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Customized informatics tools for the hydropower reservoir management optimization_D3.4a

Date: 1 June 2011

Actually it is a common practice to base reservoir operating rules on current information about reservoir storage without direct use of inflow forecasts. The justification is that inflow forecasts are uncertain. However, there is a growing interest in taking account forecast information, including the related uncertainties, to improve levels of flood protection through more effective use of available reservoir capacity.

Hydropower reservoirs, in fact, under certain circumstances may be used to attenuate and delay floods in order to contribute to protect the downstream territory. The overall goal is to obtain as much flood control as can reasonably be achieved with the existing infrastructure.

To store flood volume in reservoirs, water elevation has to be lowered in advance to partially empty the reservoir. In order to attenuate and delay efficiently floods without limiting excessively the decrease of hydropower production and impounded water volume (useful for other uses e.g. irrigation, drinking, etc.) it would be necessary to change, during the flood event, water elevation by opening/closing dam outlets in accordance with flood forecast. This “dynamic” way of dealing with the flood (whereas a “static” way would lower water elevation notwithstanding flood forecast) would imply the prediction of flood events in terms of peak and time evolution, telemetric data acquisition and processing and to be aware of reservoir operation components.

In order to provide a support system for emergency plans for flood control and dams management, a software system, called HaltFlood, was developed in RSE research activity. This report describes the software and the procedures that allow creating a dams management project.

» See_Hydropower_WP3_D3.4a_RSE_110531.pdf