手法を比較

	エネルギー均等化原価	エクセルゴ環境分析	ランキンサイクル
分野	熱力学	熱力学	熱力学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	2009	2009	1859
提唱者	Lazard	Goran Tsatsaronis and Lucía Meyer	William John Macquorn Rankine
種類	Cost comparison framework	Life cycle and environmental analysis	Thermodynamic cycle
原典	Lazard. (2023). Levelized Cost of Energy Analysis (v17.0). Lazard Ltd.	Meyer, L., Tsatsaronis, G., Buchgeister, J., & Schebek, L. (2009). Exergoenvironmental analysis for evaluation of the environmental impact of energy conversion processes. Energy, 34(1), 75-89.	Smith, J. M., Van Ness, H. C., & Abbott, M. M. (2005). Introduction to Chemical Engineering Thermodynamics (7th ed.). McGraw-Hill. ISBN: 978-0071247009
別名	LCOE, levelized cost analysis	environmental exergy costing, exergy-based LCA	Clausius-Rankine cycle, steam cycle, vapor power cycle
関連	3	3	3
概要	Levelized Cost of Energy (LCOE) is a standardized metric that spreads the total lifecycle cost of an energy project over its lifetime energy output. It enables fair comparison of electricity generation technologies with different capital structures, operating costs, and lifetimes. LCOE is widely used for technology evaluation, investment decisions, and energy policy analysis.	Exergoenvironmental analysis extends exergy-based methods to quantify and allocate environmental impacts of thermal systems. It assigns environmental costs to exergy streams based on upstream lifecycle impacts, revealing which components contribute most significantly to environmental burdens. This enables engineers to design sustainable energy systems by optimizing the trade-off between thermodynamic and environmental performance.	The Rankine Cycle is the fundamental thermodynamic cycle for steam power plants. It describes how thermal energy from burning fuel or concentrated solar radiation is converted to mechanical work and ultimately electricity. The cycle consists of four processes: isobaric heat addition in the boiler, isentropic expansion through the turbine, isobaric heat rejection in the condenser, and isentropic compression by the pump.