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Mervent river development ![]()
Application : Dams The Mervent hydraulic structures include seven dams on the La Mère and La Vendée rivers, with a storage capacity of 16,600,000 cubic meters. The total project consists of four dams upstream ('heavy' civil works) and three 'lighter' dams. Mervent's primary purpose is to store raw water to provide drinking water, control the flow of La Vendée, create recreational areas, and produce hydropower. Because these facilities were difficult to control (manual flowrate calculation and valve opening/closing), the local authorities decided in 1997 to implement a remote data communication network. Based on its project specifications, SAUR chose SOFREL equipment. The Remote Management system is built around S50 RTUs. As expected, it reports data from the other works (reach levels, history of level variations, alarms) to the Mervent main control room and allows modifying the state of remote controls. For optimum reliability, data is transmitted over a radio link, backed up by the dial-up phone network, thus securing the population living downstream, e.g. at Fontenay-Le-Comte. S50 computing power is used to regulate Pierre Brune and Albert dams (i.e. two of the four dams upstream). For operators, the SOFREL Remote Management system provides high-quality support:
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