Solar Panel Comparison

REC Group Alpha Pure-R 430W vs Trina Solar Vertex S+ 440W Full Black Dual Glass

The Vertex S+ 440W Full Black Dual Glass delivers 440W, 10W more than the Alpha Pure-R 430W at 430W.

Vertex S+ 440W Full Black Dual Glass has a higher efficiency of 22.5% versus 22.3% for the Alpha Pure-R 430W.

They use different cell technologies: Alpha Pure-R 430W uses HJT (Heterojunction), while Vertex S+ 440W Full Black Dual Glass uses N-type i-TOPCon.

Here's how they compare across all key specifications.

Vertex S+ 440W Full Black Dual Glass· Higher efficiencyVertex S+ 440W Full Black Dual Glass· Higher outputVertex S+ 440W Full Black Dual Glass· Better temp. performanceVertex S+ 440W Full Black Dual Glass· Lighter

Spec

REC Group

Alpha Pure-R 430W

430W

22.3% efficiency

Trina Solar

Vertex S+ 440W Full Black Dual Glass

440W

22.5% efficiency

Full Specification Comparison

SpecAlpha Pure-R 430WVertex S+ 440W Full Black Dual Glass
Performance
Power Output430 W440 W
Efficiency22.3%22.5%
Cell TypeHJT (Heterojunction)N-type i-TOPCon
Temp. Coeff.-0.24 %/°C-0.29 %/°C
Number of Cells80144
BifacialNoYes
Electrical
Voc59.4 V52.6 V
Vmp50 V44.3 V
Isc8.91 A10.71 A
Imp8.4 A10.05 A
Max System Voltage1000 V1500 V
Operating Temp-40 to +85 °C-40 to +85 °C
Physical
Dimensions1730x1118x30 mm1762x1134x30 mm
Weight21.5 kg21 kg
Frame ColourBlackBlack
Connector TypeMC4MC4-EVO2
Junction Box IP—IP68
Warranty & Certification
Product Warranty20 years25 years
Power Warranty25 years (92% min, 0.25%/yr)30 years linear (0.4%/yr)
MCS CertifiedYesNo
CertificationsIEC 61215, IEC 61730, RoHSIEC 61215, IEC 61730
Pricing (UK)
Retail Price£142.00—
Price per Watt£0.330/W—

Frequently Asked Questions

Which is more efficient, the Alpha Pure-R 430W or the Vertex S+ 440W Full Black Dual Glass?

The Vertex S+ 440W Full Black Dual Glass is more efficient at 22.5%, 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 Vertex S+ 440W Full Black Dual Glass?

The Vertex S+ 440W Full Black Dual Glass has a higher rated output at 440W. 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 Alpha Pure-R 430W or the Vertex S+ 440W Full Black Dual Glass?

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 →

Trina Solar

Vertex S+ 440W Full Black Dual Glass

440W · 22.5% efficiency · N-type i-TOPCon

View full specs →

More Comparisons

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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.

Solar EstimatorEstimate Installation Cost