Fuente: WIPO "sustainability" 590088 A system and a method for determining a sustainability metric of one or more inventory groups are disclosed. Each group comprises one or more operational units and the system comprises communication means for receiving at least one of consumption data and one or more inventory parameters associated with each of the one or more inventory groups and for transmitting data related to a determined sustainability metric to a user; storage means for storing data received from the communication means and data obtained by processing the received data; and processing means being in communication with the communication means and the storage means. The processing means is arranged for accessing received data stored in the storage means; determining a model sustainability metric of the one or more inventory groups in at least one model scenario with the model scenario comprising modifying at least one of received consumption data and a received inventory parameter, to assess the effect of the modification on the factual sustainability metric; and transmitting data related to at least one of the determined factual sustainability metric or the determined model sustainability metric to a user, via the communication means.