The investment, which will help restore 100% availability at the storage plants and improve the degree of efficiency by more than 2%, comes following comprehensive inspections at the projects.

Mayrhofen and Rosshag were originally commissioned in 1969 and 1972 respectively and are part of the Zemm-Ziller power plant group. The refurbishment work is likely to include replacing or repairing the turbines, pumps and generator components, and introducing modern automation technology.