Qcells — South Korea/US

Q.PEAK 370W Plus

The Qcells Q.PEAK 370W Plus is a 370W PERC solar panel with 18.8% efficiency. Backed by a 25-year warranty.

Premium Tier

370W

Wattage

18.8%

Efficiency

PERC

Cell Type

25 years

Warranty

Full Specifications

Brand
Qcells
Model
Q.PEAK 370W Plus
Series
Q.PEAK
Wattage
370W
Module Efficiency
18.8%
Cell Type
PERC
Dimensions
65-67" x 39-40"
Weight
42 lbs
Warranty
25 years
Est. Price Per Watt
$2.31
Est. 7kW System Cost
$16,170
Est. 10kW System Cost
$23,100
Temperature Coefficient
-0.35%/°C
Bifacial
No
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 HD400W21.5%$3.92
SunPower Maxeon 400W D Max400W21.5%$3.92
SunPower Maxeon 400W C Silver400W21.5%$3.92
SunPower Performance-40 HD400W21.5%$3.92

Frequently Asked Questions

How much does a 370W Qcells Q.PEAK 370W Plus cost?
The Qcells Q.PEAK 370W Plus costs approximately $855 per panel ($$2.31/W). A typical 7kW system using this panel would cost around $16,170 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 370W Plus a good solar panel?
The Qcells Q.PEAK 370W Plus has 18.8% 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 370W Plus panels do I need?
For a typical 7kW residential system, you'd need approximately 19 panels. For a 10kW system, plan for about 28 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.