(Fonrich>ATUVRheinlandPrecisely Right.Arc Fault Circuit Interrupter (AFCI)forPV System Solutions White Paper2025IntroductionGlobally,the energy crisis,the sense of urgency regarding climate change and the goal of carbon neutrality have driven a new round ofenergy revolution.Relying on the Chinese"3060 Goals"(Carbon Peak by 2030 and Carbon Neutrality by 2060),various countries haveformulated new energy strategies.Photovoltaic power generation,as a clean,efficient,easily deployable and technologically matureenergy form,has rapidly risen and become the main force in the development of new energy.According to the prediction of theInternational Energy Agency (IEA),by 2050,75%of global energy consumption will come from clean energy,and the proportion of PVpower generation will exceed 30%The rapid development of the PV industry undoubtedly accelerates the pace of energy transition,but at the same time,it also posesnew challenges to the safety of PV systems.Among them,the DC arc problem of the PV system has become a key technical challengeaffecting the stable operation of the system.In response to the complexity and urgency of the DC arc issue,the compilation of this white paper aims to comprehensively sort outand introduce the current status,development trends,and practical solutions of photovoltaic DC arc detection and protection