AbstractThis study developed an economic evaluation model for CCS (Carbon Capture and Storage) chain where pipelines and ships were expected to come into play in transporting CO2 from power plants to offshore storage sites. In case of ship-based transportation, several alternatives with various operating conditions were feasible, demanding optimization of the transportation mode. The economic evaluation model was based on the LCC (Life Cycle Cost) methodology where the operational availability of equipment and systems were taken into consideration in addition to the capital and operating expenditure. The economic evaluation model was applied to the LCC estimation of two cases. The LCC results showed that the governing factor was the OPEX, dominantly affected by the liquefaction system.