Sichuan main load area controlled hydropower stations can be increased by water storage capacity

Chuanguan News reporter Shao Mingliang

1.123 billion cubic meters, 1.180 billion cubic meters, 1.212 billion cubic meters, 1.21 billion cubic meters, 1.268 billion cubic meters, 1.334 billion cubic meters ...

On August 21, the reporter from Chuanguan reported from the Office of the Flood Control and Drought Resistance Headquarters (Water Conservancy) of the Sichuan Province that since the release of the "Drought Daily" on August 15, data for 6 consecutive days shows that the main load area of ​​Sichuan Province (except western Sichuan western Sichuan (except western Sichuan western Sichuan The water storage capacity of controlling hydropower stations can be increased.

The use of water storage capacity is different from the total water storage capacity, which refers to the amount of water used by water conservancy projects to dispatch. As of August 20, the use of controlling water storage in the control area of ​​the province's main load areas has reached 1.334 billion cubic meters, an increase of 66 million cubic meters from the previous day.

"According to the calculation of the power department, to ensure the safe operation of the power grid, the use of water storage capacity of controlling water power stations in the main load area cannot generally not be less than 1.2 billion cubic meters." Xu Yao, the Sichuan Water Safety and Water Disaster Disaster Defense Center. On the one hand, the increase in water storage capacity is due to the current decline in power load; on the other hand, sporadic rainfall upstream rainfall in the Minjiang River and the Minjiang River have also added some water to the two reservoirs of Zipingpu and Wudu.

On August 26, 2021, the water storage of the Zipingpu Reservoir filmed by the reporter. Shao Liangfeng

On August 17, 2022, the water storage of the Ziping Panel Reservoir was shot at the same location. Photo Conferry of Zipingpu Reservoir Dispatching Center

In particular, the long river dam, Wudu, and Pavilion mouth of Changheba, Wudu, and Tingzou, which have reached or approached the "dead storage capacity" in the early stage, can also increase the water storage capacity slightly compared to a few days ago. Among them, the Wudu Reservoir has increased from 001 million cubic meters on August 17 to 42 million cubic meters on the 20th; the pavilion reservoir also increased from 22 million cubic meters on August 17 to 42 million cubic meters on the 20th.

Although the available water storage capacity has reached 1.334 billion cubic meters, compared with the same period of the same period, the available water storage capacity of the main load area in Sichuan still has more than 70 % less. It is expected that in late August, the water volume of the main rivers in Sichuan will still be dominated by less.

According to the relevant person in charge of the Water Resources Department, as of 8:00 on August 19, the main load area controlled hydropower stations to be stored were 8.15 billion cubic meters, which was 2.5 times the same period of years. Essence In the later period, the mission of water storage is so heavy, but the rivers are not optimistic. How to coordinate?

To this end, the above -mentioned person in charge stated that in the future, the power generation plan and the timing of water storage under the conditions of "abundant, flat, dry, and dead" will be fully considered. Under the premise of the engineering itself and the rolling of the watershed, the water storage and hydration work is carried out in a timely manner, maximizing the use of rain and flood resources, and striving to achieve the expected target of water storage in November to prepare sufficient water for later power generation.

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