Maxeon Maxeon 3 410W vs Panasonic EverVolt HK 430W
The Maxeon Maxeon 3 410W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Maxeon Maxeon 3 410W is the stronger choice.
Key Differences
- • Maxeon Maxeon 3 410W is rated at 410W while Panasonic EverVolt HK 430W is rated at 430W, a 20W difference.
- • Both achieve identical 22.2% module efficiency.
- • Both carry matching 25-year product warranties.
- • Panasonic EverVolt HK 430W has a superior temperature coefficient of -0.26%/°C vs -0.27%/°C, retaining more power in hot climates.
- • Maxeon Maxeon 3 410W uses IBC (Interdigitated Back Contact) cells while Panasonic EverVolt HK 430W uses HJT (Heterojunction) cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
Both the Maxeon Maxeon 3 410W and Panasonic EverVolt HK 430W share identical 22.2% module efficiency, producing comparable power per unit area. The Maxeon Maxeon 3 410W generates 222.7 W/m² while the Panasonic EverVolt HK 430W generates 220.2 W/m² based on their respective panel dimensions. With matched efficiency, neither panel holds a density advantage for space-constrained rooftop installations, so other factors like warranty coverage and temperature performance become the deciding metrics.
Power Output
The Panasonic EverVolt HK 430W delivers 430W per panel versus 410W for the Maxeon Maxeon 3 410W, a 20W difference per module. To build an 8 kW residential system, you would need 20 Maxeon Maxeon 3 410W panels or 19 Panasonic EverVolt HK 430W 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 Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C versus -0.27%/°C for the Maxeon Maxeon 3 410W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Panasonic EverVolt HK 430W retains 94.8% of its rated power while the other retains 94.6%. 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 Maxeon Maxeon 3 410W is backed by a 25-year product warranty and 25-year performance guarantee, while the Panasonic EverVolt HK 430W offers 25-year product and 25-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (0.25% first year then 0.25%/year for Maxeon Maxeon 3 410W; 0.5% first year then 0.35%/year for Panasonic EverVolt HK 430W), after 25 years the Maxeon Maxeon 3 410W should retain approximately 93.8% of original output versus 91.1% for the Panasonic EverVolt HK 430W. This 2.7 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Maxeon Maxeon 3 410W measures 1812×1016×30mm and weighs 19 kg, while the Panasonic EverVolt HK 430W measures 1722×1134×30mm at 22.5 kg. 1.84 m² of panel area for the Maxeon Maxeon 3 410W versus 1.95 m² for the Panasonic EverVolt HK 430W. The Maxeon Maxeon 3 410W is 3.5 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 70 kg. The more compact Maxeon Maxeon 3 410W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Maxeon Maxeon 3 410W | Panasonic EverVolt HK 430W |
|---|---|---|
| Power | 410W | 430W |
| Efficiency | 22.2% | 22.2% |
| Power Density | 20.7 W/sq ft | 20.5 W/sq ft |
| Cell Type | IBC (Interdigitated Back Contact) | HJT (Heterojunction) |
| Bifacial | Yes | Yes |
| Weight | 19 kg | 22.5 kg |
| Temp Coefficient | -0.27%/°C | -0.26%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 3600 Pa | 2400 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 25 years | 25 years |
| Degradation (Year 1) | 0.25% | 0.5% |
| Annual Degradation | 0.25% | 0.35% |
| Country | Mexico | Japan |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: TieBoth panels achieve 22.2% module efficiency, producing identical power per square meter. Neither has an advantage in space-constrained installations.
2. Hot Climate Performance
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W has a better temperature coefficient of -0.26%/°C versus -0.27%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 94.6%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Maxeon Maxeon 3 410WMaxeon Maxeon 3 410W degrades more slowly at 0.25% per year versus 0.35%. After 25 years, expect 93.8% vs 91.1% of original output for Maxeon Maxeon 3 410W and Panasonic EverVolt HK 430W respectively.
4. Power Output
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W delivers 430W versus 410W per panel — 20W more. For an 8 kW system, you need 19 panels with the higher-wattage option versus 20 panels, saving 1 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieThe Maxeon Maxeon 3 410W uses IBC (Interdigitated Back Contact): IBC (Interdigitated Back Contact) moves all electrical contacts to the rear of the cell, maximizing front-side light capture for the highest possible efficiency. The Panasonic EverVolt HK 430W uses HJT (Heterojunction): HJT (Heterojunction) combines crystalline silicon with amorphous silicon layers, delivering the best temperature coefficient and bifacial gains, but at higher manufacturing cost. Both are equivalent-generation technologies.
Maxeon Maxeon 3 410W
The Maxeon 3 (formerly SunPower) delivers 410W with IBC technology and a proven 25-year warranty track record. Note: this is a discontinued/legacy model being phased out in favor of newer Maxeon series.
Pros
- + Proven IBC technology
- + 25-year comprehensive warranty
- + Excellent real-world performance
- + Lightweight design
Cons
- - Discontinued/legacy model
- - Higher cost than conventional panels
- - Limited future support and availability
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
Choose Maxeon Maxeon 3 410W If...
- ✓ You want maximum output retention over the system's 25-30 year lifespan
- ✓ Those wanting a proven premium panel with established track record (while supplies last).
Choose Panasonic EverVolt HK 430W If...
- ✓ 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
- ✓ No longer available for new installations.
Our Recommendation
Both the Maxeon Maxeon 3 410W and Panasonic EverVolt HK 430W are excellent solar panel options, and the margin between them is narrow. The Maxeon Maxeon 3 410W 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, Maxeon Maxeon 3 410W or Panasonic EverVolt HK 430W?
The Maxeon Maxeon 3 410W wins this comparison by a narrow margin. It offers better long-term durability with 25-year warranty. For most residential installations, the Maxeon Maxeon 3 410W is the stronger choice.
Which panel is more efficient, Maxeon Maxeon 3 410W or Panasonic EverVolt HK 430W?
The both panels share 22.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.0 percentage points translates to approximately 20W per panel under standard test conditions.
Which has a better warranty, Maxeon Maxeon 3 410W or Panasonic EverVolt HK 430W?
The Maxeon Maxeon 3 410W comes with a 25-year product warranty and 25-year performance guarantee. The Panasonic EverVolt HK 430W offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Maxeon Maxeon 3 410W has a temperature coefficient of -0.27%/°C and the Panasonic EverVolt HK 430W is -0.26%/°C. Panasonic EverVolt HK 430W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Maxeon Maxeon 3 410W vs Panasonic EverVolt HK 430W panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Maxeon Maxeon 3 410W panels (410W each) or 19 Panasonic EverVolt HK 430W panels (430W each). The Panasonic EverVolt HK 430W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026