en.Wedoany.com Reported - Voith has secured a contract to modernize the remaining two pump-turbines at the Torrejón pumped storage power station in Spain.
The contract was awarded by Iberdrola Generación S.A., following the modernization of Units 3 and 4 at the facility, and is part of a phased upgrade plan for the plant. The new contract covers Units 1 and 2 pump-turbines, each with a capacity of 32.5 MW in turbine mode and 43 MW in pump mode. Related work is expected to commence in 2027, with initial commissioning scheduled for 2028.
Similar to Units 3 and 4, which Voith retrofitted in 2020, the two additional units will also be designed for variable-speed operation. Voith stated that the retrofit will involve adjusting key plant components to enable more flexible operation and improve response to grid fluctuations. The company noted that variable-speed operation offers greater controllability and enhances efficiency in both pump and turbine modes compared to constant-speed operation.
Fernando Perán Montero, Project Director at Iberdrola Generación S.A., stated that the modernization allows them to better respond to evolving grid demands and more fully leverage the plant's potential; during implementation, the positive experience gained from the first phase of the project can be drawn upon, which facilitated the decision to proceed to the next step. The company indicated that this upgrade will adapt existing infrastructure to new operational requirements and support hydropower's role in providing flexibility within the energy system. Andi Schmiedel, Proposal Manager at Voith Hydro, noted that such modernization requires a deep understanding of the plant and its integration into the overall system, and they look forward to contributing proven expertise and continuing the plant's modernization together with Iberdrola.
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