During a machine's design phase a lack of reliable specification data resulting from the use phase specific application leads to energy losses in various discrete manufacturing processes. The reason for instance could be inefficient design of drive components or insufficient machine control. In order to support machine designers with reliable input data to e.g. dimension drive components in energy efficient way, this contribution presents an approach how to measure and interprete energy consumption data of machines during its use phase. This can be applied to derive energy efficiency measures on components level. The identified measures then are implemented during the design phase of the next machine generation or realized during the machines use phase by energy efficient machine upgrading.