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    IP HYDROELECTRIC POWER PLANT

    A reversible hydro plant with a capacity of 88.85 megawatts (MW) located in the heart of the Pyrenees in Aragon.

    A hydro plant with a capacity of 88.85 megawatts (MW) in the form of a reversible pumping station with three sets consisting of an alternator, a turbine and a pump. It can supply clean energy to more than 16,000 homes. It has two reservoirs to complete the pump-turbine circuit. The higher reservoir is a lake (the Lake of Ip) whose level has been raised through infilling with loose materials to a maximum height above foundations of 28m, a crown length of 235m and a spillway capacity of 87 m3/s. It has a capacity of 5.3 hm3 (Lake of Ip). The lower reservoir (the Canfranc counter-reservoir) has a capacity of 0.43 hm3. It has a 32.2-meter-high buttressed-wall dam located on the river Aragon.

     

    GENERAL INFORMATION

    Location
    Canfranc Estación. Huesca. Spain.
    Capacity
    88.85MW (turbined), 99 MW (pumping).
    River basin
    Aragón.
    Type
    Pumping station.
    Start-up
    1969.
    Flow through the turbine
    9.9 m3/s.
    Type of turbine
    Vertical Pelton (3).
    Pump
    Four stage (3).
    Net water fall
    935 m.
    Owner
    ACCIONA Energy.

    Key Points

    • The plant pumps water up to the upper reservoir when there is a surplus of energy, storing it to generate power when needed. This helps to achieve a higher integration of renewable energies into the system.
    • A fall of almost 1,000 meters, the biggest in Europe when it was opened.
    • The upper reservoir has a high-mountain dam (2,119 meters above sea level).
    • The power station building was designed by the architect Miguel Fisac.

    MORE INFO: ACCIONA EXPERIENCE. MEETING THE CHALLENGE OF STORING RENEWABLE ENERGY

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