Laxá III Power Station

Client Landsvirkjun, National Power Company of Iceland
Location Laxá river, Iceland 65°48'58.6"N 17°18'33.5"W
Scope Of Work During winter, ice covers the bay temporarily and previous settled sediments are eroded and transported to the intake. This HPP suffers from both sedimentation and ice transport. The ice can carry large material, including rocks that can reach the machinery.
Schedule 2016

Project Detail

 

13.5 MW, Run-of-River, estimated to be commissioned in 2017.  Annual production of 92 GWh The head is 39 m and the discharge is 43 m3/s.

Sluicer

Solution: SediCon proposed a combined solution of SediCon Gravel Excluder and SediCon Sluicer. One Ø355 SediCon Sluicer was installed together with a Stafsjø knife gate valve, DN300.  The Gravel Excluder will remove rocks from the intake and the SediCon Sluicer will remove finer sediments inside the tunnel. In addition, a monitoring system consisting of pressure cells and piezometers was installed to monitor the sediment levels.

Implementation: The installation started in October 2016 and was completed in January 2017.

Results: The SediCon Sluicer is estimated to remove 200 m3 of sand per hour.

 

Download Brochure – Sluicer

 

Gravel Excluder

Solution: SediCon proposed a combined solution of SediCon Gravel Excluder and SediCon Sluicer. One Ø630 SediCon Gravel Excluder was installed together with a Stafsjø knife gate Valve, DN600. The Gravel Excluder will remove rocks from the intake and the SediCon Sluicer will remove finer sediments inside the tunnel. In addition, a monitoring system consisting of pressure cells and piezometers was installed to monitor the sediment levels.
Implementation: The installation started in October 2016 and was completed in January 2017.

Results: The SediCon Gravel Excluder is estimated to remove 300m3 of sand per hour

 

Download Brochure – Gravel Excluder