Energystorageplaysanincreasinglyimportantroleinmodernpowersystems.Itcanaddvaluetopowersystemsinvariousaspects.Thispaperdiscussespossibleenergystoragesystem(ESS)applicationsandtheirbenefitstopowersystems.Thesystemconfiguration,converterdesign,andrecentfieldinstallationsofanLVconverterbasedESSarepresented.