Heliene — Canada

Heliene 350W

The Heliene Heliene 350W is a 350W PERC solar panel with 17.8% efficiency. Backed by a 25-year warranty.

Standard TierBifacial

350W

Wattage

17.8%

Efficiency

PERC

Cell Type

25 years

Warranty

Full Specifications

Brand
Heliene
Model
Heliene 350W
Series
Heliene
Wattage
350W
Module Efficiency
17.8%
Cell Type
PERC
Dimensions
65-67" x 39-40"
Weight
40 lbs
Warranty
25 years
Est. Price Per Watt
$1.99
Est. 7kW System Cost
$13,930
Est. 10kW System Cost
$19,900
Temperature Coefficient
-0.35%/°C
Bifacial
Yes
Origin
Canada
FEOC Status
unknown

Other Heliene Panels

ModelWattageEfficiencyCell$/W
Heliene 445W D445W21.2%PERC$3.01
Heliene 440W C All-Black440W21%N-Type TOPCon$2.95
Heliene 435W E Pro435W20.9%N-Type TOPCon$2.92
Heliene 430W B BF430W20.7%PERC$2.86
Heliene 425W D Plus425W20.5%PERC$2.80

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 380W A380W20.8%$3.63
SunPower Performance 380W A380W20.8%$3.63
SunPower X-Series 380W A380W20.8%$3.63
SunPower E-Series 380W A380W20.8%$3.63

Frequently Asked Questions

How much does a 350W Heliene Heliene 350W cost?
The Heliene Heliene 350W costs approximately $697 per panel ($$1.99/W). A typical 7kW system using this panel would cost around $13,930 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 Heliene Heliene 350W a good solar panel?
The Heliene Heliene 350W has 17.8% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Heliene Heliene 350W panels do I need?
For a typical 7kW residential system, you'd need approximately 20 panels. For a 10kW system, plan for about 29 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.