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Solarmodulescanconvertsolarenergyintodirectcurrent,thenconvertedintoalternatingcurrentbyinverter,whichcanbeconvenientlyusedinindustry,commerceandhouseholds.Photovoltaicpowerplantscanbebuiltontheground,roofs,water,hillsides,etc.Thepowergeneratedbythepowerplantscanbeusedbycustomersfortheirownuse,andtheremainingcanbesoldtoStatePowerGrid.