These are projects in which, from a single generation source, they produce electrical energy and, in turn, thermal energy for an industrial process. These types of projects have been developed in sectors as diverse as the chemical, ceramic, lumber, water purification, etc., the motor element used to be equally varied, carrying out installations with diesel engines, biogas engines, natural gas engines and gas turbines and natural gas.

Under the coordination of the SIEA human team, more than 60 cogeneration facilities have been built, with a total installed capacity of over 150 MW.