IEC and ISO are working together to improve the energy efficiency of electric motor-driven systems. To achieve even greater energy efficiencies, whole rotating machines need to be considered in an integrated context. For example, energy efficiency standards for electric motors produced by the IEC need to work with respective mechanical standards for fans produced by ISO, as an integral rotating machine. IEC’s advisory committee for energy efficiency, ACEE, brought different stakeholders from IEC and ISO together in 2022 to form the Joint Advisory Group 22 (JAG 22) “Optimized Energy and Power Consumption of Electric Driven Machine Units”. JAG 22 has been founded by IEC TC2, IEC SC22G and ISO TC 117 and seeks to align system standards for electric motor systems and contribute to their energy efficiency. JAG 22 aims to help to improve interfaces and accelerate the work of TCs when it comes to energy efficiency and lower energy use. It works to bridge any gaps between TCs that the TC liaison-function has historically not covered as such. Common interests were identified early on: the extension of the field of operation of a rotating machine beyond 100% torque and 100% speed, the use of common calculation and interpolation methods for efficiencies of entire motor systems including the variable speed drive (VSD), the necessity to learn about each other’s standards projects in progress before they are published. In addition, many larger industrial systems are designed with separately sourced components, often from different manufacturers and very often oversized and not well matched. JAG 22 works on providing a checklist to assist engineers with selecting such components with the right sizes for optimum energy performance of the individual applications. JAG 22 also works on generating information for the general public about the two sets of test points that presently support the rating of motors and VSDs.