Latest news

Follow the news on HYDRO Exploitation: the next meetings with our clients, the exhibitions and trade fairs in which we will participate.

Unser Magazin HYDROScope ist erschienen
Ein Blick in den Rückspiegel im Zusammenhang mit unserem 20-jährigen Jubiläum. Das Streben nach Leistung ist nicht einen Tag älter geworden und bleibt eine...
Control-command: making good choices
A number of precautions need to be taken with the acquisition of a new control-command, which is essentially the nervous system of a hydroelectric power plant.
Monitoring for sediment management
The drainage basin of the Grande-Eau hydroelectric plant is monitored for the purposes of potentially adapting its mode of operation. HYDRO’s multidisciplinary...
It took the HYDRO teams three winters to completely renew the Zmutt high-voltage substation, which supplies the largest pumping station in Grande Dixence, nearly 60 years...
R10R: they were there!
Ricardo Henriques and Michel Vianin were among those spearheading the R10R (Réhabilitation Dix Rhône) project. Launched in 2016, this vast alpine project has witnessed the...
Integrating a penstock into the landscape
Located on a steep slope, the penstock of the Farettes (Aigle) plant was disguised with landscaping measures to reduce its visual impact. A project headed...
Overhaul of the valve and alternator
Called out to an EDF plant in the French Alps, our assembly team once again demonstrated its expertise in on-site work.
Re-commissioning the control-command unit
HYDRO Exploitation updated the Fionnay power plant’s control-command unit and connected it to Swissgrid’s HV grid. Some of the staff present had already...
Virtual Tour of Central Workshops
All manner of resources and expertise under one roof! Join a virtual tour to explore our Central Workshops in Martigny.
Cryogenic cleaning: high-performance and speed
Cleaning is an essential step in the maintenance and repair of electrical machines. The use of natural and “green” cryogenic reduces the time it...
Open Day
Open Day Central Workshops Martigny. HYDRO Exploitation put the small wheels on the big ones to welcome its guests at the open day.
Swissgrid’s show of confidence
After winning the tender to replace electrical substation AIS 220kV in Fionnay, HYDRO Exploitation was given the opportunity to fulfil the most exacting demands.
Technological monitoring is a must
The offer for inspecting structures with drones is evolving and HYDRO Exploitation is fully invested in this trend through its partnerships with specialised...
The keys to success: anticipate and coordinate
Tasked with the job of cleaning up the injectors, our Central Workshops in Martigny carried out the work in record time given the current supply...
Inspection of the structures: dive into the heart of the plants ages
The inspection and monitoring of civil and mechanical engineering structures is among HYDRO Exploitation’s range of high...
Servicing Francis turbine wheels
Repairing a Francis turbine wheel requires specialist skills that can be found at HYDRO Exploitation’s Central Workshops in Martigny.
Valorisation énergétique au cœur de Moiry
Pour les Forces Motrices de la Gougra, HYDRO Exploitation a piloté l’installation d’un groupe de dotation à l’intérieur du barrage. Une...
Welding the penstock
Ensuring the lasting quality of the plants is a priority for the owners. It is in this context that HYDRO Exploitation SA often finds itself asked to carry out such work, as in...
Rapport annuel 2021: L’hydroélectricité à nouveau plébiscitée
En 2021, HYDRO Exploitation a mené de nombreux chantiers de réhabilitation et de maintenance d’ouvrages hydroélectriques,...
Laser tracker: flexibility and precision
Thanks to a high-performance tool, surveyors at HYDRO Exploitation have been providing highly accurate measurements and testing procedures for ten years. Not...
Meeting our clients
HYDRO Exploitation will be exhibiting at the Powertage in Zurich and at Aqua Pro in Bulle.
Why a supervisor is important
The commissioning of a hydroelectric power plant, regardless of its size, is a crucial and delicate step. Having some form of supervision offers an undeniable advantage...
Working for EDF in Haute-Savoie
The HYDRO Exploitation assembly team carried out maintenance work on two power plants in the French Alps at the end of last year. Quality work and adherence to...
Challenges for the polymechanics
Thanks to their new equipment, which cannot be found anywhere else in French-speaking Switzerland, the Central Workshops are taking on new challenges, from machining...
Flexibility as a reinforcement
A strategic development threatened by the movements of a geological fault, the Tine’s feeder has been revamped. HYDRO Exploitation SA proposed, studied and...
HVAC work at Bitsch
The Automation & Control team at HYDRO Exploitation made sure the automation of the heating, ventilation and air-conditioning system at the Bitsch plant was optimally replaced and...
Changement au sein de la Direction d'HYDRO Exploitation
Suite à un départ en retraite programmé, HYDRO Exploitation SA a choisi son futur nouveau responsable Administration & Finance en la...
Le premier webinaire d'HYDRO Exploitation SA
Le 1er octobre a eu lieu notre webinaire « Les Aménagements hydrauliques : Monitoring au service de l’exploitation et de l’environnement. »
Châteauneuf WWTP: regulations and command and control
This spring, we carried out the regulation and command and control of the aeration tanks at the Châteauneuf wastewater treatment plant (WWTP)....
Conformity with transmission Code 2019 (TC2019)
The transmission code (TC) is a document that defines the rules and technical requirements that must be observed by all parties playing a significant...
Thermodynamic method for energy optimisation
These past few months, our engineers have been working on efficiency measurements in three power plants using the thermodynamic method. Objective:...
Ultra-high performance fibre-reinforced concretes: an alternative to protective sheeting
Designed mainly for the construction and maintenance of civil engineering structures, UHPC is a new generation...
Poursuite de la hausse des activités en 2020
Durant l’exercice écoulé, les activités de l’entreprise de services dans le secteur hydroélectrique, HYDRO Exploitation SA, ont poursuivi la...
Measurements and electrical assessments
HYDRO exploitation is an expert in the maintenance of hydroelectric plants. To underpin its work, several diagnostic measures have been put in place so that...
Nant de Drance: advances in the commissioning
The pumped storage project at Nant de Drance entered its commissioning phase in 2018. Thanks to the specialised skills of its staff in managing and...
VITEOS SA: the analysis of transformer oils
VITEOS SA has been working together with our accredited oil testing laboratory for several years. This company, created with the merger of Services...
Bricola catchment: repair of La Maya channel
During the night of 3 October 2020, very bad weather with heavy rainfall caused damage to the La Maya channel, which holds the intake pipes for the...
ED –Belvédère: mechanical maintenance
EDF’s Unité de Production Méditerranée [Mediterranean generation unit] engaged us to carry out mechanical maintenance works in the Belvédère plant...
First artificial flooding of the river Hongrin
Artificial flooding of the river Hongrin is required annually, in response to a decision on the cleaning up of water courses in the cantons of Vaud and...
Services: high voltage (HV) substation engineering works
Engineering work to refurbish HV substations is just one of the services we offer customers who have entrusted the operation of their...
Tannuwald and Serra: refurbishment of MV substations and their internal systems (LV)
As part of the refurbishment of the Tannuwald power plant we were asked to construct a medium voltage (MV)...
Marécottes: refurbishment of the reservoir gates
In 2020, SBB scheduled a lengthy shutdown in order to reconstruct the penstock at Corbes, which forms an integral part of SBB’s Châtelard-Vernayaz...
Châtelard: quality assurance for the renewal of the Corbes high-pressure shaft.
This year (2020) major works have been carried out on the Châtelard plant, owned by CFF. In addition to the...
EES: Delivery of command and control
Following the replacement of group 3 ay Gondo, Energie Electrique du Simplon (EES) demonstrated its continuing confidence in us when it entrusted us with...
Vissoie: Replacement of the penstock
On 2 July 2018, violent storms caused nearly 40 million Swiss francs worth of damage in Val d’Anniviers. The Navizence flooded, damaging nearby infrastructure....
Central workshops: a new milling centre, unique in French-speaking Switzerland
Commissioning of our new CORREA AXIA 70 milling centre in our machining workshop, to take place soon, will open up a new...
Mechanical measurement: we offer cutting-edge capability
In order to ensure the long-term durability of hydroelectric plants, while aiming to improve their performance, HYDRO Exploitation has...
Nouveau centre d'usinage dans nos ateliers
Nous sommes fiers de vous annoncer l'acquisition d'un nouveau centre d'usinage «Box in Box» modèle CORREA AXIA 70 dans nos ateliers centraux de Martigny.
Fossau: coordination of commissioning the plant and putting it into operation.
At the end of 2018, Energie Renouvelable Vouvry (ERV) hired us to coordinate the commissioning of their new plant, the...
In-house training for Swiss dam technicians
HYDRO Exploitation organised a technical training day for Swiss dam technicians in October 2019, against the impressive backdrop of the Grande Dixence Dam....
La Peuffeyre: restoration of fish migration
At the end of 2019, we constructed two artificial sills on the Avançon d’Anzeinde river for our client Romande Energie SA in order to remove barriers...
Strengthening our transformer diagnostics services
We recently purchased two new diagnostic instruments to determine the condition of transformers and perform testing procedures. We offer these...
Expertise in Systems Services: the Primary Setting
The partial liberalisation of the electricity market has made systems services financially attractive for asset managers. This offers an opportunity...
FMA: Sublin Discharge Conduit Replacement
In 2016, FMA (Forces Motrices de l’Avançon) contracted us to replace most of the Vignasse discharge conduit, which is nearly 120 years old. This 900 mm...
Wheel Refurbishing Workshop: New Technologies and Expanded Performance
Our Wheel Refurbishing Workshop (RR) is dedicated to the repair of pump and turbine wheels abraded by water-borne sediments. The...
3D Scanning & Reverse Engineering
3D scanning is a non-contact measurement technology used for data acquisition (in a scatter plot format) for the purpose of creating a solid model. Thanks to our...
CFF: Refurbishing of the control-command system at the Vernayaz and Châtelard plants
At the end of 2018, we were asked to renew the automated systems at the Vernayaz and Châtelard power plants by...
Zmutt: renewal of the Medium Voltage (MV) Substations
During the winter, HYDRO Exploitation renewed the Medium Voltage (MV) substations of the Zmutt pumping station of Grande Dixence (alt.1972 m),...
Analysis of underwater assets: the importance of historical data
Historic data provide the foundation for analysis of sediment behaviour in reservoir water. Our 3D reservoir mapping tools and...
Swiss Federal Railways: servicing of the Eau Noire water intake
Swiss Federal Railways (CFF) asked us to service the Eau Noire water intake, an integral part of the Emosson complex. They gave us a...
EDF: rehabilitation of the Francis groups
As part of the programme to maintain and optimise its hydropower plants, Électricité de France (EDF) entrusted us in 2017 with the rehabilitation of the...
Electricité de la Lienne: replacement of the group electrical protections
Energie Sion-Région SA (ESR), which operates the hydropower facility at La Lienne, chose us to replace the old electrical...
FMV entrusts us with the operation of its new hydropower facility
In 2018, FMV SA entrusted the operation and maintenance of its new Gletsch-Oberwald hydropower facility to HYDRO Exploitation....
Centrale de Bramois : une solution contrôle-commande et supervision sur mesure
La centrale hydroélectrique de Bramois, qui turbine les eaux du bassin de Vex, a été récemment réhabilitée sur...
Le Laser Tracker, un outil au service de vos aménagements
Depuis 2011, nous travaillons avec le Laser Tracker, un outil d’une précision inégalée pour les dimensionnements d’objets...
Centrale de Gondo, alternateur du groupe 3 : mesures des pertes par calorimétrie
Le nouvel alternateur du groupe 3 de la centrale de Gondo est refroidi à l’air en circuit fermé. L'air circule...
Gebidem: une gestion des sédiments efficiente grâce à la technologie multifaisceaux
Situé au pied du glacier d’Aletsch, la retenue de Gebidem est soumise à de forts apports sédimentaires qui...
Pont de la Tine : contrôle-commande compact pour petite hydraulique HYDROTECK
En aval des deux groupes de la centrale du Pont-de-la-Tine (près d’Aigle), un groupe turbine-alternateur a été mis...
CFF Massaboden : contrôle-commande des parties hydrauliques
Le contrôle-commande des parties ainsi que les automatismes à relais des vannes de la centrale de Massaboden sont tombés en...
Forces Motrices de l’Aboyeu : remplacement du régulateur de tension et de la synchronisation
Après plus de 25 ans de bons et loyaux services, le régulateur de tension du groupe de l’Aboyeu...
Leteygeon SA : inspection de la conduite forcée
L’inspection de conduites forcées de petit diamètre est souvent un challenge notamment en raison des contraintes logistiques et sécuritaires....
Renouvellement de la centrale de Bramois
Après 100 ans de bons et loyaux services, la centrale de Bramois vient de subir une cure de jouvence. Nous avons rempli le mandat d’ingénieur principal...
HYDRO Exploitation SA
Rue de l’Industrie 10
CP 315 - CH-1951 Sion
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HYDRO Exploitation SA
Rue de l’Industrie 10 CP 750 - CH-1951 Sion +41 (0)27 328 44 11
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