Around the world, energy performance requirements and test methods are being implemented and regularly revised for a range of domestic, commercial and industrial products and equipment. A significant amount of analytical effort is required to develop these requirements and optimise them to best reflect overall policy objectives; however, very often this work is done with only limited or partial knowledge of similar activities that have been done in other economies. Effort can be saved and outcomes improved for many products through properly reviewing published studies in other economies and utilising the information that is relevant in the local context. This paper presents a practical illustration of the potential to improve the quality of such analyses through four examples working on transformers, televisions, electric motors and external power supplies. This paper also discusses barriers to leveraging these analyses and makes recommendations around leveraging cross-economy analyses to accelerate global adoption of test methods and energy-efficiency requirements.