Panasonic EverVolt HK 430W vs Risen Energy Hyper-ion HJT 700W
The Panasonic EverVolt HK 430W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Key Differences
- • Panasonic EverVolt HK 430W is rated at 430W while Risen Energy Hyper-ion HJT 700W is rated at 700W, a 270W difference.
- • Risen Energy Hyper-ion HJT 700W achieves 23% efficiency vs 22.2% for the other, a 0.8 percentage point gap.
- • Panasonic EverVolt HK 430W comes with a 25-year product warranty vs 15 years for the other.
- • Risen Energy Hyper-ion HJT 700W has a superior temperature coefficient of -0.25%/°C vs -0.26%/°C, retaining more power in hot climates.
Specifications Breakdown
Module Efficiency
The Risen Energy Hyper-ion HJT 700W achieves 23% module efficiency compared to Panasonic EverVolt HK 430W's 22.2%, meaning Risen Energy Hyper-ion HJT 700W converts 0.8 percentage points more sunlight into electricity per square meter. In practical terms, the Panasonic EverVolt HK 430W produces 220.2 watts per square meter of panel area while the Risen Energy Hyper-ion HJT 700W produces 225.3 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 Risen Energy Hyper-ion HJT 700W delivers 700W per panel versus 430W for the Panasonic EverVolt HK 430W, a 270W difference per module. To build an 8 kW residential system, you would need 19 Panasonic EverVolt HK 430W panels or 12 Risen Energy Hyper-ion HJT 700W panels. Choosing the higher-wattage option saves 7 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 Risen Energy Hyper-ion HJT 700W has a temperature coefficient of -0.25%/°C versus -0.26%/°C for the Panasonic EverVolt HK 430W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Risen Energy Hyper-ion HJT 700W retains 95.0% of its rated power while the other retains 94.8%. 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 Panasonic EverVolt HK 430W is backed by a 25-year product warranty and 25-year performance guarantee, while the Risen Energy Hyper-ion HJT 700W offers 15-year product and 30-year performance coverage. The Panasonic EverVolt HK 430W provides 10 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (0.5% first year then 0.35%/year for Panasonic EverVolt HK 430W; 0.5% first year then 0.35%/year for Risen Energy Hyper-ion HJT 700W), after 25 years the Panasonic EverVolt HK 430W should retain approximately 91.1% of original output versus 91.1% for the Risen Energy Hyper-ion HJT 700W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Panasonic EverVolt HK 430W measures 1722×1134×30mm and weighs 22.5 kg, while the Risen Energy Hyper-ion HJT 700W measures 2384×1303×35mm at 35.5 kg. 1.95 m² of panel area for the Panasonic EverVolt HK 430W versus 3.11 m² for the Risen Energy Hyper-ion HJT 700W. The Panasonic EverVolt HK 430W is 13.0 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 260 kg. The more compact Panasonic EverVolt HK 430W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Panasonic EverVolt HK 430W | Risen Energy Hyper-ion HJT 700W |
|---|---|---|
| Power | 430W | 700W |
| Efficiency | 22.2% | 23% |
| Power Density | 20.5 W/sq ft | 20.9 W/sq ft |
| Cell Type | HJT (Heterojunction) | HJT (Heterojunction) |
| Bifacial | Yes | Yes |
| Weight | 22.5 kg | 35.5 kg |
| Temp Coefficient | -0.26%/°C | -0.25%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 15 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 0.5% | 0.5% |
| Annual Degradation | 0.35% | 0.35% |
| Country | Japan | China |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W achieves 23% efficiency versus 22.2% — a 0.8 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 8.1 kW more total system capacity, or 37 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W has a better temperature coefficient of -0.25%/°C versus -0.26%/°C. On a 45°C summer day (20°C above STC), the winner retains 95.0% of rated power versus 94.8%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Panasonic EverVolt HK 430WPanasonic EverVolt HK 430W leads with a 25-year product warranty versus 15 years. After 25 years, expect 91.1% vs 91.1% of original output for Panasonic EverVolt HK 430W and Risen Energy Hyper-ion HJT 700W respectively.
4. Power Output
Winner: Risen Energy Hyper-ion HJT 700WThe Risen Energy Hyper-ion HJT 700W delivers 700W versus 430W per panel — 270W more. For an 8 kW system, you need 12 panels with the higher-wattage option versus 19 panels, saving 7 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieBoth panels use HJT (Heterojunction) cell technology. No technology advantage for either product.
Panasonic EverVolt HK 430W
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt HK delivered 430W using HJT technology with Panasonic's renowned build quality and 25-year warranty.
Pros
- + Japanese engineering quality
- + Excellent HJT temperature coefficient
- + 25-year warranty
- + Strong brand trust
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
Risen Energy Hyper-ion HJT 700W
The Hyper-ion HJT 700W is one of the highest-wattage residential/commercial panels available, using advanced HJT cells for exceptional efficiency.
Pros
- + Ultra-high 700W output
- + 23.0% HJT efficiency
- + Best temperature coefficient
- + Future-proof technology
Cons
- - Extremely large and heavy
- - Premium pricing
- - Limited availability
Choose Panasonic EverVolt HK 430W If...
- ✓ 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
- ✓ No longer available for new installations.
Choose Risen Energy Hyper-ion HJT 700W 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
- ✓ Ground-mount and commercial systems seeking maximum wattage per panel.
Our Recommendation
Both the Panasonic EverVolt HK 430W and Risen Energy Hyper-ion HJT 700W are excellent solar panel options, and the margin between them is narrow. The Panasonic EverVolt HK 430W wins 1 of 5 comparison dimensions by a slim margin. Your decision may come down to local pricing, installer availability, and which specific performance metrics matter most for your project. Either product is a solid investment.
Frequently Asked Questions
Which is better, Panasonic EverVolt HK 430W or Risen Energy Hyper-ion HJT 700W?
The Panasonic EverVolt HK 430W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Which panel is more efficient, Panasonic EverVolt HK 430W or Risen Energy Hyper-ion HJT 700W?
The Risen Energy Hyper-ion HJT 700W at 23% 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 270W per panel under standard test conditions.
Which has a better warranty, Panasonic EverVolt HK 430W or Risen Energy Hyper-ion HJT 700W?
The Panasonic EverVolt HK 430W comes with a 25-year product warranty and 25-year performance guarantee. The Risen Energy Hyper-ion HJT 700W offers 15-year product and 30-year performance warranties. Panasonic EverVolt HK 430W provides 10 additional years of product coverage.
Which panel performs better in hot weather?
The Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C and the Risen Energy Hyper-ion HJT 700W is -0.25%/°C. Risen Energy Hyper-ion HJT 700W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Panasonic EverVolt HK 430W vs Risen Energy Hyper-ion HJT 700W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Panasonic EverVolt HK 430W panels (430W each) or 12 Risen Energy Hyper-ion HJT 700W panels (700W each). The Risen Energy Hyper-ion HJT 700W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026