Mobile Efficiency Mobile Efficiency is set by the cell framework and foundation silicon material utilized which is generally either P-form or N-variety. Mobile efficiency is calculated by what is named the fill issue (FF), which can be the most conversion efficiency of a PV cell within the optimum running voltage https://totalsolar.com.au/how-rooftop-solar-and-land-conservation-can-work-together-to-benefit-the-environment/