Renogy 450W Bifacial Mono Solar Panel vs Hyundai HiE-S485VG
The Hyundai HiE-S485VG wins this comparison by a decisive margin. It delivers more power (485W vs 450W). For most residential installations, the Hyundai HiE-S485VG is the stronger choice.
Key Differences
- • Renogy 450W Bifacial Mono Solar Panel is rated at 450W while Hyundai HiE-S485VG is rated at 485W, a 35W difference.
- • Renogy 450W Bifacial Mono Solar Panel achieves 22.8% efficiency vs 22% for the other, a 0.8 percentage point gap.
- • Hyundai HiE-S485VG comes with a 25-year product warranty vs 12 years for the other.
- • Renogy 450W Bifacial Mono Solar Panel has a superior temperature coefficient of -0.29%/°C vs -0.3%/°C, retaining more power in hot climates.
- • Renogy 450W Bifacial Mono Solar Panel uses N-Type Monocrystalline cells while Hyundai HiE-S485VG uses TOPCon N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Renogy 450W Bifacial Mono Solar Panel achieves 22.8% module efficiency compared to Hyundai HiE-S485VG's 22%, meaning Renogy 450W Bifacial Mono Solar Panel converts 0.8 percentage points more sunlight into electricity per square meter. In practical terms, the Renogy 450W Bifacial Mono Solar Panel produces 233.1 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 450W for the Renogy 450W Bifacial Mono Solar Panel, a 35W difference per module. To build an 8 kW residential system, you would need 18 Renogy 450W Bifacial Mono Solar Panel panels or 17 Hyundai HiE-S485VG panels. Choosing the higher-wattage option saves 1 panel, 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 Renogy 450W Bifacial Mono Solar Panel has a temperature coefficient of -0.29%/°C versus -0.3%/°C for the Hyundai HiE-S485VG. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Renogy 450W Bifacial Mono Solar Panel retains 94.2% of its rated power while the other retains 94.0%. 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 Renogy 450W Bifacial Mono Solar Panel is backed by a 12-year product warranty and 25-year performance guarantee, while the Hyundai HiE-S485VG offers 25-year product and 25-year performance coverage. The Hyundai HiE-S485VG provides 13 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (1% first year then 0.4%/year for Renogy 450W Bifacial Mono Solar Panel; 1% first year then 0.4%/year for Hyundai HiE-S485VG), after 25 years the Renogy 450W Bifacial Mono Solar Panel should retain approximately 89.4% of original output versus 89.4% for the Hyundai HiE-S485VG. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Renogy 450W Bifacial Mono Solar Panel measures 1801×1072×30mm and weighs 24.2 kg, while the Hyundai HiE-S485VG measures 2094×1039×35mm at 24.5 kg. 1.93 m² of panel area for the Renogy 450W Bifacial Mono Solar Panel versus 2.18 m² for the Hyundai HiE-S485VG. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. The more compact Renogy 450W Bifacial Mono Solar Panel may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Renogy 450W Bifacial Mono Solar Panel | Hyundai HiE-S485VG |
|---|---|---|
| Power | 450W | 485W |
| Efficiency | 22.8% | 22% |
| Power Density | 21.7 W/sq ft | 20.7 W/sq ft |
| Cell Type | N-Type Monocrystalline | TOPCon N-type |
| Bifacial | Yes | No |
| Weight | 24.2 kg | 24.5 kg |
| Temp Coefficient | -0.29%/°C | -0.3%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 12 years | 25 years |
| Performance Warranty | 25 years | 25 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | China | South Korea |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Renogy 450W Bifacial Mono Solar PanelThe Renogy 450W Bifacial Mono Solar Panel achieves 22.8% efficiency versus 22% — a 0.8 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.1 kW more total system capacity, or 5 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Renogy 450W Bifacial Mono Solar PanelThe Renogy 450W Bifacial Mono Solar Panel has a better temperature coefficient of -0.29%/°C versus -0.3%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.2% of rated power versus 94.0%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Hyundai HiE-S485VGHyundai HiE-S485VG leads with a 25-year product warranty versus 12 years. After 25 years, expect 89.4% vs 89.4% of original output for Renogy 450W Bifacial Mono Solar Panel and Hyundai HiE-S485VG respectively.
4. Power Output
Winner: Hyundai HiE-S485VGThe Hyundai HiE-S485VG delivers 485W versus 450W per panel — 35W more. For an 8 kW system, you need 17 panels with the higher-wattage option versus 18 panels, saving 1 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Hyundai HiE-S485VGThe Renogy 450W Bifacial Mono Solar Panel uses N-Type Monocrystalline: N-Type Monocrystalline. 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.
Renogy 450W Bifacial Mono Solar Panel
The Renogy 450W Bifacial Mono Solar Panel is Renogy's flagship residential/commercial panel, combining N-Type monocrystalline cells with bifacial technology for up to 25% additional energy gain from reflected light.
Pros
- + Bifacial design with up to 25% energy gain
- + 22.8% efficiency with N-Type cells
- + 12-year product warranty — Renogy's longest
- + Good temperature coefficient at -0.29%/°C
- + UL 1703 certified for residential and commercial
Cons
- - 24.2 kg heavier than most residential panels
- - Bifacial gain requires proper mounting height and ground albedo
- - Higher upfront cost than monofacial alternatives
- - Large 1.93 m² footprint
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
Choose Renogy 450W Bifacial Mono Solar Panel If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ Residential and commercial installations seeking maximum energy harvest with bifacial gain, especially ground-mount systems.
Choose Hyundai HiE-S485VG If...
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ 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
The Hyundai HiE-S485VG is the decisive winner in this solar panel comparison, outperforming the Renogy 450W Bifacial Mono Solar Panel in 3 of 5 dimensions. Unless you have a specific requirement that the Renogy 450W Bifacial Mono Solar Panel uniquely addresses, the Hyundai HiE-S485VG is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Renogy 450W Bifacial Mono Solar Panel or Hyundai HiE-S485VG?
The Hyundai HiE-S485VG wins this comparison by a decisive margin. It delivers more power (485W vs 450W). For most residential installations, the Hyundai HiE-S485VG is the stronger choice.
Which panel is more efficient, Renogy 450W Bifacial Mono Solar Panel or Hyundai HiE-S485VG?
The Renogy 450W Bifacial Mono Solar Panel at 22.8% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.8 percentage points translates to approximately 35W per panel under standard test conditions.
Which has a better warranty, Renogy 450W Bifacial Mono Solar Panel or Hyundai HiE-S485VG?
The Renogy 450W Bifacial Mono Solar Panel comes with a 12-year product warranty and 25-year performance guarantee. The Hyundai HiE-S485VG offers 25-year product and 25-year performance warranties. Hyundai HiE-S485VG provides 13 additional years of product coverage.
Which panel performs better in hot weather?
The Renogy 450W Bifacial Mono Solar Panel has a temperature coefficient of -0.29%/°C and the Hyundai HiE-S485VG is -0.3%/°C. Renogy 450W Bifacial Mono Solar Panel retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Renogy 450W Bifacial Mono Solar Panel vs Hyundai HiE-S485VG panels do I need for an 8 kW system?
For an 8 kW system: you need 18 Renogy 450W Bifacial Mono Solar Panel panels (450W each) or 17 Hyundai HiE-S485VG panels (485W each). The Hyundai HiE-S485VG requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026