Smart grid technologies have increased the grid’s efficiency. They also have improved its resilience and addressed power-quality issues, but energy storage technology has been quietly becoming an important part of those strategies. Significant emphasis has been put on energy storage systems (ESS), making the power grid stronger and more resistant to outside forces such as extreme weather, congestion and security issues. A growing emphasis also has been placed on the regionalization of the power-delivery system to make it less vulnerable to disruptions. | 
