Hidroeléctricas del Río Arma S.A.S. E.S.P. (Hidroarma) has been engaged in the generation of hydroelectricity in Colombia since 2009. Based in Medellín, it is developing the 94MW Encimadas and 68MW Cañaveral hydraulic projects in Caldas and Antioquia departments respectively. Hidroarma is controlled by the institute for development of Antioquia, IDEA, a public, decentralized, departmental institution, with 99.14% of the capital stock. The remaining shareholding of 0.86% is held by IDEA's employee fund FEIDEA.