Modelling and Simulation of Coupled Systems-Water and Energy - Case Study of the Water Reservoir System of the Rimac River Catchments

Approx 80 % of the fresh water consumption of the megacity of Lima (Peru) is covered by the reservoir system of the Rimac river catchments. A further task is the production of electrical energy by hydropower plants. Lima, with its 8 million inhabitants, is situated on the very dry pacific coast of Peru. Continuous water supply is a challenging task. Water supply and energy production lead to operational conflicts regarding the water releases of the reservoir system. Currently, the decision about the water releases is based on a general discharge Plan, precipitation forecast and a simplified reservoir model. This contribution presents the first working steps for the optimisation of the operation of the reservoir system based on a more detailed modelling approach. The model of the reservoir system has been simulated for two different hydrological periods (dry and humid) including the water discharge plan of the operating company.