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Installations in operation:
more than 40 hydroelectric facilities

Operation:
our core activities

Development:
innovative solutions

Central workshops:
a special know-how

Services:
various services

Company Film:
the mountains give us their water...

Photo
gallery
Projects
Inspection of the small diameter penstocks is often a challenge, specifically due to the logistical and safety constraints. We inspected the Leteygeon penstock (ND 660 mm), which was commissioned in 1977, at the end of 2016. We had to find solutions to be able to perform an inspection of 100% of the penstock.
The Massaboden power plant was built in 1899 to generate the power for construction of the Simplon tunnel. After completion of the tunnel in 1906, the plant was transferred to CFF and has been supplying power for rail operation since then. Two double, horizontal Francis turbines of 4.25 MVA each transform the hydraulic power into electrical energy for the 15kV rail grid.
After 25 years of good and loyal service, the excitation system of the Aboyeu generator (Horizontal 3.3 MW Pelton unit) has repeatedly broken down since 2015. FOMAB therefore consulted HYDRO Exploitation, first for the repair, then to find a long-term replacement solution.

HYDRO Exploitation - a skill centre

The company HYDRO Exploitation SA is a service provider that specialises in the operation of electrical installations and hydroelectric facilities.Under the same roof, we unite all the skills necessary for the operation, maintenance and overhaul of the facilities entrusted to us.

Based in Sion (VS), it operates facilities with an output of approximately 22% of Swiss hydroelectric capacity (25% with pumping). Together, these facilities produce nearly 16% of Switzerland’s hydroelectric power. As such, it is an important player in the sector.

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HYDRO Exploitation SA
Rue des Creusets 41
CP 750 - CH-1951 Sion
T +41 (0) 27 328 44 11
F +41 (0) 27 328 44 12
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