This article by David Frankel and Amy Wagner (June 2017) shows why it is reasonable to expect battery storage to disrupt the power and utility sector.
Source: Battery storage: The next disruptive technology in the power sector | McKinsey & Company
This older article by Paolo D’Aprile (August 2016) has good economic insight into the extreme segmentation of electricity markets ane their suitability for batterry or other storage of energy.
Energy storage can make money right now. Finding the opportunities requires digging into real-world data.
Source: The new economics of energy storage | McKinsey & Company