How AIKO Keeps Pushing the Boundary: Three Engineering Secrets Behind COMET 3N72
May 18th, 2026
AIKO has pushed the mass production power output of its COMET 3N72 module (AIKO-A-MDE72Mw) from 670W to 675W, achieving a module efficiency of over 25%. This 5W gain is achieved through three targeted engineering improvements, with no change to module dimensions.
The 670W version represented the first mass production output of COMET 3N72 module. At that stage, the systematic integration between cell and module technologies had not yet been fully optimized. Through continued engineering efforts, AIKO has now introduced a series of refinements on both the cell and module sides, resulting in measurable power gains.
Improved cell passivation delivers 3.5W gain
AIKO developed a proprietary cell process specifically for its silver free ABC cells. The new process significantly reduces damage to the passivation layer during cell manufacturing. Furthermore, this improvement also minimizes passivation layer damage at the module assembly stage. As a result, the module achieves a 3.5W power increase from this measure alone.
Higher front glass transmittance contributes 1.0W gain
In collaboration with its glass supplier, AIKO upgraded the anti-reflective coating fluid on the front glass. The transmittance of the front glass has been increased from 94.4% to 94.6%. Although the 0.2 percentage point improvement appears modest, it translates directly into a 1.0W gain at the module level.
Optimized metallization pattern adds 0.5W gain
AIKO refined the grid pattern of its 0BB (zero busbar) cells using finite element analysis software. The simulation enabled more accurate prediction of series resistance trends. By optimizing the cross-sectional area of fine grid lines at the cell edge, electrical loss is reduced, resulting in a further 0.5W power gain.
Continuous innovation beyond product launch
These three improvements demonstrate AIKO’s commitment to continuous engineering optimization even after a product has entered mass production. Rather than treating the launch specification as a finishing line, AIKO continues to push the boundaries of what it can deliver.
As the BC technology leader, AIKO does not follow industry trends; it creates them. From the P type era to the N type era, AIKO has consistently introduced original technologies that redefine what is possible. Every innovation serves one purpose: to deliver more energy per watt, higher quality, and greater stability throughout the entire lifecycle of the module, helping customers achieve higher lifetime returns.
Visit AIKO at Intersolar Europe 2026, Booth A1.470 & A1.570 to witness the unveiling of INFINITE ULTRA – AIKO ABC Gen 4.
