News - Published on 11 September 2026

Custom engineering for the Vianden pumped-storage power plant

120 tonnes, restricted space and demanding safety requirements: for our customer Société Électrique de l’Our (SEO), we developed and manufactured a new transport and turning device for the removal of heavy rotors at the Vianden pumped-storage power plant.
The challenge lay in safely setting down, turning and positioning a 120-tonne rotor within a highly restricted underground environment, before loading it for heavy transport.

KARL HUGO delivered a solution specifically designed for this application, from engineering and structural calculations through to manufacturing. We also provided the required calculations and documentation for a CE-compliant solution.

Read our latest blog article to find out how the solution was developed and why this project required much more than just manufacturing.

Read the full article