First, the ship was retrofitted with frequency drives for each of its four thrusters. This allows one or all of the thrusters to be selected and available for use without consuming any power, unless demanded by the operator on the bridge. This can lead to significant energy savings, as the thrusters do not turn and thereby consume power unless needed. This is particularly the case when the vessel is in Dynamic Positioning (DP) mode, as the thrusters only operate when commanded by the DP system – and then only up to the power required, rather than turning continuously at full RPM without a frequency drive.
All engine room fans were also fitted with frequency drives, another key component in ensuring fuel-efficient consumption.
While in combinator mode, which is used for steaming, the main engines’ RPM can be reduced, along with the frequency of the shaft generators. The vessel has also been fitted with the latest cutting-edge fuel flow meters, which live-track all fuel consumption.