Converteam variable speed systems selected for hydroelectric pumped storage plants in Switzerland
Power plants with variable speed turbines offer the most effective green energy storage solutions, pumping water to a higher elevation during low-cost off-peak times and releasing the power through the same pump-turbines during periods of high demand. Their high flexibility enabled by variable speed drives represents a key asset for the development of renewable energy sources such as wind and solar energy, which feed power into the grid intermittently.
A variable speed turbine solution applied by Converteam has been successfully used for the 1060MW hydro plant in Goldisthal, Germany which features as well the start up process and allows the optimized control over the grid fluctuations during operation. The Linthal 2015-PSW Limmern plant will add 1000 MW to the existing 450 MW plant and will use 4 pump turbines with a capacity of 250 MW each while the Nant de Drance plant will use 4 pump turbines with a capacity of 157 MW with a combined power of 600 MW.
Converteam is supplying 8 MV7000 inverter systems each with a rating from 32 MW to 37 MW in order to control the asynchrounous motor/generators as well as erection, supervision and commissioning services. The completion of both power plants is due to take place between 2015 and 2017.
The utility NDD SA, which is owned by ALPIQ, SBB (Swiss railroad company) and Forces Motrices Valaisannes (FMV) is the operating company in charge of the planned Nant de Drance PPSP. The power plant is to be built in the canton of Wallis. The pumped power storage plant, Linthal 2015 – PSW Limmern will be operated by Kraftwerke Linth-Limmern AG, which is owned 15% by the canton of Glarus and 85% by Axpo AG.
Über die Converteam GmbH
Converteam Group is a worldwide specialist in power conversion engineering. Building on over a century of experience, it is firmly placed at the leading edge of technology and innovation with a global reputation for excellence in the conversion of electrical energy. Converteam develops and provides solutions built around three core components: rotating machines, drives and process automation and serves specialized sectors as well as its core markets in Marine, Oil & Gas and Offshore, Energy and Industry. With about 5,000 employees, the group provides power conversion solutions worldwide. At year-end 09, the Converteam sales totalled EUR 1,150,000,000.
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Carsten Ritter, Converteam GmbH, Communications
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