Solar Panel Comparison
REC Group Alpha Pure-R 430W vs Viridian Solar Clearline Fusion 445W All Black BIPV
The Clearline Fusion 445W All Black BIPV delivers 445W, 15W more than the Alpha Pure-R 430W at 430W.
Clearline Fusion 445W All Black BIPV has a higher efficiency of 22.8% versus 22.3% for the Alpha Pure-R 430W.
They use different cell technologies: Alpha Pure-R 430W uses HJT (Heterojunction), while Clearline Fusion 445W All Black BIPV uses N-type TOPCon Half-Cell.
On price, the Alpha Pure-R 430W is cheaper by £83.88.
Here's how they compare across all key specifications.
Spec
REC Group
Alpha Pure-R 430W
430W
22.3% efficiency
Viridian Solar
Clearline Fusion 445W All Black BIPV
445W
22.8% efficiency
Full Specification Comparison
| Spec | Alpha Pure-R 430W | Clearline Fusion 445W All Black BIPV |
|---|---|---|
| Performance | ||
| Power Output | 430 W | 445 W |
| Efficiency | 22.3% | 22.8% |
| Cell Type | HJT (Heterojunction) | N-type TOPCon Half-Cell |
| Temp. Coeff. | -0.24 %/°C | -0.3 %/°C |
| Number of Cells | 80 | 108 |
| Bifacial | No | No |
| Electrical | ||
| Voc | 59.4 V | 39.9 V |
| Vmp | 50 V | 33.02 V |
| Isc | 8.91 A | 14.18 A |
| Imp | 8.4 A | 13.48 A |
| Max System Voltage | 1000 V | 1000 V |
| Operating Temp | -40 to +85 °C | -40 to +85 °C |
| Physical | ||
| Dimensions | 1730x1118x30 mm | 1722x1134x70 mm |
| Weight | 21.5 kg | — |
| Frame Colour | Black | Black |
| Connector Type | MC4 | MC4 |
| Warranty & Certification | ||
| Product Warranty | 20 years | 15 |
| Power Warranty | 25 years (92% min, 0.25%/yr) | 25 years linear |
| MCS Certified | Yes | Yes |
| Certifications | IEC 61215, IEC 61730, RoHS | IEC 61215, IEC 61730, MCS |
| Pricing (UK) | ||
| Retail Price | £142.00 | £225.88 |
| Price per Watt | £0.330/W | £0.508/W |
Frequently Asked Questions
Which is more efficient, the Alpha Pure-R 430W or the Clearline Fusion 445W All Black BIPV?
The Clearline Fusion 445W All Black BIPV is more efficient at 22.8%, 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 Alpha Pure-R 430W or the Clearline Fusion 445W All Black BIPV?
The Clearline Fusion 445W All Black BIPV has a higher rated output at 445W. This means fewer panels would be needed to reach the same system size compared to the Alpha Pure-R 430W.
Is the Alpha Pure-R 430W or Clearline Fusion 445W All Black BIPV better value for money?
The Alpha Pure-R 430W is priced lower at £142.00 per panel, saving £83.88 per panel. However, value depends on the full system cost, efficiency, and warranty — use our solar cost calculator to compare total installation costs.
Which solar panel should I choose for my home — the Alpha Pure-R 430W or the Clearline Fusion 445W All Black BIPV?
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.
REC Group
Alpha Pure-R 430W
430W · 22.3% efficiency · HJT (Heterojunction)
View full specs →Viridian Solar
Clearline Fusion 445W All Black BIPV
445W · 22.8% efficiency · N-type TOPCon Half-Cell
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.