Given the deficiencies of the current efficiency certification programs, we believe it is high time we proposed something better and more modern, addressing the increasing demands of our time. The older approaches clearly show their age, and their inventors aren’t able to make dramatic changes now since this would be the end of their entire databases, and all PSUs should be re-evaluated. A new methodology is required to accurately measure a PSU’s efficiency, which can be easily modified without sacrificing the entire database of test results. According to our experience, the more data a test methodology offers, the easier it is to modify/adjust it when this is needed.