Qcells — South Korea/US

Q.PEAK DUO-37 BF

The Qcells Q.PEAK DUO-37 BF is a 375W PERC solar panel with 18.9% efficiency. Backed by a 25-year warranty.

Premium TierBifacial

375W

Wattage

18.9%

Efficiency

PERC

Cell Type

25 years

Warranty

Full Specifications

Brand
Qcells
Model
Q.PEAK DUO-37 BF
Series
Q.PEAK DUO
Wattage
375W
Module Efficiency
18.9%
Cell Type
PERC
Dimensions
65-67" x 39-40"
Weight
42 lbs
Warranty
25 years
Est. Price Per Watt
$2.34
Est. 7kW System Cost
$16,380
Est. 10kW System Cost
$23,400
Temperature Coefficient
-0.35%/°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
SunPower Maxeon-40 HC405W21.7%$4.00
SunPower Maxeon 405W E Ultra405W21.7%$4.00
SunPower Maxeon 405W A Max405W21.7%$4.00
SunPower Performance-40 HC405W21.7%$4.00

Frequently Asked Questions

How much does a 375W Qcells Q.PEAK DUO-37 BF cost?
The Qcells Q.PEAK DUO-37 BF costs approximately $878 per panel ($$2.34/W). A typical 7kW system using this panel would cost around $16,380 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 DUO-37 BF a good solar panel?
The Qcells Q.PEAK DUO-37 BF has 18.9% 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 Qcells Q.PEAK DUO-37 BF panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 27 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.