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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Global benchmark

Emerging Technology

Copper HJT

SunDrive

52/ 100

Average

Limited evidence coverage · 15%

Evidence checked 2026-07-14

Heterojunction (HJT)24.0% EfficiencyClass-Leading Temp CoeffGlass-Glass
Full scorecard
Emerging Technology

Centaur 2LT

Oxford PV

56/ 100

Good

Moderate evidence coverage · 44%

Evidence checked 2026-07-16

25.0% EfficiencyClass-Leading Temp CoeffGlass-Glass
Full scorecard
Side by side

Score profile

MeasureCopper HJTCentaur 2LT
Architecture & Design71 / 10078 / 100
Efficiency & Yield68 / 10075 / 100
Durability (verified)43 / 10044 / 100
Performance & Degradation40 / 10040 / 100
Guarantee & Backbone39 / 10043 / 100
Sustainability46 / 10055 / 100

Architecture & Design

Copper HJT
71 / 100
Centaur 2LT
78 / 100

Efficiency & Yield

Copper HJT
68 / 100
Centaur 2LT
75 / 100

Durability (verified)

Copper HJT
43 / 100
Centaur 2LT
44 / 100

Performance & Degradation

Copper HJT
40 / 100
Centaur 2LT
40 / 100

Guarantee & Backbone

Copper HJT
39 / 100
Centaur 2LT
43 / 100

Sustainability

Copper HJT
46 / 100
Centaur 2LT
55 / 100
Side by side

Key specifications

MeasureCopper HJTCentaur 2LT
PowerNot recorded540 W
Efficiency24.0 %25.0 %
CellHeterojunctionPerovskite-silic
Temp coeff-0.24 %/°C-0.21 %/°C
Published rated power rangeNot stated510–540 W
Scored benchmarkNot stated540 W

Power

Copper HJT
Not recorded
Centaur 2LT
540 W

Efficiency

Copper HJT
24.0 %
Centaur 2LT
25.0 %

Cell

Copper HJT
Heterojunction
Centaur 2LT
Perovskite-silic

Temp coeff

Copper HJT
-0.24 %/°C
Centaur 2LT
-0.21 %/°C

Published rated power range

Copper HJT
Not stated
Centaur 2LT
510–540 W

Scored benchmark

Copper HJT
Not stated
Centaur 2LT
540 W
Decision snapshot

Where the comparison separates

OverallCentaur 2LT leads the global score by 4 points.
Strongest dimensionsCopper HJT: Architecture & Design · Centaur 2LT: Architecture & Design
Largest differenceCentaur 2LT has the largest pillar edge in Sustainability (9 points).
Evidence coverageCopper HJT: limited evidence coverage (15%) · Centaur 2LT: moderate evidence coverage (44%)

A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.

Both products are scored in the Emerging Technology class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.