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 the module. At that stage, the systematic integration between cell and module technologies had not yet been fully optimized but, through continued engineering efforts, the company has now introduced a series of refinements on both the cell and module side, resulting in measurable power gains.
AIKO developed a proprietary cell process specifically for its silver free ABC cells, the new process significantly reducing damage to the passivation layer during cell manufacturing. This improvement also minimizes passivation layer damage at the module assembly stage, enabling the module to achieves a 3.5W power increase from this measure alone.
In collaboration with its glass supplier, the company upgraded the anti-reflective coating fluid on the front glass, its transmittance increasing 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.
AIKO also refined the grid pattern of its 0BB (zero busbar) cells using finite element analysis software, the simulation enabling 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.
These three improvements demonstrate the company’s commitment to continuous engineering optimization, even after a product has entered mass production.
