WPower engineeringWAluminium-conductor steel-reinforced cableWCentrifugal pumpWCheng cycleWElectric power systemWPerformance and modelling of AC transmissionWFeeder line (network)WGrid energy storageWGround (electricity)WGrounding transformerWLoad balancing (electrical power)WOperating reserveWPower engineering softwareWPower plant engineeringWRelayWShading coilWStatic synchronous series compensatorWTehachapi Energy Storage ProjectWTurbineWUtilization factorWValue of lost loadWVoltage symmetrization system