The Iberian Energy Storage Research Center (CIIAE) came into being through the signing of an agreement by the General State Administration, CIEMAT (the Center for Energy, Environmental and Technological Research), and the Government of Extremadura, aimed at increasing and accelerating investment in R+D+I sustainably over the long term and stimulating the technological and scientific response to green energy production management, in particular with regard to the production, storage, transportation and industrial applications of hydrogen; thermal energy storage for industrial use, and the most relevant electrochemical energy storage technologies such as Li, metal-air, flow batteries, etc.