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Hydroelectric plant structures kept under close watch. Controlling the risks associated with the operation of hydroelectric structures depends on the quality of their construction, but also on permanent monitoring, for which EDF is responsible.

Some 90 000 sensors installed on 400 hydroelectric structures remotely transmit data in real time. EDF teams can thus regularly assess the condition of the structures and schedule preventive maintenance if need be .

Hydroelectric facilities are designed to accommodate the consequences of extreme weather situations- drought, heat waves, cold snaps, and so on. Flooding is one of the worst such events since it can hamper electricity generation or even damage the structures by increasing pressure on them... EDF has been continuously monitoring the rivers on which its hydroelectric power plants are located for over 40 years.