The second hydropower unit of La Yesca HPP is put into operation

The second 375 MW hydropower unit has been put into operation at La Yesca HPP in Mexico. Like for the first unit, the equipment for the second one has been produced and supplied by Power Machines OJSC. 

The first hydropower unit was put into operation in October this year. The warranty period for the equipment supplied is 24 months from the beginning of its operation. 

In the project to build La Yesca HPP Power Machines act as a subcontractor of the Mexican construction company CPH – a subsidiary of the largest construction company ICA, which won the tender held by the Mexican Federal Electricity Commission in 2007. 

In accordance with the terms of a contract concluded in the same year Power Machines supplied two hydroturbines each having a capacity of 375 MW, two hydrogenerators as well as auxiliary equipment for the new hydropower plant and performed turnkey design and installation of the turbine hall’s electromechanical equipment. 

Power Machines completed the manufacture and supply of the main equipment for the two hydropower units in 2010. 

La Yesca HPP is a unique hydraulic structure having the world’s highest concrete-faced earthfill dam. Its height reaches 220 meters. The plant's total rated capacity after the startup of the second hydropower unit will amount to 750 MW. The new plant forms part of the hydraulic power system on the Río Grande de Santiago River at the border of Jalisco and Nayarit states. The main power equipment for the two previously built plants of this power system – 975 MW Aguamilpa HPP and 750 MW El Cajon HPP – was also supplied by Power Machines.