Alstom has a contract to renovate a pair of hydropower generators for Verbund Hydro Power AG. This project, at the Kaprun Hauptstufe hydropower plant in Austria, will increase the output of the M3 and M4 generators, with commissioning scheduled for April 2016.
The Kaprun Hauptstufe power plant is part of a power plant group located in the Kaprun valley near Salzburg, Austria.
The two generators in Hauptstufe Kaprun have a rated power output of 100 MVA each. Currently, the maximum power output of the power plant is 240 MW. Following the renovation, the total power output of the hydropower plant will increase to 270 MW, contributing to reinforce Austria’s energy supply.
Alstom recently renovated generators for the Edling, Kreuzeck and Bodendorf power plants, and supplied turbines for Gralla and rotary valves for Limberg 2. The company has also completed orders for the exciters and protection systems of various additional machines to the required standard of Verbund Hydro Power AG.
Hydropower plants can convert about 90 percent of the available energy into power, and can therefore achieve high efficiency rates. The Kaprun power plant is a reservoir power plant that has been generating electrical power to cover the peak load all-year round since 1952. The individual plants are monitored and remote-controlled by the central control station in Kaprun. The electrical energy is conducted to the Tauern transformer station, from which it is fed into the national high-voltage grid.