This article studies the possibility of electrical energy generation using distributed generator in Makariza Company. According to the demand of heat in this company, the generators used in this study are simultaneous production of electricity and heat. According to the demand of electric, thermal load consumed by the company and the climate of Colombia province and according to the technical specifications of electricity and heat generation technologies in the world, the best technology is selected. Finally, energy saving and environmental pollution will be analyzed. The analysis shows that the use of the system of simultaneous production of electricity and heat in the company helps to save energy and also to reduce environmental pollution.