Solar Panel Comparison

REC Group Alpha Pure-R 430W vs Trina Solar Vertex S+ 450W Dual Glass Full Black

The Vertex S+ 450W Dual Glass Full Black delivers 450W, 20W more than the Alpha Pure-R 430W at 430W.

Vertex S+ 450W Dual Glass Full Black 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+ 450W Dual Glass Full Black uses N-type i-TOPCon Triple-Cut.

Here's how they compare across all key specifications.

Vertex S+ 450W Dual Glass Full Black· Higher efficiencyVertex S+ 450W Dual Glass Full Black· Higher outputVertex S+ 450W Dual Glass Full Black· Better temp. performanceVertex S+ 450W Dual Glass Full Black· Lighter

Spec

REC Group

Alpha Pure-R 430W

430W

22.3% efficiency

Trina Solar

Vertex S+ 450W Dual Glass Full Black

450W

22.5% efficiency

Full Specification Comparison

SpecAlpha Pure-R 430WVertex S+ 450W Dual Glass Full Black
Performance
Power Output430 W450 W
Efficiency22.3%22.5%
Cell TypeHJT (Heterojunction)N-type i-TOPCon Triple-Cut
Temp. Coeff.-0.24 %/°C-0.29 %/°C
Number of Cells80144
BifacialNoYes
Electrical
Voc59.4 V52.9 V
Vmp50 V44.6 V
Isc8.91 A10.74 A
Imp8.4 A10.09 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 TypeMC4—
Warranty & Certification
Product Warranty20 years25 years
Power Warranty25 years (92% min, 0.25%/yr)30 years (87.4% yr30, 0.4%/yr)
MCS CertifiedYesYes
CertificationsIEC 61215, IEC 61730, RoHSIEC 61215, IEC 61730, IEC 62804, IEC TS 63209
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+ 450W Dual Glass Full Black?

The Vertex S+ 450W Dual Glass Full Black 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+ 450W Dual Glass Full Black?

The Vertex S+ 450W Dual Glass Full Black has a higher rated output at 450W. 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+ 450W Dual Glass Full Black?

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+ 450W Dual Glass Full Black

450W · 22.5% efficiency · N-type i-TOPCon Triple-Cut

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