Yalong River Basin Hydropower Development Co., Ltd. (hereinafter referred to as "Yalong River Company"), formerly known as Ertan Hydropower Development Co., Ltd., was founded in 1989 and was restructured into a limited liability company in February 1995 according to the requirements of the Company Law.
It was established by the shareholders of the then National Development and Investment Corporation, Sichuan Investment Group Corporation and china huadian corporation at a ratio of 48%, 48% and 4% respectively, with a registered capital of 4.6 billion yuan and a registered place of Chengdu, Sichuan Province.
On March 20 10, the company's equity was changed, and the shareholders were National Development and Investment Corporation and Sichuan Investment Group Co., Ltd., with the capital contribution ratio of 52% and 48% respectively.
Extended data:
Watershed area:
The drainage area above the dam site is 1 16400 square kilometers, accounting for about 90% of the total drainage area of Yalong River. The average annual flow of the dam site is 1670 m3/s, and the annual runoff is 52.7 billion m3. The measured maximum discharge is 1 1 100 m3/s, which occurred in1August 965 10. The historical maximum flow is 16500 m3/s, which occurred at 1863.
Normal water level 1200m, corresponding storage capacity of 5.8 billion cubic meters; Dead water level 1 155 meters, corresponding to a storage capacity of 2.43 billion cubic meters; The regulated storage capacity is 3.37 billion cubic meters, which is a seasonally regulated reservoir.
The dam is designed according to the once-in-a-thousand-year flood, and the flood flow is 20,600 cubic meters per second. The corresponding water level of the reservoir is1.200m, and the check flow of the once-in-a-lifetime flood in 5000 is 23,900m3/s, the corresponding water level is1.203.5m, the storage capacity is 61.800m, and the possible maximum flood flow is 30,000m3/s. ..
Baidu Baike-Ertan Hydropower Station