The steam was gradually substituted by the electricity. First, were installed electrical power stations that generated electricity from water streams or from steam engines. One of the most important  Companies in Linares was the Mengemor.
In the Hydroelectric Central of El Arquillo, opened in 1921 in the Guadalimar river, Mengemor used generators turbines drove forward by water streams, as well as steam turbogenerators used as thermal complement.
In several mines, as in El Guindo, were installed power stations drove forward by steam engines.
THE ARRIVAL OF THE ELECTRICITY