Qcells — South Korea/US

Q.PEAK 435W A Black

The Qcells Q.PEAK 435W A Black is a 435W N-Type TOPCon solar panel with 21.2% efficiency. Backed by a 25-year warranty.

Premium TierBifacial

435W

Wattage

21.2%

Efficiency

N-Type TOPCon

Cell Type

25 years

Warranty

Full Specifications

Brand
Qcells
Model
Q.PEAK 435W A Black
Series
Q.PEAK
Wattage
435W
Module Efficiency
21.2%
Cell Type
N-Type TOPCon
Dimensions
66-80" x 39-41"
Weight
49 lbs
Warranty
25 years
Est. Price Per Watt
$2.96
Est. 7kW System Cost
$20,720
Est. 10kW System Cost
$29,600
Temperature Coefficient
-0.25%/°C
Bifacial
Yes
Origin
South Korea/US
FEOC Status
check

Other Qcells Panels

ModelWattageEfficiencyCell$/W
Q.TRON 475W E Pro475W22.7%PERC$3.36
Q.PEAK 475W E Pro475W22.7%PERC$3.36
Q.PLUS 475W E Pro475W22.7%PERC$3.36
Q.PEAK DUO 475W E Pro475W22.7%PERC$3.36
Q.MAX 475W E Pro475W22.7%PERC$3.36

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 435W Qcells Q.PEAK 435W A Black cost?
The Qcells Q.PEAK 435W A Black costs approximately $1288 per panel ($$2.96/W). A typical 7kW system using this panel would cost around $20,720 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 Qcells Q.PEAK 435W A Black a good solar panel?
The Qcells Q.PEAK 435W A Black has 21.2% efficiency and a 25 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice.
How many Qcells Q.PEAK 435W A Black panels do I need?
For a typical 7kW residential system, you'd need approximately 17 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.