소양강수력 연간발전량 재산정 조사 연구

Abstract

Greenhouse gas emissions driven by increases in global energy consumption have caused changes in the climate, such as severe drought or localized torrential downpours. The operations of hydropower dams are also expected to change. The amount of rainfall variations has the most influence on the Hydraulic power, which has increased from 787 mm to 2,204 mm. Since 1990, the drought periodicity has shortened from the 5~10-year-cycle droughts to 2~3-year-cycle droughts. Hydroelectric power, as clean electricity generation to counter climate change and environmental pollution has become a greater priority. On the other hand, there is difference between the assessed annual output of a dam establishment and the actual output of a real condition, because of climate change. For a short- and long-term demand supply program, modification of annual energy production will be necessary. In this paper, the inflows into dam were classified into five categories (37, 20, 15, 10, or 5 years) and the annual energy production was determined using simulation models of reservoirs. (HEC-ResSim). The pattern of power supply was analyzed and compared by reflecting a growing trend of the average rainfall from climate change. A figure of 483 GWh based on inflows into the dam over the past 10 years was appropriate for the annual energy production of the Soyang River hydroelectric plant.