Hyundai Energy — South Korea

HiISS 410W E Ultra

The Hyundai Energy HiISS 410W E Ultra is a 410W N-Type TOPCon solar panel with 20.1% efficiency. Backed by a 25-year warranty.

Standard Tier

410W

Wattage

20.1%

Efficiency

N-Type TOPCon

Cell Type

25 years

Warranty

Full Specifications

Brand
Hyundai Energy
Model
HiISS 410W E Ultra
Series
HiISS
Wattage
410W
Module Efficiency
20.1%
Cell Type
N-Type TOPCon
Dimensions
66-80" x 39-41"
Weight
47 lbs
Warranty
25 years
Est. Price Per Watt
$2.53
Est. 7kW System Cost
$17,710
Est. 10kW System Cost
$25,300
Temperature Coefficient
-0.25%/°C
Bifacial
No
Origin
South Korea
FEOC Status
check

Other Hyundai Energy Panels

ModelWattageEfficiencyCell$/W
HiISS 455W D455W21.7%PERC$3.01
HiISS 450W C All-Black450W21.5%N-Type TOPCon$2.95
HiISS 445W E Pro445W21.4%N-Type TOPCon$2.92
HiISS 440W B BF440W21.2%PERC$2.86
HiISS 435W A HC435W21%N-Type TOPCon$2.80

Similar Wattage Panels (Competitors)

PanelWattageEfficiency$/W
SunPower Maxeon 440W C440W22.9%$4.50
Maxeon 3 440W C440W22.9%$4.40
SunPower Maxeon 435W A Ultra435W22.7%$4.42
Maxeon 3 435W E Max435W22.7%$4.29

Frequently Asked Questions

How much does a 410W Hyundai Energy HiISS 410W E Ultra cost?
The Hyundai Energy HiISS 410W E Ultra costs approximately $1037 per panel ($$2.53/W). A typical 7kW system using this panel would cost around $17,710 before incentives.

⚠ The 30% federal solar tax credit has ended — Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed 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 Hyundai Energy HiISS 410W E Ultra a good solar panel?
The Hyundai Energy HiISS 410W E Ultra has 20.1% 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 Hyundai Energy HiISS 410W E Ultra panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 25 panels. The exact number depends on your roof space, energy usage, and local sun hours.

Written & reviewed by

EnergyTools Research Team — Solar Energy Research Group

The EnergyTools Research Team compiles and verifies residential solar data from NREL, EPA, and state utility commissions. Methodology is reviewed quarterly.

  • Source data: NREL PVWatts V8 + Utility Rates V3 APIs
  • Source data: EPA FuelEconomy.gov vehicle efficiency data
  • Methodology reviewed quarterly

Methodology & data sources:NREL PVWatts, EIA, state utility commissions· Updated 2026.