In our country, the electric cooperatives appeared in the 1920\u27s decade as a popular reaction against the high bills and deficient service given by the enterprices of abroad capital that were in charge of energy generation and distribution.The Córdoba\u27s province was not indifferent to this phenomenon, in this article we have the purpose to show the circumstances in which have place the Cooperativa de Luz y Fuerza de Río Tercero in 1933, this was different from the others in Córdoba\u27s province because it did not generate the energy that distributed but bought it to the hydraulic usine of Rio Tercero\u27s dock, and at the same time we want to rebound its evolution and the repercussions of its work during its first two decades of lif...