricted

445W

Wattage

20.5%

Efficiency

N-Type TOPCon

Cell Type

17 years

Warranty

Full Specifications

Brand
BYD
Model
Premium 445W E Max
Series
Premium
Wattage
445W
Module Efficiency
20.5%
Cell Type
N-Type TOPCon
Dimensions
78-82" x 39-41"
Weight
52 lbs
Warranty
17 years
Est. Price Per Watt
$2.20
Est. 7kW System Cost
$15,400
Est. 10kW System Cost
$22,000
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
China
FEOC Status
fail

Other BYD Panels

ModelWattageEfficiencyCell$/W
Premium 460W D Plus460W21%PERC$2.38
Standard 460W D Plus460W21%PERC$2.38
Premium Plus 460W D Plus460W21%PERC$2.38
Premium 455W C455W20.8%N-Type TOPCon$2.31
Standard 455W C455W20.8%N-Type TOPCon$2.31

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 445W BYD Premium 445W E Max cost?
The BYD Premium 445W E Max costs approximately $979 per panel ($$2.20/W). A typical 7kW system using this panel would cost around $15,400 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 BYD Premium 445W E Max a good solar panel?
The BYD Premium 445W E Max has 20.5% efficiency and a 17 years warranty, placing it in the budget tier. This is a solid mid-range panel suitable for most residential installations.
How many BYD Premium 445W E Max panels do I need?
For a typical 7kW residential system, you'd need approximately 16 panels. For a 10kW system, plan for about 23 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.