1.3 Uncertainty

The estimates made for this study are subject to very large uncertainties, are based on scoping analyses and therefore are only indicative. They could change substantially over time as technologies, storage capacities, equipment costs and other variables change. They are based on rule-of-thumb techniques for estimating equipment sizes and the costs of individual items of equipment and associated services. More detailed and extensive feasibility studies, based on more data, need to be undertaken before investment in any CO2 transport and injection project could be considered.