Battery Systems of Large Capacity in Power Systems

Electrical power plants, as the fundamental part of the entire power system, must be stable and reliable. Their stability depends on balance between electricity production and consumption. Any imbalance between electricity production and consumption can lead to system instabilities. Battery systems provide a solution to these instabilities, such as reducing peak loads and managing daily load levelling. To effectively support the system, battery systems must have sufficient capacity. This paper compares the main classifications of secondary batteries used in electrical power plants, as well as the challenges they address during peak load events.