Done correctly, and with enough of it, energy storage could be the hero of many grids as the energy transition drives the adoption of more variable resources powered by the wind and the sun. Grid operators stress how important it is for dispatchable generation to help keep the grid in balance when other forms of generation ramp up and down quickly in response to the elements.
In New England, the situation is particularly dire, as was explained by ISO New England in a recent problem statement that kicked off a FERC forum in the region on September 8.