rPVgeneratedkWh,essfullystimulatingthemarket.panieshaveextendedtheirproductrangeswithinvertersratedat100-300kWandmore.Mostofthemincludeamaster-slaveconceptforconnecting3,4ormoreinverters.Withthemaster-slaveconceptbothmasterandslavedevicesareconnectedinparallelontheDCsidewiththemastercontrollinghowmanyslavesareoperatingdependingontheamountofsolarenergyavailable.Atlowradiationlevels,paredtothecasewhereallinverterarepermanentlyoperating.TheteamconceptisanotherPVsystemconcept,whichincreasesthesystemefficiencyinmulti-inverterPVsystems.Itisdescribedinthefollowingsubsection.ThePVinverterindustryhasalsobeeninfluencedbythedevelopmentsinthePVmoduleindustrywheresizeandpeakpowerratingofPVmoduleshavecontinuouslyincreasedoverthepastyears.ThishasleadtocostreductionsinproductionandinstallationofPVsystems.