News

Together with partners, ILF Consulting Engineers was in charge of the site supervision and contract management for the new construction of the Obervellach II hydropower plant as commissioned by ÖBB Infrastruktur AG. This hydropower plant replaces the two existing power plants – Lassach (built in 1905) and Obervellach I (built in 1929) in Carinthia/Austria – they will be decommissioned and partly dismantled.

The planned new hydropower plant will provide traction power (16.7 Hz) and will have a capacity of 38 MW and consist of three water intake structures, an approx. 3.9 km long headrace tunnel and an approx. 0.6 km long storage tunnel with a storage volume of some 60,000 m3. Furthermore, the overall project includes an approx. 1.5 km long pressure pipeline (d = 1.8m) and a power house with two machine units and an approx. 2 km long pressure pipeline (d=0.7 m) including a small hydropower plant (50 Hz) as well as further facilities.