Grimsel 4 Pumped-Storage Power Station, Lot 1 for the reinforcement of the headwater channel and Lot 2 for the underwater gates

KWO is inviting tenders in two lots for the supply of armour for the headwater channel and two sets of double underwater gates for the Grimsel 4 pumped-storage power station.

The tender covers the design, manufacture, supply, installation and commissioning of the drive waterway armouring on individual sections of the drive waterway, as well as a total of four underwater gates (2x2) on the submerged side of the suction pipes for the two pump-turbines.