“…Several pipeline costs models for CO2 have been published in the course of the past ten years (Chandel et al, 2010;Heddle et al, 2003;International Energy Agency GreenHouse Gas R&D Program (IEAGHG), 2005;McCoy, 2009;Mikunda et al, 2011;Parker, 2004;Serpa et al, 2011), with important discrepancies among them. Some of the models are only based on a gas pipeline cost model and do not take into account the lineic mass differences, or are not based on the same geographical region.…”