In this research we will explain the history of the Motive Power Department of the extinct Compañía Fundidora de Fierro y Acero de Monterrey, S.A., since it is one of the few buildings within the Parque Fundidora located in Monterrey, N.L., Mexico that preserves the industrial and architectural vestiges, product of more than 40 years of supplying electrical energy to the Monterrey steel mill. The contribution to the industrial heritage of this steelworks (1900-1986) is to learn about the history and development of its technological equipment, as well as the people assigned to the motive power department and to revalue the workers' memory within the new uses of architectural recycling where it used to be for industrial production and now with its new uses for social and cultural production.