Sag / Swell Mitigation : fast response protects sensitive loads from voltage sags and swells caused by grid disturbances High Efficiency : power electronics subsystem has greater than 99 % efficiency , thanks to the low - loss topology of Gridco 's IPR Reactive Power Compensation : regulates power factor by dynamically injecting or absorbing reactive power Harmonic Cancellation : actively corrects source - current and load - voltage harmonic distortion Dynamic and Precise :