An environmental and economic evaluation of the lignite power generation system by using the life cycle analysis principles
by Dimitrios-Sotirios Kourkoumpas; Georgios Stamatiou; Sotirios Karellas; Panagiotis Grammelis; Emmanuel Kakaras
International Journal of Global Warming (IJGW), Vol. 13, No. 3/4, 2017

Abstract: The present study aims to evaluate the power generation system based on the lignite fuel in environmental and economic terms. Three alternative firing cases are examined: 1) raw lignite firing; 2) 30% pre-dried lignite co-firing; 3) 6% biomass co-firing case. The implementation of the life cycle analysis (LCA) methodology proves that the overall environmental footprint can be decreased by as much as 4.5% in the case of pre-dried lignite co-firing, while the lignite mining activities represent about 32% of the total. The implementation of the life cycle costing (LCC) methodology indicates that the total electricity generation cost is decreased by about 0.92 €/MWhe in the case of pre-dried lignite co-firing and about 1.22 €/MWhe in the case of biomass co-firing. A sensitivity analysis based on the total net electric efficiency, the raw lignite composition, the CAPEX-OPEX of the power plant, the biomass direct fuel cost and the external cost of CO₂ was carried out, in order to identify the range of the results depending on the impact of each parameter.

Online publication date: Wed, 11-Oct-2017

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