Abstract
Recently high economic growth in Mongolia increases power demand rapidly. Meanwhile, it is assumed that water demand for power supply has risen because power generation requires much water. Additionally, Mongolia belongs to water scarce areas, thus it is important to consider sustainable power supply under the situation of limited water resources. Therefore, in this study, I have evaluate water requirements of power supply by organizing a water inventory of power supply in Mongolia using a bottom-up approach. As the results, the power supply withdraws water of 230 to 266 million cubic meter (MCM) while consumes 7.4 to 8.6 MCM Furthermore I found that 12% to 21% of the water requirement caused by imported electricity from Russia. Finally, I consider three alternatives for appropriate importation systems of electricity in environmental perspectives.
