Since the beginning of the world industrialization, Electric motors are the most convenient and easy to use device to convert electric power into mechanical movement. Since a couple of decades mandatory efficiency classes for electric motors have been increased significantly and motors losses reduced by almost 40% driving significantly up the use of raw materials (Steel & Copper), not in line with the new Green Deal expectation to cut the carbon footprint of such products (copper is mostly not produced in Europe and Electromagnetic steel is more and more imported outside EC). To deliver the results one 11kW electric motors has seen its active material content from IE2 increased by 37% for IE3 and 55% for IE4. Future’ trends in energy efficiency classes is to go higher than IE3 and move to IE4 (already in place for power >75kW) and level IE5 is now defined in standard. This will push the use of more material which is not in line with the new Material Efficiency standards and booming carbon footprint of electric motors. Today engineers are facing a key challenge: how to meet efficiency classes with respect to the new material efficiency rules and some scarcity effects. However the very promising values of efficiency and material content will emphasize need to deploy them. Electric motors will have to evolve as well as the end users to accept new technologies less demanding in material and more efficient. Technologies are existing today to comply with both energy savings requirements and raw materials contents. . It shall start tomorrow. As supported for many years by CEMEP, the use of variable speed is offering more energy savings than higher escalation of classes to IE4 or 5 or …. .