For our customer, the Elektro Celje, we have carried out a project of the revitalisation of the SHPP Mislinja. In the scope of this project, the guide vane section was reconstructed to accommodate self-lubricating bearings. The reconstruction of the turbine thrust and radial bearings involved the replacement of sleeve bearings with rolling bearings. The customer resolved on this substitution because excessive heating of the existing bearings could not be avoided despite the cooling system. Now, the rolling bearings run at lower temperatures without the need for cooling. We also carried out a general overhaul of the generator and the hydraulic system.