Economic evaluation of different-scale gas-steam power plants including costs of decommissioning replaced units
Abstract
The prospect of increasing energy efficiency and reducing power plant emissions (including CO2) results in an increased interest in technologies using natural gas. In addition, in view of the possibility of exploitation of shale gas deposits that could lead to a reduction in fuel costs, economic analyses of the construction of new gas-steam systems seem very interesting. An important factor affecting the profitability of new installations is the selection of the power output capacity of the planned units. This factor is also essential if the investor’s capital resources are rather limited. If it is impossible to introduce new units into the power generation system, it is important that the economic analysis should take account of the costs related to a premature decommissioning of power units. This paper presents an analysis of two gas-steam systems with a different power output capacity. The minimum selling prices of electricity are determined. For decommissioned power plants, the conditions (i.e. electricity costs) which make investments in new gas-steam systems equally profitable are defined.References
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[7] Chmielniak T., Czaja D., Lepszy S.: A thermodynamic and economic comparative analysis of combined gas-steam and gas turbine air bottoming cycle. The 25th International Conference on Efficiency, Cost, Optimization and Simulation of Energy Conversion Systems and Processes. ECOS 2012, Perugia, June 26th – June 29th, 2012
[8] Bejan A., Tsatsaronis G., Moran M.: Thermal design and optimization. John Wiley& Sons, Inc. New York 1996
[9] Bazilian M. RoQues F.: Analytical methods for energy diversity and security. Elsevier, Oxford, 2008.
Published
2014-09-08
How to Cite
LEPSZY, Sebastian; CHMIELNIAK, Tadeusz; CZAJA, Daniel.
Economic evaluation of different-scale gas-steam power plants including costs of decommissioning replaced units.
Journal of Power Technologies, [S.l.], v. 94, n. 3, p. 219--225, sep. 2014.
ISSN 2083-4195.
Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/541>. Date accessed: 03 dec. 2024.
Issue
Section
Energy from Gas 2016 Conference
Keywords
gas-steam systems, economic analysis
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