In the past, the selection of an energy resource for electricity generation was dominated by finding the least expensive power generating plant. Although such an approach is essential, there is growing concern about other aspects of power generation such as social, environmental and technological benefits and consequences of the energy source selection. The aims of this paper are first to introduce a life cycle assessment (LCA) scheme with the aid of the NETS (Numerical Eco-load Total Standardization) method that we have newly proposed. This method provides a numerical measure for evaluating the quantitative load of any industrial activity on the environment, and has been used to analyze the energy flow and the environmental loads of various power generation systems. A second goal is to develop a computer program to examine the applicability of technology options based on cost performance and environmental load reduction. A final goal of this work is to select the power system using life cycle assessment (LCA) and life cycle costing (LCC). As a result, environmental load and economical cost for various power generation systems are discussed from the LCA point of view for further ecological improvement.

Steen, B., and Ryding, S. O., 1992, “The EPS Enviro-Accouting Method; An Application of Environmental Accounting Principles for Evaluation and Valuation of Environmental Impact in Product Design,” Swedish Environmental Research Institute (IVL) Report.
Heijungs, R., Ed., 1992, “Environmental Life Cycle Assessment of Products-Guide and Background (English Ed.,)” Leiden: Center of Environmental Science.
Kato, S., and Widiyanto, A., 1999, “A Life Cycle Assessment Scheme for Environmental Load of Power Generation Systems with NETS Evaluation Method,” Proc. of IJPGC 1999, ASME, Vol. I, pp. 139–145.
Kato, S., Nikai, Y., Maruyama, N., Takai, H., Widiyanto, A., and Kojima, Y., 1999, “A Proposal of ESS-NETS and Its Application for Industrial Products (in Japanese,”) Proc. of ’99 Symposium on Environmental Engineering, pp. 360–364.
Houghton, J. T., Callander, B. A., and Varney, S. K., 1992, “Climate Change 1992,” The Supplementary Report to the IPCC Scientific Assessment, Cambridge University Press.
Uchiyama, Y., and Yamamoto, H., 1992, “Energy Analysis in Power Generation Plants (in Japanese),” The Economic Research Center, Report.
Sciuba, E., 1999, Extended Exergy Accounting: Towards an Exergetic Theory of Value, Efficiency, Costs, Optimization, Simulation and Environ-mental Aspects of Energy Systems (ECOS’99), pp. 105–113.
You do not currently have access to this content.