Theoretically they could put capacitors in the grid to take some of the little spikes and dips (just put a couple at each transformer),(reply>), Capacitors are for applications where you want to be able to deliver the stored energy very quickly (fractions of a second), but don't mind not being able to store much of it. They're devices with a high power density, but a low energy density. <br><br>Grid operators probably do already use some capacitors for smoothing out really short spikes, but the sort of spikes that were covered here are much too long-lasting for capacitors.