9. Costs and environmental effects of exhaust gas treatment in large combustion plant, case study
Koszty, a efekt środowiskowy oczyszczania spalin w elektrociepłowni – studium przypadku


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Based on the current data regarding one of the large combustion plants (LCP) in Poland, there was determined the
relationship between the costs of exhaust gas treatment applied as a result of progressive limitation of air emissions of certain
pollutants from LCPs in the EU and the costs associated with the environmental effects of emission reduction. The analyses
were carried out in consideration of the emission limits for particulate matter (PM), sulphur dioxide (SO2) and nitrogen oxides
(NOx) laid down in the EU Directives (LCP and IED) and the BAT conclusions. The costs of exhaust gas treatment were
examined as regards the investment costs, at the assumed amortisation period of 20 years, as well as the operating costs
including the increase in electricity used for own consumption. The costs per unit mass of a given pollutant reduced due to
the exhaust gas treatment installation were compared with relevant environmental fees and the avoided external costs related
to the pollutants analysed. There was also performed the analysis of PM, SO2 and NOX concentrations in the areas neighbouring
the LCP under the study. The obtained results clearly show that with careful planning for investment expenditures related to
the construction of the exhaust gas treatment installation, the avoided external costs are several times higher than the incurred
expenses. The benefits of tightening the emission regulations are evident not only in terms of the reduction of the external
costs, but also in the considerable decrease of the concentration at ground levels.