Keywords: decision analysis, electric power sector, environmental impacts, pollution control
Incorporating environmental concerns into electric system expansion planning using a multi-criteria decision support system
A methodology is described for incorporating environmental externalities into electric system expansion planning. It combines a conventional least-cost optimisation tool, an environmental model, and a multi-criteria interval decision analysis system. The methodology can be used to analyse trade-offs between technical, economic, and environmental concerns. A case study in support of an international lending decision is used to analyse eleven power-sector expansion scenarios in terms of total system cost and environmental residuals. The scenarios are then compared by using a decision analysis tool. A brief comparison of interval and traditional decision analysis methodologies is also provided.