Ban Ve Hydropower Plant installs 12 rain gauge stations in Laos
(Baonghean.vn) - That was the information announced at the meeting between the Central Steering Committee's working delegation on natural disaster prevention and control and the Standing Office of the Steering Committee for Natural Disaster Prevention and Control and Search and Rescue of Nghe An province, chaired by Major General Tran Van Nam - Deputy Commander, Coast Guard Command on July 9.
Accordingly, the investor, Ban Ve Hydropower Company, has invested in installing a hydrological station to measure flow in My Ly commune, Ky Son district; Coordinated with the hydrometeorological monitoring unit to install and purchase automatic rain gauge data from 21 rain gauge stations in the basin, including 9 stations in Vietnam and 12 stations in Laos.
This work aims to overcome the limitations in flood forecast information over the past years because the Ban Ve hydroelectric reservoir has a basin area of 8,700km2.2, of which 80% belongs to Laos, only 20% belongs to Vietnam.
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| Ban Ve Hydropower Company installs rain gauge stations in Laos. Photo: TC |
In addition, to ensure communication and information to the authorities and people during the operation of the reservoir, in 2020, Ban Ve Hydropower Company also committed to maintaining communication with local authorities from the province to the district, commune, village, and hamlet. Installing a flood warning loudspeaker system in the downstream area, coordinating with Viettel to send automatic messages to authorities, organizations, unions, and each household during the 2020 storm season.
Ban Ve Hydropower Plant is the largest hydropower project in Nghe An, built on the Nam Non River, Yen Na Commune (Tuong Duong). The project started construction in August 2004, with a total investment of 7,800 billion VND, and a designed capacity of 320MW. The dam height is 135m, the normal water level is 200m, and the flood prevention water level is 192.5m.
The safety level of Ban Ve Hydroelectric Dam can prevent floods with a flow of over 10,500 m3/s, corresponding to a flood that occurs once every 5,000 years. Since it was put into operation, the biggest flood here was the flood at the end of August 2018 with a discharge of 4,260 m3/s, less than the design level of 10,500m3/s. After performing the task of reducing floods for the downstream, from September 1st, the reservoir will begin to store water to serve the water supply for the downstream in the dry season next year.
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| Diagram of rain gauge installation locations in Laos. Photo: TC |
