The Ban Ve hydroelectric power plant has installed 12 rain gauge stations in neighboring Laos.
(Baonghean.vn) - This information was announced at a meeting between the working group of the Central Steering Committee for Disaster Prevention and Control and the Standing Office of the Nghe An Provincial Steering Committee for Disaster Prevention and Control and Search and Rescue, chaired by Major General Tran Van Nam - Deputy Commander of the Coast Guard Command, on July 9th.
Accordingly, the investor, Ban Ve Hydropower Company, has invested in installing a hydrological flow measurement station in My Ly commune, Ky Son district; and collaborated with the meteorological and hydrological monitoring unit to install and purchase automatic rainfall measurement data from 21 rain gauge stations in the basin, including 9 stations in Vietnam and 12 stations in Laos.
This measure aims to overcome the limitations in flood forecasting information over the years due to the Ban Ve hydroelectric reservoir project having a catchment area of 8,700 km².2, of which 80% is within Laotian territory, and only 20% is within Vietnamese territory.
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| Ban Ve Hydropower Company installs rain gauge stations in Laos. Photo: TC |
Furthermore, to ensure communication and information dissemination to the authorities and the public during reservoir operation, in 2020, Ban Ve Hydropower Company also committed to maintaining contact with local authorities at all levels, from province to district, commune, village, and hamlet. They installed a flood warning loudspeaker system in the downstream area and collaborated with Viettel to send automated text messages to authorities, organizations, associations, and individual households during the 2020 rainy season.
The Ban Ve hydroelectric power plant is the largest hydroelectric project in Nghe An province, built on the Nam Non River in Yen Na commune (Tuong Duong district). Construction began in August 2004 with a total investment of 7,800 billion VND and a designed capacity of 320 MW. The dam is 135 meters high, with a normal water level of 200 meters and a flood control water level of 192.5 meters.
The Ban Ve Hydropower Dam has a safety rating capable of withstanding floods with a flow rate exceeding 10,500 m³.3/s, corresponding to a flood that occurs only once every 5,000 years. Since it began production, the biggest flood here was the one at the end of August 2018 with a discharge volume of 4,260 m³. Since it started production, the biggest flood here was the one at the end of August 2018 with a discharge volume of 4,260 m³.3/s, lower than the design level of 10,500m3After fulfilling its flood control role for the downstream area, the reservoir began accumulating water on September 1st to supply water to the downstream area during the dry season of the following year.
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| Diagram of rain gauge station installation locations in Laos. Photo: TC |
