REC Alpha Pure R 430W vs Panasonic EverVolt H 410W
The REC Alpha Pure R 430W wins this comparison by a narrow margin. It leads in efficiency (22.3% vs 21.6%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the REC Alpha Pure R 430W is the stronger choice.
Key Differences
- • REC Alpha Pure R 430W is rated at 430W while Panasonic EverVolt H 410W is rated at 410W, a 20W difference.
- • REC Alpha Pure R 430W achieves 22.3% efficiency vs 21.6% 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 430W achieves 22.3% module efficiency compared to Panasonic EverVolt H 410W's 21.6%, meaning REC Alpha Pure R 430W converts 0.7 percentage points more sunlight into electricity per square meter. In practical terms, the REC Alpha Pure R 430W produces 220.2 watts per square meter of panel area while the Panasonic EverVolt H 410W 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 430W delivers 430W per panel versus 410W for the Panasonic EverVolt H 410W, a 20W difference per module. To build an 8 kW residential system, you would need 19 REC Alpha Pure R 430W panels or 20 Panasonic EverVolt H 410W 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
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 430W is backed by a 25-year product warranty and 30-year performance guarantee, while the Panasonic EverVolt H 410W 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 430W; 0.5% first year then 0.35%/year for Panasonic EverVolt H 410W), after 25 years the REC Alpha Pure R 430W should retain approximately 91.1% of original output versus 91.1% for the Panasonic EverVolt H 410W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The REC Alpha Pure R 430W measures 1722×1134×30mm and weighs 22 kg, while the Panasonic EverVolt H 410W measures 1722×1134×30mm at 21.5 kg. 1.95 m² of panel area for the REC Alpha Pure R 430W versus 1.95 m² for the Panasonic EverVolt H 410W. 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 | REC Alpha Pure R 430W | Panasonic EverVolt H 410W |
|---|---|---|
| Power | 430W | 410W |
| Efficiency | 22.3% | 21.6% |
| Power Density | 20.5 W/sq ft | 19.5 W/sq ft |
| Cell Type | HJT (Heterojunction) | HJT (Heterojunction) |
| Bifacial | Yes | Yes |
| Weight | 22 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 | 30 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 430WThe REC Alpha Pure R 430W achieves 22.3% efficiency versus 21.6% — a 0.7 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.6 kW more total system capacity, or 3 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 430WThe REC Alpha Pure R 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: TieBoth panels use HJT (Heterojunction) cell technology. No technology advantage for either product.
REC Alpha Pure R 430W
The Alpha Pure R delivers 430W HJT performance in a compact residential format with REC's premium 25-year warranty and lead-free construction.
Pros
- + 25-year product warranty
- + Compact HJT panel
- + Best-in-class temp coefficient
- + Lead-free design
Cons
- - Higher cost per watt
- - Lower wattage than larger models
- - Limited production
Panasonic EverVolt H 410W
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt H delivered 410W HJT performance in a compact residential format backed by Panasonic's 25-year complete warranty.
Pros
- + 25-year product warranty
- + HJT technology
- + Excellent temperature performance
- + Compact design
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
Choose REC Alpha Pure R 430W 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
- ✓ Compact residential roofs in hot climates wanting premium HJT performance.
Choose Panasonic EverVolt H 410W If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ No longer available for new installations.
Our Recommendation
Both the REC Alpha Pure R 430W and Panasonic EverVolt H 410W are excellent solar panel options, and the margin between them is narrow. The REC Alpha Pure R 430W wins 2 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, REC Alpha Pure R 430W or Panasonic EverVolt H 410W?
The REC Alpha Pure R 430W wins this comparison by a narrow margin. It leads in efficiency (22.3% vs 21.6%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the REC Alpha Pure R 430W is the stronger choice.
Which panel is more efficient, REC Alpha Pure R 430W or Panasonic EverVolt H 410W?
The REC Alpha Pure R 430W at 22.3% 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 20W per panel under standard test conditions.
Which has a better warranty, REC Alpha Pure R 430W or Panasonic EverVolt H 410W?
The REC Alpha Pure R 430W comes with a 25-year product warranty and 30-year performance guarantee. The Panasonic EverVolt H 410W 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 430W has a temperature coefficient of -0.26%/°C and the Panasonic EverVolt H 410W is -0.26%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many REC Alpha Pure R 430W vs Panasonic EverVolt H 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 REC Alpha Pure R 430W panels (430W each) or 20 Panasonic EverVolt H 410W panels (410W each). The REC Alpha Pure R 430W requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026