Can battery energy storage systems support electricity grid modernization?

The flexible operation of battery energy storage systems (BESS) to support electricity grid modernization requires optimal planning and an efficient control strategy. This paper proposes the optimal allocation of BESS with photovoltaic systems for microgrids to enhance grid reliability and flexibility.

What are battery energy storage systems?

Battery energy-storage systems typically include batteries, battery-management systems, power-conversion systems and energy-management systems 21 (Fig. 2b).

What is battery energy storage (BES)?

Battery energy storage (BES) units have many advantages and are used for several purposes in electric systems and distribution grids. They are used not only for peak shaving and voltage regulation, but also for reliability enhancement and dispatching the renewable-based distributed generation (DG) sources.

How does a battery energy storage system work?

The direct current generated by the batteries is processed in a power-conversion system or bidirectional inverter to output alternating current and deliver to the grid. At the same time, the battery energy storage systems can store power from the grid when necessary 24, 25.

Why do we need battery energy storage systems?

Combined with rapid decreases in the costs of battery technology and improving incentives for storage projects (notably the IRA), increasing needs for system flexibility highlight the increasing role of battery energy storage systems, or “BESS” projects, in accomplishing global, national and local clean energy and climate goals.

Can battery energy storage be implemented in a distribution network?

Generally, the battery energy storage (BES) can be implemented in the most buses of the distribution networks as the batteries have less environmental and non-technical constraints. However, the electrical considerations such as power follow, power loss, voltage regulation and etc. affect on optimal location of batteries .