Validation of energy performance in the casting process The case study has been based on, in collaboration with Scania's staff, developing a general methodology for validation of energy performance at object and system level. The case study has been carried out on the sand recycling system and that experiences from other parts that have been validated have been included. The validation has taken place based on the requirements placed on the equipment and the requirements set by affiliated processes / systems and condition-based requirements. The developed validation methodology (guideline) is based on the work carried out by Scania and is generalizable to be used throughout the foundry sector and its processes. It can also apply to validation of not only energy performance but also other issues.