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Abstract: “Integrated infrastructure for CO2 transport and storage in the West Mediterranean”, known by the acronym COMET is an FP7 project, funded by the European Commssion. COMET Work Package 3 aims to identify and to evaluate geological structures and formations that have a potential to host CO2 captured from industrial plants. Although these structures can be just defined through their location, geometry and capacity, there are many other factors that will have an influence in the behaviour of the storage, such as injectivity, salinity, sealing rocks, etc. Many of these factors are studied within COMET and their values are included in generated databases. Moreover, COMET Project also aims to evaluate different scenarios of CO2 sources and sinks in the West Mediterranean region, in order to propose most effective settings for CO2 transport and storage networks. The goal of COMET is to use all available geological parameters in order to obtain a qualitative qualification of the storage sites. This qualification will be useful for network modellers who will use it as a tool to decide where most effective solutions can be found for linking CO2 sources and sinks. Moreover, once storage sites are identified, evaluated and ranked, a quantification of the potential storage costs has been carried out. These costs are used as a first approach to much more detailed models that are under development in other Work Packages. [Copyright &y& Elsevier]

Abstract: This paper presents results of potential CCS infrastructures in the West Mediterranean region including trajectories for CO2 pipelines. The preliminary results are generated with a combination of geographical (GIS) and partial equilibrium optimization modelling (MARKAL/TIMES-COMET). Furthermore, as a result of active stakeholder involvement in the research project, the CCS infrastructures were critically reviewed and obtained insights were used to improve the models and their input parameters. Stakeholders’ feedback regarding difficulty in crossing hard rock terrains and the reasonability of trying to replicate the existing natural gas network, had a large impact on the resulting CCS infrastructure. [Copyright &y& Elsevier]