JA Solar DeepBlue 3.0 400W vs Panasonic EverVolt 410
The Panasonic EverVolt 410 wins this comparison by a decisive margin. It leads in efficiency (21.5% vs 20.9%) and matches or exceeds on warranty (25 vs 12 years). For most residential installations, the Panasonic EverVolt 410 is the stronger choice.
Key Differences
- • JA Solar DeepBlue 3.0 400W is rated at 400W while Panasonic EverVolt 410 is rated at 410W, a 10W difference.
- • Panasonic EverVolt 410 achieves 21.5% efficiency vs 20.9% for the other, a 0.6 percentage point gap.
- • Panasonic EverVolt 410 comes with a 25-year product warranty vs 12 years for the other.
- • Panasonic EverVolt 410 has a superior temperature coefficient of -0.26%/°C vs -0.35%/°C, retaining more power in hot climates.
- • JA Solar DeepBlue 3.0 400W uses PERC Mono cells while Panasonic EverVolt 410 uses HJT (Heterojunction) cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Panasonic EverVolt 410 achieves 21.5% module efficiency compared to JA Solar DeepBlue 3.0 400W's 20.9%, meaning Panasonic EverVolt 410 converts 0.6 percentage points more sunlight into electricity per square meter. In practical terms, the JA Solar DeepBlue 3.0 400W produces 204.8 watts per square meter of panel area while the Panasonic EverVolt 410 produces 210.0 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 Panasonic EverVolt 410 delivers 410W per panel versus 400W for the JA Solar DeepBlue 3.0 400W, a 10W difference per module. To build an 8 kW residential system, you would need 20 JA Solar DeepBlue 3.0 400W panels or 20 Panasonic EverVolt 410 panels. Despite the per-panel wattage difference, both require the same number of panels for this system size due to rounding. 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 410 has a temperature coefficient of -0.26%/°C versus -0.35%/°C for the JA Solar DeepBlue 3.0 400W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Panasonic EverVolt 410 retains 94.8% of its rated power while the other retains 93.0%. This difference is particularly significant in hot climates such as the American Southwest, the Middle East, and Southeast Asia, where panels routinely operate 30-40°C above STC for several hours each day. Over the system lifetime, the cumulative energy advantage from a better temperature coefficient can amount to 2-4% of total production.
Warranty Coverage
The JA Solar DeepBlue 3.0 400W is backed by a 12-year product warranty and 25-year performance guarantee, while the Panasonic EverVolt 410 offers 25-year product and 25-year performance coverage. The Panasonic EverVolt 410 provides 13 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (2% first year then 0.5%/year for JA Solar DeepBlue 3.0 400W; 0.5% first year then 0.35%/year for Panasonic EverVolt 410), after 25 years the JA Solar DeepBlue 3.0 400W should retain approximately 86.0% of original output versus 91.1% for the Panasonic EverVolt 410. This 5.1 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The JA Solar DeepBlue 3.0 400W measures 1722×1134×30mm and weighs 20.5 kg, while the Panasonic EverVolt 410 measures 1722×1134×30mm at 21.5 kg. 1.95 m² of panel area for the JA Solar DeepBlue 3.0 400W versus 1.95 m² for the Panasonic EverVolt 410. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. Similar footprints mean both panels fit comparably on standard residential rooftop configurations.
Specification Comparison
| Specification | JA Solar DeepBlue 3.0 400W | Panasonic EverVolt 410 |
|---|---|---|
| Power | 400W | 410W |
| Efficiency | 20.9% | 21.5% |
| Power Density | 19.0 W/sq ft | 19.5 W/sq ft |
| Cell Type | PERC Mono | HJT (Heterojunction) |
| Bifacial | No | Yes |
| Weight | 20.5 kg | 21.5 kg |
| Temp Coefficient | -0.35%/°C | -0.26%/°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) | 2% | 0.5% |
| Annual Degradation | 0.5% | 0.35% |
| Country | China | Japan |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 achieves 21.5% efficiency versus 20.9% — a 0.6 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.3 kW more total system capacity, or 2 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 has a better temperature coefficient of -0.26%/°C versus -0.35%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 93.0%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Panasonic EverVolt 410Panasonic EverVolt 410 leads with a 25-year product warranty versus 12 years. Panasonic EverVolt 410 degrades more slowly at 0.35% per year versus 0.5%. After 25 years, expect 86.0% vs 91.1% of original output for JA Solar DeepBlue 3.0 400W and Panasonic EverVolt 410 respectively.
4. Power Output
Winner: Panasonic EverVolt 410The Panasonic EverVolt 410 delivers 410W versus 400W per panel — 10W more. For an 8 kW system, you need 20 panels with the higher-wattage option versus 20 panels, saving 0 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Panasonic EverVolt 410The JA Solar DeepBlue 3.0 400W uses PERC Mono: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. The Panasonic EverVolt 410 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. HJT (Heterojunction) represents a newer generation technology with a longer performance runway as manufacturing matures.
JA Solar DeepBlue 3.0 400W
The DeepBlue 3.0 is an affordable 400W PERC panel ideal for budget-conscious residential solar installations.
Pros
- + Very affordable
- + Lightweight design
- + Easy installation
- + Proven technology
Cons
- - Lower efficiency
- - Higher degradation rate
- - Shorter warranty
Panasonic EverVolt 410
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt 410 offered Panasonic's HJT technology at a slightly more accessible price point while maintaining premium quality.
Pros
- + Panasonic brand quality
- + HJT cell technology
- + Good temperature performance
- + 25-year warranty
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
Choose JA Solar DeepBlue 3.0 400W If...
- ✓ Budget installations where cost per watt is the primary concern.
Choose Panasonic EverVolt 410 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
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ You want maximum output retention over the system's 25-30 year lifespan
Our Recommendation
The Panasonic EverVolt 410 is the decisive winner in this solar panel comparison, outperforming the JA Solar DeepBlue 3.0 400W in 5 of 5 dimensions. Unless you have a specific requirement that the JA Solar DeepBlue 3.0 400W uniquely addresses, the Panasonic EverVolt 410 is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, JA Solar DeepBlue 3.0 400W or Panasonic EverVolt 410?
The Panasonic EverVolt 410 wins this comparison by a decisive margin. It leads in efficiency (21.5% vs 20.9%) and matches or exceeds on warranty (25 vs 12 years). For most residential installations, the Panasonic EverVolt 410 is the stronger choice.
Which panel is more efficient, JA Solar DeepBlue 3.0 400W or Panasonic EverVolt 410?
The Panasonic EverVolt 410 at 21.5% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.6 percentage points translates to approximately 10W per panel under standard test conditions.
Which has a better warranty, JA Solar DeepBlue 3.0 400W or Panasonic EverVolt 410?
The JA Solar DeepBlue 3.0 400W comes with a 12-year product warranty and 25-year performance guarantee. The Panasonic EverVolt 410 offers 25-year product and 25-year performance warranties. Panasonic EverVolt 410 provides 13 additional years of product coverage.
Which panel performs better in hot weather?
The JA Solar DeepBlue 3.0 400W has a temperature coefficient of -0.35%/°C and the Panasonic EverVolt 410 is -0.26%/°C. Panasonic EverVolt 410 retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many JA Solar DeepBlue 3.0 400W vs Panasonic EverVolt 410 panels do I need for an 8 kW system?
For an 8 kW system: you need 20 JA Solar DeepBlue 3.0 400W panels (400W each) or 20 Panasonic EverVolt 410 panels (410W each). The Panasonic EverVolt 410 requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026