REC Alpha Pure-R 460W vs Panasonic EverVolt 410
The REC Alpha Pure-R 460W wins this comparison by a clear margin. It leads in efficiency (22.2% vs 21.5%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the REC Alpha Pure-R 460W is the stronger choice.
Key Differences
- • REC Alpha Pure-R 460W is rated at 460W while Panasonic EverVolt 410 is rated at 410W, a 50W difference.
- • REC Alpha Pure-R 460W achieves 22.2% efficiency vs 21.5% for the other, a 0.7 percentage point gap.
- • Both carry matching 25-year product warranties.
Specifications Breakdown
Module Efficiency
The REC Alpha Pure-R 460W achieves 22.2% module efficiency compared to Panasonic EverVolt 410's 21.5%, meaning REC Alpha Pure-R 460W converts 0.7 percentage points more sunlight into electricity per square meter. In practical terms, the REC Alpha Pure-R 460W produces 220.9 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 REC Alpha Pure-R 460W delivers 460W per panel versus 410W for the Panasonic EverVolt 410, a 50W difference per module. To build an 8 kW residential system, you would need 18 REC Alpha Pure-R 460W panels or 20 Panasonic EverVolt 410 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
Both panels share an identical temperature coefficient of -0.26%/°C, meaning they lose power at the same rate as cell temperature rises above the 25°C standard test baseline. At 65°C cell temperature, both retain 94.8% of rated power. Neither panel has a thermal performance advantage, which makes this specification a non-factor in the comparison.
Warranty Coverage
The REC Alpha Pure-R 460W is backed by a 25-year product warranty and 25-year performance guarantee, while the Panasonic EverVolt 410 offers 25-year product and 25-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (0.5% first year then 0.35%/year for REC Alpha Pure-R 460W; 0.5% first year then 0.35%/year for Panasonic EverVolt 410), after 25 years the REC Alpha Pure-R 460W should retain approximately 91.1% of original output versus 91.1% for the Panasonic EverVolt 410. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The REC Alpha Pure-R 460W measures 1728×1205×30mm and weighs 23 kg, while the Panasonic EverVolt 410 measures 1722×1134×30mm at 21.5 kg. 2.08 m² of panel area for the REC Alpha Pure-R 460W 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. The more compact Panasonic EverVolt 410 may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | REC Alpha Pure-R 460W | Panasonic EverVolt 410 |
|---|---|---|
| Power | 460W | 410W |
| Efficiency | 22.2% | 21.5% |
| Power Density | 20.5 W/sq ft | 19.5 W/sq ft |
| Cell Type | HJT (Heterojunction) | HJT (Heterojunction) |
| Bifacial | Yes | Yes |
| Weight | 23 kg | 21.5 kg |
| Temp Coefficient | -0.26%/°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) | 0.5% | 0.5% |
| Annual Degradation | 0.35% | 0.35% |
| Country | Singapore | Japan |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: REC Alpha Pure-R 460WThe REC Alpha Pure-R 460W achieves 22.2% efficiency versus 21.5% — a 0.7 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.5 kW more total system capacity, or 7 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: TieBoth panels share a temperature coefficient of -0.26%/°C — identical heat tolerance.
3. Durability & Warranty
Winner: TieBoth panels offer identical 25-year product warranties and 0.35% annual degradation. Neither has a durability advantage.
4. Power Output
Winner: REC Alpha Pure-R 460WThe REC Alpha Pure-R 460W delivers 460W versus 410W per panel — 50W more. For an 8 kW system, you need 18 panels with the higher-wattage option versus 20 panels, saving 2 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.
REC Alpha Pure-R 460W
REC's Alpha Pure-R 460W delivers HJT performance in a larger format, combining high output with HJT's superior temperature and degradation performance. Note: model naming may vary by region.
Pros
- + High 460W HJT output
- + 25-year product warranty
- + Excellent heat tolerance
- + Low degradation
Cons
- - Large form factor
- - Premium pricing
- - Regional availability varies
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 REC Alpha Pure-R 460W 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 prefer newer cell technology with a longer performance improvement runway
- ✓ Commercial and large residential systems prioritizing longevity and heat tolerance.
Choose Panasonic EverVolt 410 If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ No longer available for new installations.
Our Recommendation
We recommend the REC Alpha Pure-R 460W for most buyers in this comparison. It wins 2 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Panasonic EverVolt 410 remains a good product, but the REC Alpha Pure-R 460W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, REC Alpha Pure-R 460W or Panasonic EverVolt 410?
The REC Alpha Pure-R 460W wins this comparison by a clear margin. It leads in efficiency (22.2% vs 21.5%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the REC Alpha Pure-R 460W is the stronger choice.
Which panel is more efficient, REC Alpha Pure-R 460W or Panasonic EverVolt 410?
The REC Alpha Pure-R 460W at 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 0.7 percentage points translates to approximately 50W per panel under standard test conditions.
Which has a better warranty, REC Alpha Pure-R 460W or Panasonic EverVolt 410?
The REC Alpha Pure-R 460W comes with a 25-year product warranty and 25-year performance guarantee. The Panasonic EverVolt 410 offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The REC Alpha Pure-R 460W has a temperature coefficient of -0.26%/°C and the Panasonic EverVolt 410 is -0.26%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many REC Alpha Pure-R 460W vs Panasonic EverVolt 410 panels do I need for an 8 kW system?
For an 8 kW system: you need 18 REC Alpha Pure-R 460W panels (460W each) or 20 Panasonic EverVolt 410 panels (410W each). The REC Alpha Pure-R 460W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026