Redeia Corporación, S.A. operates as the sole transmission system operator (TSO) for the Spanish electricity grid. Originally founded as Red Eléctrica de España, the company's core business is the regulated transmission of electricity, which accounts for the vast majority of its revenue and earnings. Beyond its domestic grid operations, Redeia manages international electricity transmission assets, primarily in Latin America. The company also operates a telecommunications division through its subsidiary Reintel, which manages an extensive dark fiber optic network. As the national grid operator, Redeia plays a central role in Spain's energy transition by integrating renewable energy sources, developing energy storage solutions, and expanding cross-border interconnections.
