Such reduction is justified also by the different power supply between the LS and SU equipment, since the whole LS process is fed with electricity, which is in turn converted into heat, while, in the SU process, the most demanding steps (drying and distillation) are fed with heat that is directly produced by natural gas combustion. The reduced electricity contribution is reflected by a substantial decrease for both the CChl cluster and Feu values. The main contributor for all the examined categories, going from a minimum of 59.1% (FEu) to a maximum of 74.3% (IRa), turns out to be the input limonene, with nearly all (99%) of the impacts associated to the virgin solvent production due to energy consumption.