Autumn in hydropower is often the necessity of post-seasonal repairs. As usual, a major part of our volume is work for hydropower. In recent weeks, it was the PGE Dychów Power Plant (88 MW) and PGE Solina (199 MW) as well as the Bulgarian Koprinka Hydroelectric Power Plant (29.4 MW), located near the town of Stara Zagora. Scopes of work were similar and often performed once more: machining on large diameters. How it done in hydropower