Electrical energy storage—a review of technology options

Abstract

Matching uneven generation patterns to varying demands for power requires flexibility in the power network. Electrical energy storage technologies now exist to complement mature generation types as well as new forms of renewable generation. Electrical energy storage can also support network management. This paper presents examples of electrical energy storage applications, together with the development status of several technologies, and introduces the regulatory, economic and commercial aspects of combining storage with sustainable generation and operation of grid-connected and standalone power networks.