[en] This paper compares the performance of the electricity sector in East Africa. Based on a unique dataset collected from six countries for ten years, the study estimates the technical efficiency scores (TES) and the productivity change using three models: generation, transmission, and distribution. Four facts explain the TES obtained from Data Envelopment Analysis: return to scale, standard deviation, model choice, and country’s specificities. Results show also countries with high TES have also high productivity change. The study recommends to increase the regulation and governance mechanisms, especially through private sector implication the electricity sector value chain.