Currently, decarbonization is one of the biggest goals of the ESG agenda within companies, being an important challenge for industrial sustainability. In this course, technological alternatives for the use of renewable energies will be presented, as well as a Process Systems Engineering tool that allows the selection of the cleanest energy sources for the greatest reduction of CO2 emissions. Thus, participants in this course will have the knowledge of an important technical support to assist the decarbonization process in the oil and gas industry, incorporated into energy planning.