The Iberian Center for Research in Energy Storage (CIIAE) in Cáceres (Extremadura) aims at increasing and accelerating investments in RD&I sustainably over the long-term and stimulating the technological and scientific response to green energy production management. CIIAE will be equipped with state-of-the-art laboratories to develop the entire energy storage cycle at different scales, from the physical chemistry of materials to their scale-up and application, including the testing of connected storage systems. It will also have unique infrastructures that will allow, among other things, the testing of high-power equipment and networks and micro-grids, for pilot testing on an industrial scale. This project was founded by the governments of Portugal and Spain in collaboration with the government of Extremadura and is partly financed by the Recovery and Resilience Facility (around EUR 53 million out of a total of EUR 75 million between 2021 and 2023). The decision to set up the centre was published in the Official Journal on 28 December 2021.