The aim of this paper is to examine the possibilities for the Abatement of CO2 emissions in the Greek fossil fuel power generation sector. An overview of CO2 capture, transportation and storage concepts, on which the R&D community is focused, is presented. Afterwards, the implementations of post-combustion CO2 capture options in an existing fossil power plant is examined and the consequences on the overall plant performance are determined. Finally, the possibilities of transportation and then underground storage of the pure CO2 stream are analysed taking into account both technical and economical factors. The results of this analysis show that CO2 sequestration is technical feasible for existing fossil-fired power plants in Greece. However, substantially reduction in Plant efficiency is observed due to increase energy demand of the technologies used as well as in electricity production cost due to capital and operation costs of capture, transport and storage of CO2.