Techno-economic assessment of four CO2 Storage sites

Gruson, J.-F.; Serbutoviez, S.; Delprat-Jannaud, F.; Akhurst, M.; Nielsen, C.; Dalhoff, F.; Bergmo, P.; Bos, C.; Volpi, V.; Iacobellis, S.. 2015 Techno-economic assessment of four CO2 Storage sites. Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles, 70 (4). 753-766. 10.2516/ogst/2014057

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Abstract/Summary

Carbon Capture and Storage (CCS) should be a key technology in order to achieve a decline in the CO2 emissions intensity of the power sector and other intensive industry, but this potential deployment could be restricted by cost issues as the International Energy Agency (IEA) in their last projections (World Energy Outlook 2013) has considered only around 1% of global fossil fuel-fired power plants could be equipped with CCS by 2035. The SiteChar project funded by 7th Framework Programme of European Commission gives the opportunity to evaluate the most influential parameters of techno-economic evaluations of four feasible European projects for CO2 geological storage located onshore and offshore and related to aquifer storage or oil and gas reservoirs, at different stages of characterization. Four potential CO2 storage sites have been assessed in terms of storage costs per tonne of CO2 permanently stored (equivalent cost based). They are located offshore UK, onshore Denmark, offshore Norway and offshore Italy. The four SiteChar techno-economic evaluations confirm it is not possible to derive any meaningful average cost for a CO2 storage site. The results demonstrate that the structure of costs for a project is heterogeneous and the storage cost is consequently site dependent. The strategy of the site development is fundamental, the technical choices such as the timing, rate and duration of injection are also important. The way monitoring is managed, using observation wells and logging has a strong impact on the estimated monitoring costs. Options to lower monitoring costs, such as permanent surveys, exist and should be further investigated. Table 1 below summarizes the cost range in Euro per tonne (Discount Rate (DR) at 8%) for the different sites, which illustrates the various orders of magnitude due to the specificities of each site. These figures have how to be considered with care. In particular the Italian and Norwegian sites present very specific features that explain the high estimated costs. For the Italian site, the short duration of CO2 injection associated with a low injection rate makes the CO2 project comparable to a demo project. The Norwegian site is an offshore site located in a virgin area with high infrastructure costs and a combination of injection duration and injection rate that makes the derived costs very sensitive to the discount rate.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.2516/ogst/2014057
ISSN:	1294-4475
Date made live:	06 Oct 2015 15:05 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/511970

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