Hyundai Energy — South Korea
HiISS 455W D
The Hyundai Energy HiISS 455W D is a 455W PERC solar panel with 21.7% efficiency. Backed by a 30-year warranty.
Standard TierBifacial
455W
Wattage
21.7%
Efficiency
PERC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Hyundai Energy
- Model
- HiISS 455W D
- Series
- HiISS
- Wattage
- 455W
- Module Efficiency
- 21.7%
- Cell Type
- PERC
- Dimensions
- 78-82" x 39-41"
- Weight
- 53 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $3.01
- Est. 7kW System Cost
- $21,070
- Est. 10kW System Cost
- $30,100
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- South Korea
- FEOC Status
- check
Other Hyundai Energy Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| HiISS 450W C All-Black | 450W | 21.5% | N-Type TOPCon | $2.95 |
| HiISS 445W E Pro | 445W | 21.4% | N-Type TOPCon | $2.92 |
| HiISS 440W B BF | 440W | 21.2% | PERC | $2.86 |
| HiISS 435W A HC | 435W | 21% | N-Type TOPCon | $2.80 |
| HiISS 435W D Plus | 435W | 21% | PERC | $2.80 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| SunPower Maxeon 455W E Pro | 455W | 23.4% | $4.71 |
| Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| SunPower Maxeon 445W D Plus | 445W | 23.1% | $4.58 |
Frequently Asked Questions
How much does a 455W Hyundai Energy HiISS 455W D cost?
The Hyundai Energy HiISS 455W D costs approximately $1370 per panel ($$3.01/W). A typical 7kW system using this panel would cost around $21,070 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 455W D a good solar panel?
The Hyundai Energy HiISS 455W D has 21.7% efficiency and a 30 years warranty, placing it in the standard tier. This is above-average efficiency, making it a strong choice.
How many Hyundai Energy HiISS 455W D panels do I need?
For a typical 7kW residential system, you'd need approximately 16 panels. For a 10kW system, plan for about 22 panels. The exact number depends on your roof space, energy usage, and local sun hours.