Agra, the New Operation Model for the "La Rance" Tidal Power Plant

The "La Rance" tidal power plant, in operatiorr since 1967, needs a sophisticated program to compute the optimal operation of its 24 bulb-units and 6 gates. The first version of this program, 12 year old, had to be replaced. In that paper, we state the optimal operation problem, choose the optimization method, and describe the dynamic programming method used in the new version.