Solaria PowerXT 430R vs Hyundai HiE-S485VG

Our Verdict Winner: Hyundai HiE-S485VG

The Hyundai HiE-S485VG wins this comparison by a clear margin. It leads in efficiency (22% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Hyundai HiE-S485VG is the stronger choice.

Power / Capacity
430W
vs
485W
Efficiency
21.3%
vs
22%
Warranty
25 yrs
vs
25 yrs

Key Differences

  • • Solaria PowerXT 430R is rated at 430W while Hyundai HiE-S485VG is rated at 485W, a 55W difference.
  • • Hyundai HiE-S485VG achieves 22% efficiency vs 21.3% for the other, a 0.7 percentage point gap.
  • • Both carry matching 25-year product warranties.
  • • Hyundai HiE-S485VG has a superior temperature coefficient of -0.3%/°C vs -0.34%/°C, retaining more power in hot climates.
  • • Solaria PowerXT 430R uses Shingled Mono PERC cells while Hyundai HiE-S485VG uses TOPCon N-type cells, representing different technology generations.

Specifications Breakdown

Module Efficiency

The Hyundai HiE-S485VG achieves 22% module efficiency compared to Solaria PowerXT 430R's 21.3%, meaning Hyundai HiE-S485VG converts 0.7 percentage points more sunlight into electricity per square meter. In practical terms, the Solaria PowerXT 430R produces 212.9 watts per square meter of panel area while the Hyundai HiE-S485VG produces 222.9 W/m². For rooftop installations where space is limited, this efficiency gap determines how many kilowatts you can fit on your available roof area. Over a 25-year system life, even a small efficiency advantage compounds into meaningful additional energy production.

Power Output

The Hyundai HiE-S485VG delivers 485W per panel versus 430W for the Solaria PowerXT 430R, a 55W difference per module. To build an 8 kW residential system, you would need 19 Solaria PowerXT 430R panels or 17 Hyundai HiE-S485VG panels. Choosing the higher-wattage option saves 2 panels, reducing total racking hardware, wiring, and installation labor costs. Higher wattage per panel is particularly valuable for commercial-scale installations where panel count directly impacts balance-of-system costs.

Temperature Coefficient

The Hyundai HiE-S485VG has a temperature coefficient of -0.3%/°C versus -0.34%/°C for the Solaria PowerXT 430R. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Hyundai HiE-S485VG retains 94.0% of its rated power while the other retains 93.2%. While the numerical gap is modest, it still accumulates over decades of summer production, especially in southern latitudes with prolonged peak heat hours.

Warranty Coverage

The Solaria PowerXT 430R is backed by a 25-year product warranty and 25-year performance guarantee, while the Hyundai HiE-S485VG offers 25-year product and 25-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (1.5% first year then 0.4%/year for Solaria PowerXT 430R; 1% first year then 0.4%/year for Hyundai HiE-S485VG), after 25 years the Solaria PowerXT 430R should retain approximately 88.9% of original output versus 89.4% for the Hyundai HiE-S485VG. The end-of-life output levels are closely matched.

Physical Dimensions & Weight

The Solaria PowerXT 430R measures 1879×1075×40mm and weighs 22 kg, while the Hyundai HiE-S485VG measures 2094×1039×35mm at 24.5 kg. 2.02 m² of panel area for the Solaria PowerXT 430R versus 2.18 m² for the Hyundai HiE-S485VG. The Solaria PowerXT 430R is 2.5 kg lighter per panel, which reduces structural load requirements on the roof and makes handling easier during installation. For a 20-panel system, that is a total weight difference of 50 kg. The more compact Solaria PowerXT 430R may be easier to fit on irregularly shaped or space-limited rooftops.

Specification Comparison

Specification Solaria PowerXT 430R Hyundai HiE-S485VG
Power 430W 485W
Efficiency 21.3% 22%
Power Density 19.8 W/sq ft 20.7 W/sq ft
Cell Type Shingled Mono PERC TOPCon N-type
Bifacial No No
Weight 22 kg 24.5 kg
Temp Coefficient -0.34%/°C -0.3%/°C
Snow Load 5400 Pa 5400 Pa
Wind Load 2400 Pa 2400 Pa
Product Warranty 25 years 25 years
Performance Warranty 25 years 25 years
Degradation (Year 1) 1.5% 1%
Annual Degradation 0.4% 0.4%
Country USA South Korea

5-Dimension Head-to-Head Analysis

1. Efficiency & Power Density

Winner: Hyundai HiE-S485VG

The Hyundai HiE-S485VG achieves 22% efficiency versus 21.3% — a 0.7 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.6 kW more total system capacity, or 8 kWh more annual production in an average US location.

2. Hot Climate Performance

Winner: Hyundai HiE-S485VG

The Hyundai HiE-S485VG has a better temperature coefficient of -0.3%/°C versus -0.34%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.0% of rated power versus 93.2%. The difference is modest but accumulates over 25 years of summer production.

3. Durability & Warranty

Winner: Tie

Both panels offer identical 25-year product warranties and 0.4% annual degradation. Neither has a durability advantage.

4. Power Output

Winner: Hyundai HiE-S485VG

The Hyundai HiE-S485VG delivers 485W versus 430W per panel — 55W more. For an 8 kW system, you need 17 panels with the higher-wattage option versus 19 panels, saving 2 panels and the associated racking and labor costs.

5. Cell Technology

Winner: Hyundai HiE-S485VG

The Solaria PowerXT 430R uses Shingled Mono PERC: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. The Hyundai HiE-S485VG uses TOPCon N-type: TOPCon (Tunnel Oxide Passivated Contact) adds a thin tunnel oxide layer to reduce recombination losses, achieving higher efficiency than PERC while being manufacturable on existing production lines. TOPCon N-type represents a newer generation technology with a longer performance runway as manufacturing matures.

Solaria PowerXT 430R

The Solaria PowerXT 430R is a US-manufactured shingled-cell solar panel that eliminates traditional busbars and cell gaps to maximize active cell area and deliver a sleek, uniform all-black appearance. Shingled cell technology overlaps cell strips like roof shingles, reducing inactive area by approximately 50% compared to traditional half-cut designs. This results in more power from the same panel area and improved shade tolerance due to the shingled cell interconnection pattern. Made in Fremont, California, the PowerXT qualifies for domestic content bonus ITC credits.

Pros

  • + Shingled cell technology — more power per square foot than traditional panels
  • + Sleek all-black appearance with no visible busbars or cell gaps
  • + Made in USA (Fremont, CA) — qualifies for domestic content ITC bonus
  • + Enhanced shade tolerance from shingled interconnection pattern
  • + 25-year product and performance warranties
  • + No hot spots — shingled design eliminates busbar-related failures

Cons

  • - Premium pricing for US-manufactured shingled technology
  • - 430W is competitive but not class-leading for this panel size
  • - Shingled cell technology has less field history than traditional designs
  • - Limited to Solaria-authorized installer network
View full Solaria PowerXT 430R specs →

Hyundai HiE-S485VG

The Hyundai HiE-S485VG is a 485W TOPCon N-type panel manufactured in South Korea by Hyundai Energy Solutions, a division of the Hyundai conglomerate. The N-type TOPCon cell technology delivers 22.0% module efficiency with a -0.30%/°C temperature coefficient — significantly better than PERC alternatives in hot climates. Hyundai's Korean manufacturing offers non-Chinese supply chain diversification for buyers concerned about tariffs or UFLPA compliance. The 25+25 year warranty is backed by the Hyundai corporate group's financial stability.

Pros

  • + South Korean manufacturing — non-Chinese supply chain diversification
  • + TOPCon N-type with 22.0% efficiency and -0.30%/°C temp coefficient
  • + Backed by Hyundai conglomerate's financial strength for warranty assurance
  • + 25-year product and performance warranties
  • + Lower degradation than PERC — 1.0% first year, 0.4% annual
  • + Competitively priced for a non-Chinese Tier-1 panel

Cons

  • - Lower brand recognition in US solar market than LONGi or JinkoSolar
  • - 132-cell format slightly larger than standard 108/120-cell residential panels
  • - US dealer network smaller than mainstream brands
  • - 485W is mid-range — competitors offer 500W+ in similar sizes
View full Hyundai HiE-S485VG specs →

Choose Solaria PowerXT 430R If...

  • ✓ US homeowners who prioritize American-made panels with a premium all-black aesthetic and want domestic content ITC bonus eligibility.

Choose Hyundai HiE-S485VG If...

  • ✓ Your roof space is limited and you need maximum power per panel
  • ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
  • ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
  • ✓ You prefer newer cell technology with a longer performance improvement runway
  • ✓ Homeowners and commercial buyers seeking Tier-1 Korean-manufactured TOPCon panels with strong corporate warranty backing and non-Chinese supply chain.

Our Recommendation

Recommended Hyundai HiE-S485VG

We recommend the Hyundai HiE-S485VG for most buyers in this comparison. It wins 4 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Solaria PowerXT 430R remains a good product, but the Hyundai HiE-S485VG delivers better overall value for the majority of installations.

View Solaria PowerXT 430R specs → View Hyundai HiE-S485VG specs →

Frequently Asked Questions

Which is better, Solaria PowerXT 430R or Hyundai HiE-S485VG?

The Hyundai HiE-S485VG wins this comparison by a clear margin. It leads in efficiency (22% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Hyundai HiE-S485VG is the stronger choice.

Which panel is more efficient, Solaria PowerXT 430R or Hyundai HiE-S485VG?

The Hyundai HiE-S485VG at 22% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.7 percentage points translates to approximately 55W per panel under standard test conditions.

Which has a better warranty, Solaria PowerXT 430R or Hyundai HiE-S485VG?

The Solaria PowerXT 430R comes with a 25-year product warranty and 25-year performance guarantee. The Hyundai HiE-S485VG offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.

Which panel performs better in hot weather?

The Solaria PowerXT 430R has a temperature coefficient of -0.34%/°C and the Hyundai HiE-S485VG is -0.3%/°C. Hyundai HiE-S485VG retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.

How many Solaria PowerXT 430R vs Hyundai HiE-S485VG panels do I need for an 8 kW system?

For an 8 kW system: you need 19 Solaria PowerXT 430R panels (430W each) or 17 Hyundai HiE-S485VG panels (485W each). The Hyundai HiE-S485VG requires fewer panels, saving on racking hardware and installation labor.

Related Resources

View full Solaria PowerXT 430R specifications → View full Hyundai HiE-S485VG specifications → All Solaria products → All Hyundai products →

Last updated: February 2026