7 MW, run of river, commissioned in 2007. Annual production of 22.7 GWh, net head is 133 m and discharge is 7 m3/s. At the beginning of the 525 m long headrace tunnel there’s a 53 m long and 4.5 m wide pressurized desander.
Implementation: SediCon has delivered two SediCon Sluicers, that allows sediment removal from the pressurized desander without dewatering the tunnel or interrupting the water supply. Each SediCon Sluicer discharges through a separate outlet pipe that are controlled by a valve at the end of the outlet tunnel.
Results: In addition to reduced time and water consumption, the design became less costly as the flushing tunnel was replaced with a much shorter outlet tunnel. The system has been activated several times during rainy season and a few times during dry season.