As　China　has　pledged　to　become　carbon　neutral　by　2060,　electrifying　its　energy　sector　is　no　doubt　one　of　the　priority　measures　to　support　the　transition　towards　a　more　sustainable　and　decarbonized　energy　system.　Solar　photovoltaics　(PV)　has　been　known　as　one　of　the　most　promising　renewable　technologies　to　facilitate　the　electrification　of　energy　systems.　The　feasibility　of　utilizing　PV　to　implement　a　nationwide　decarbonized　electricity　system　now　becomes　an　urgent　unanswered　question,　especially　in　the　context　of　global　climate　change　and　rapid　economic　growth　in　China.　Here,　by　using　a　GIS-based　multiple-criteria　decision-making　approach　we　address　this　question　by　conducting　a　comprehensive　feasibility　analysis　with　consideration　of　various　economic,　technological,　logistical,　and　climate　change　factors.　We　show　that　it　is　feasible　for　China　to　fulfill　a　net-zero　electricity　system　by　2050,　through　the　installation　of　7.46　TW　solar　PV　panels　on　about　1.8%　of　the　national　land　area　(mostly　in　western　China)　with　a　total　capital　investment　of　4.55　trillion　USD　in　the　next　30　years.　Besides,　we　show　that　future　climate　change　may　lead　to　a　slight　decrease　(less　than　5%)　in　solar　energy　potential,　but　this　would　not　affect　the　capability　of　the　nationwide　PV　system　to　meet　the　need　for　a　fully-electrified　energy　system.　©　2022