 Average annual energy output is 1,600 GWh.The dam is 150 m in height above foundation, with a crest length of 800 m, and the dam fill volume is 15.20 million cubic metres.Crest elevation is 155 m above sea level (ASL) while maximum flood level is 153 m. The maximum operating level is 145 m and a minimum of 120 m. The reservoir surface area at 145 m ASL is 370 km², and with a catchment area of 2,600 km².