Mobile Efficiency Mobile Efficiency is set with the mobile framework and base silicon materials employed which is normally both P-kind or N-form. Mobile efficiency is calculated by what is known as the fill element (FF), which is the most conversion efficiency of the PV cell on the ideal operating voltage https://totalsolar.com.au/wp-content/uploads/2024/10/SeraphimSIVN-TOPcon_SRP-425.440-BTD-BG-AU.pdf