As the result of falling costs and greater flexibility needs, battery storage is playing a growing role in power systems worldwide, acting as a “multi-tool” that can provide a range of critical system services at once. According to the latest data, the deployment of batteries expanded strongly in 2025 and broadened across markets – with rapid growth in countries such as Australia and Saudi Arabia, where storage is increasingly being used to support the integration of rising shares of variable renewables. (Source: IEA) Additional information Texas, Arizona y California son los tres mayores mercados de almacenamiento de energía en Estados Unidos. (Fuente: IEA)