Power Machines manufactured and delivered the main power equipment to restore the Sayano-Shushenskaya HPP - ten hydraulic turbines with hydro generators with a capacity of 640 MW each and excitation systems for them. Currently, the largest hydroelectric power plant in the country is equipped with new, modern equipment with improved performance and meeting all the requirements for reliability and safety. The service life of new units has been increased to 40 years, while the maximum efficiency of the hydraulic turbine is 96.6%. Particular attention is paid to the safety of new equipment operation.