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Station maintenance

We are specialists in the operation and maintenance of hydropower plants.
We also maintain transmission network high voltage substations.

We ensure that the stations are maintained through:

  • regular inspections
  • visual checks
  • functional checks
  • checks on the condition of Equipment
  • maintenance work.

Furthermore, we carry out the actions and measures required for the proper functioning of the electricity network.


Our engineers and specialists carry out specific maintenance such as protection checks or oil analyses.


Swissgrid has entrusted us with the maintenance of high-voltage substations in the cantons of Valais, Vaud, Fribourg and Berne since 2015.

HYDRO Exploitation SA
Rue de l’Industrie 10
CP 750 - CH-1951 Sion
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