Energy Storage for Power System Planning and Operation offers an authoritative introduction to the rapidly evolving field of energy storage systems.
Energy storage systems help to bridge the gap between power generation and demand and are useful for systems with high variability or generation-demand mismatch.
Energy storage systems (ESSs) in the electric power networks can be provided by a variety of techniques and technologies.
Energy storage systems that can operate over minute by minute, hourly, weekly, and even seasonal timescales have the capability to fully combat renewable resource variability and are a key enabling technology for deep penetration of renewable power generation.
In general, storage systems are categorized based on two factors namely storage medium (type of the energy stored) and storage (discharge) duration. In the first type classification, the ESSs are divided to mechanical, chemical, and electrical storage systems based on the form in which the energy is stored.
The vast majority of long-duration grid-scale energy storage systems are based on mechanical systems such as pumped hydro or compressed air energy storage. Improvements to these systems and developments of other systems for cost-effective long-duration energy storage are needed.