Solar Panel Comparison
Maxeon / SunPower Maxeon 7 475W vs REC Group Alpha Pure-R 430W
The Maxeon 7 475W delivers 475W, 45W more than the Alpha Pure-R 430W at 430W.
Maxeon 7 475W has a higher efficiency of 24% versus 22.3% for the Alpha Pure-R 430W.
They use different cell technologies: Maxeon 7 475W uses IBC (Interdigitated Back Contact) N-type, while Alpha Pure-R 430W uses HJT (Heterojunction).
Here's how they compare across all key specifications.
Full Specification Comparison
| Spec | Maxeon 7 475W | Alpha Pure-R 430W |
|---|---|---|
| Performance | ||
| Power Output | 475 W | 430 W |
| Efficiency | 24% | 22.3% |
| Cell Type | IBC (Interdigitated Back Contact) N-type | HJT (Heterojunction) |
| Temp. Coeff. | -0.27 %/°C | -0.24 %/°C |
| Number of Cells | 120 | 80 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 44.47 V | 59.4 V |
| Vmp | 38.06 V | 50 V |
| Isc | 13.2 A | 8.91 A |
| Imp | 12.48 A | 8.4 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1913x1035x35 mm | 1730x1118x30 mm |
| Weight | 21.1 kg | 21.5 kg |
| Frame Colour | Black | Black |
| Connector Type | MC4 compatible | MC4 |
| Warranty & Certification | ||
| Product Warranty | 40 years | 20 years |
| Power Warranty | 40 years (92% yr25, 0.25%/yr) | 25 years (92% min, 0.25%/yr) |
| MCS Certified | No | Yes |
| Certifications | IEC 61215, IEC 61730 | IEC 61215, IEC 61730, RoHS |
| Pricing (UK) | ||
| Retail Price | — | £142.00 |
| Price per Watt | — | £0.330/W |
Frequently Asked Questions
Which is more efficient, the Maxeon 7 475W or the Alpha Pure-R 430W?
The Maxeon 7 475W is more efficient at 24%, compared to 22.3% for the Alpha Pure-R 430W. Higher efficiency means more power generated per square metre of roof space.
Which panel produces more power, the Maxeon 7 475W or the Alpha Pure-R 430W?
The Maxeon 7 475W has a higher rated output at 475W. This means fewer panels would be needed to reach the same system size compared to the Alpha Pure-R 430W.
Which solar panel should I choose for my home — the Maxeon 7 475W or the Alpha Pure-R 430W?
The right choice depends on your priorities. If maximising energy generation per panel is key, consider efficiency and wattage. If budget is your main concern, compare price per watt. Both panels have their merits — use our Solar Estimator to see how each would perform in your specific home setup.
Maxeon / SunPower
Maxeon 7 475W
475W · 24% efficiency · IBC (Interdigitated Back Contact) N-type
View full specs →REC Group
Alpha Pure-R 430W
430W · 22.3% efficiency · HJT (Heterojunction)
View full specs →More Comparisons
See how these panels perform in your home
Use our Solar Estimator to calculate system size, installation cost, and payback period — with either of these panels as a starting point.