This book constitutes the proceedings of the XXX Conference on Electrical and Electronic Engineering (JIEE 2021), held in Quito, Ecuador, on December 15 - 17, 2021, proudly organized by Facultad de Ingeniería Eléctrica y Electrónica in Escuela Politécnica Nacional in collaboration with GDEON. JIEE is an international event that allows educators, students and researchers from universities and polytechnic schools to present their academic and professional work. It provides an opportunity to discuss and exchange ideas on issues, trends, and developments in the related fields of electrical, telecommunications, information networks, automation, industry, and electronics. Presenting high-quality, peer-reviewed papers, the book discusses the following topics: Industrial Control and Automation Power Systems Information Networks