78/ 100
Premium Performance
AIKO G4 Infinite Ultra 690W
Aiko Solar
Superior — Superior
Back-Contact Cell25.6% EfficiencyClass-Leading Temp Coeff15+ Yrs Field-Proven
How it scores, by category
Architecture & Design86
Efficiency & Yield82
Durability (verified)63
Performance & Degradation79
Guarantee & Backbone74
Sustainability100
Efficiency
25.6%
Cell
Back-contact
Temp coeff
-0.26
Warranty
25 yr
The verdict
In our Premium Performance class, Aiko Solar AIKO G4 Infinite Ultra 690W leads on sustainability.
Bankability: BNEF Tier 1 · sideline only, not scored. Source: https://www.pv-magazine.com/2026/06/10/aiko-showcases-690-w- · scoring methodology by Solar Analytica.