The ability of the Power SystemA critical societal System that, in the case of GW-scale gri... to maintain and control the VoltageThe electrical force or electric potential between two point... waveform at any given location, both during normal operation and when disturbances are experienced, such as a lightning strike or powerline failure.
Generally, System Strength is higher in areas of the Power System served by Synchronous GeneratorsA Generation Plant which is directly connected to the Power ... as they can provide short bursts of EnergyElectrical Energy is the product of electrical Power and tim... far above their normal maximums, which helps restore Voltage waveforms to the right shape and level if a disturbance occurs. Conversely, System Strength is lower in areas far from synchronous machines and/or where there is a high density of Inverter Based Resources (IBR)A diverse range of Energy Resources that, unlike many conven....
System Strength can be related to the available Fault CurrentThe unusually elevated Current which flows in the event of a... at a specified location in the Power System: the higher the Fault Current, the greater the System Strength.