The results quite clearly demonstrates that focusing solely on power or CAPEX when searching for the optimal pressurisation pathway may not identify the best solution minimising the levelised cost of pressurisation. However, it also depends on the project -whether it is CAPEX sensitive or OPEX sensitive, in which case the LCOCC may not be the determining metric. Further, the variance in LCOCC is relatively low, the difference from lowest to highest is 7.3 % for the investigated range.