Abstract
Currently, conventional energy sources i.e. fossil fuels represent the main segment as regards electricity generation. Thus, their
contribution to global CO2 emissions is considerable. This study considers carbon capture and storage (CCS) as a promising
solution for the environmental problems we are now facing. Based on previous research, post-combustion capture (PCC) has
been recognized as being the more appropriate technology for CO2 capturing from the existing power plants. The main purpose
of our study was to investigate the correlation between the efficiency of carbon dioxide capturing and its influence on the
reduction of electricity production efficiency and levelized cost of electricity at the new unit VI of the thermal power plant of TE
Šoštanj, Slovenia. A zero-dimensional model was used for appropriately considering the flows of mass and energy within the
PCC system as a function of carbon dioxide capture efficiency and a rather simple cost model was applied for predicting the
additional levelized electricity cost due to PCC system implementation. By changing the efficiency of the capture system, as well
as the evaluated prices of carbon emission coupons, our results show the possible economic eligibilities of the PCC system in the
future.