08/06/2021
Iberdrola chooses Indar to modernize two units at 132-MW Torrejon pumped storage
By Hydro Review Content Directors -6.4.2021
Torrejon pumped storage
Indar announces it has been awarded a contract by Iberdrola to modernize two generator units at the 132-MW Torrejon pumped storage hydroelectric plant. As part of the modernization, the plant will be converted to full power variable-speed operation.
Indar’s contract comprises two 45-MVA full power variable speed vertical motor-generators, including two INDARGRID excitation systems with rotor monitoring. For the same project, Ingeteam is delivering the two corresponding 50-MVA, 6.6-kV full power converters through its dedicated Frequency Converter Business Unit.
By modernizing and converting these units to full power variable speed concept, INDAR is making an important contribution to more flexible use of hydropower plants and to increase the stability of electric power networks in Europe due to its high level of operating flexibility. Variable speed units offer several advantages for both pumping and generating modes, such as:
Possibility of active power control in pumping mode
Efficiency increase in generating mode especially under partial load
Wide range of operation
Additional energy generated/stored compared to a conventional fixed speed alternative
Network stability improvement by reactive power control, even with all the groups stopped, the full power converter can provide the necessary reactive power to the network
Network stability improvement by instantaneous active power injection in the grid (flywheel effect)
Iberdrola has a total installed electric generating capacity of 52,084 MW, in Spain (26,627 MW), Mexico (9,532 MW), the U.S. (8,361 MW), Brazil (4,079 MW), the UK (2,520 MW) and other European countries (965 MW). The company’s renewable technologies include offshore and onshore wind, hydroelectric power, solar photovoltaic and combined cycle. Details can be viewed on Hydroreview with Photograph and more >>>>