An Enviro-Economic Comparison of Two Different CO<sub>2</sub> Avoidance Processes for NGCC-Derived Electricity
Lambert, T.
Hoadley, A.
Hooper, B.
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Lambert T., Hoadley A., Hooper B., 2015, An Enviro-Economic Comparison of Two Different CO2 Avoidance Processes for NGCC-Derived Electricity, Chemical Engineering Transactions, 45, 289-294.
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In order to combat the rising carbon dioxide emission level several technologies have been proposed to deal with the challenge. This paper compares the economic and emission performance of two gas turbine based technologies: integration with solar thermal energy (STE) and post combustion carbon capture and storage (CCS). Both technologies are integrated into a natural gas combined cycle (NGCC) power plant. The comparison is presented using a multi-objective optimisation (MOO) framework to provide the trade- offs between the increased plant CO2 equivalent (CO2e) emission reduction and economic performance for both cases. This has been performed using a dynamic optimisation methodology enabling the calculation of the net present value of the power plants including real electricity price data along with the variable solar radiation. The economic impacts of CO2 pricing and government co-investment are also analysed to determine the required assistance to achieve the economic breakeven point.
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