Due to lack of CAPEX data for actual constructed CO 2 compressor stations, data has been sourced for three natural gas compressor stations: The Egtved compressor station in Denmark, the Wertingen compressor station in Germany and the Everdrup compressor station in Denmark. Key figures for the three compressor stations are summarised in Table . The costs for Egtved have been published by the EPC constractors , whereas the cost for the Wertingen station is published by the owner/operator . The cost data shown for the Everdrup station is for the FEED design . The EPC tenders have also been published and are approx. 111 and 174 MMUSD (in 2023 value), clearly showing a large spread and also highlighting the large uncertainties in these projects, even when FEED design has been passed. CAPEX calculated within the present study is compared for each station and then multiplied with the number of parallel trains. As seen, the current model matches quite closely the data for the Egtved and the Everdrup compressor station, whereas there is a significant difference between the calculated and published numbers for the compressor station.