Voith to modernize pump turbines in two Spanish hydropower plants

Published on: 

Outside view of the Valdecañas hydropower plant.[/caption]

Voith and the Spanish electricity generation company Iberdrola recently signed a contract to modernize a total of five pump turbines for the Spanish hydroelectric power plants Torrejón and Valdecañas. The company will deliver a hydraulically optimized turbine design to increase the delivery head of the pump turbines.


Voith will supply two semi-axial pump turbines, each with an output of 43 MW. The scope of supply includes the runners, guide vanes, turbine covers, shafts and bearings, as well as hydraulic and digital governors. As part of the modernization, the plant will be converted to variable-speed operation and in addition, the head will be increased.

For the hydropower plant Valdecañas, Voith will supply three Deriaz pump turbines with an output of 83 MW each. The scope of supply for this project includes the runners, parts of the control systems and the hydraulic governors. In addition, both projects contain model acceptance tests, installation supervision and full commissioning of the turbines.