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Winning projects 2022

Alpiq, in partnership with the Association of Valais Concession-Granting Communes (ACC), announces the winners of the #prixalpiq 2022 at the Foire du Valais in Martigny. The municipalities of Visp, Naters, Brig-Glis and Lalden have won the first prize for their innovative inter-municipal governance system for the supply of drinking water in the Visp region. A jury of twelve well-known personalities from the canton of Valais awarded a "winner of hearts" prize to the film project "La Conquête de l'Eau" (The Conquest of Water) by the municipality of Ayent. 

Winner 2022

  • Project initiators: Municipalities of Visp, Naters, Brig-Glis and Lalden
  • Project name: "Regionale Wasserversorgung Südrampe" (Regional Water Supply of the Südrampe)
  • Aim: To secure regional drinking water supply for the municipalities of Visp, Naters, Brig-Glis and Lalden through the implementation of an innovative inter-municipal governance system
  • Reward: CHF 40,000
  • Contact:

More information (German)

Winner of hearts 2022

  • Project initiators: Commune of Ayent and Artémis Films Production S.A.
  • Project name: Film « La Conquête de l’Eau » (The Conquest of Water)
  • Aim: To transmit the value of water resources and the importance of preserving them to the younger generations
  • Reward: CHF 10 000
  • Contact:

More information (German)

Further projects 2022

Further projects 2022

Grimisuat irrigation network – storage and sustainable water management

  • Project initiator: Commune of Grimisuat, Drosera Ecologie Appliquée SA, Idealp SA, Geoval SA   
  • Description: Having no water supplies of its own to speak of, the commune of Grimisuat relies heavily on water from external supplies. Moreover, the Revouire lake, the main water storage facility for the irrigation of agricultural land, has lost almost 30% of its capacity. The commune has opted for a global three-point approach to the problem – water resources, storage, and supply and distribution. This approach has identified several lines of action for the commune, such as clearly defining water requirements, increasing storage capacity, reducing water losses in the supply and distribution system, reducing water requirements by enhancing the drip system.
  • Contact:


  • Project initiators: Commune of Ardon, Romain Lugon
  • Description: AQUATY is an aquaponics project, a combination of plant cultivation and fish farming. The fish are farmed in tanks while the plants are grown above ground. The fish droppings, a natural fertiliser rich in nitrogen, are fed into water vessels containing the roots of the plants. These nutrients enable the plants to grow and filter the water in the vessels before returning it to the fish tanks. This virtuous cycle makes it possible to save up to 90% of water, avoids the use of chemicals and produces water in a natural way. The water is used for both fish farming and plant cultivation – local, 100% organic production.
  • Contact:

Integrated water management at the communal level of the City of Martigny

  • Project initiators: Commune of Martigny, Bureau technique Moret & Associés 
  • Description: The project implements integrated water management at a communal level, operating as closely as possible to its natural cycle, following the watershed approach. Choosing to operate at a communal level means that various projects can be implemented efficiently and the necessary skills can be combined in a single entity. The projects are aimed at using and protecting water as well as protecting the natural environment and are based on the communal hydrographic network, composed of the Dranse, its tributaries and the lowland irrigation channels. One of the flagship projects is the revitalisation and flood protection of the Dranse; a multi-objective project designed to make the town safer, to protect the natural environment, to develop biodiversity and to create leisure and recreation areas. Another particularly innovative project is the use of lowland irrigation channels to create a remote cooling network.
  • Contact:

Regeneration of surplus drinking water for vineyard irrigation

  • Project initiators: Commune of Vétroz
  • Description: The project plans to make better use of water for irrigating the Vétroz vineyard by using the overflow of the Péteille reservoir. The drinking water sources produce a large annual volume. When production exceeds consumption, the water is currently discharged into the environment through an overflow at the Péteille reservoir, located on the hillside. In 2021, this loss amounted to more than one million m3. The aim of the project is therefore to supply the vineyard irrigation network with the excess drinking water. The project will also allow resources to be optimised by having more suitable pumping points. The energy savings are estimated to be nearly 66% of current consumption.
  • Contact:


  • Project initiators: Commune of Leytron, IG group Data solutions SA
  • Description: myAquaspy is a communication application between water network operators and consumers. Composed of several modules, it provides information, promotes the quality of drinking water to consumers and encourages more responsible consumption. The “Network Status and Reporting” module will allow consumers to find out about the status of the network, report problems to the operators and receive alerts about problems in the network. The “Water Quality” module will enable them to look at the water quality indicators at an address and compare the mineral indicators with those of bottled water. Finally, the “Sustainable Consumption” module will enable consumers to view resource consumption indicators and compare the carbon footprint of tap water with that of bottled water.
  • Contact:;

Partial sanitation of the Rumeling water catchment area

  • Project initiators: Commune of Varen, Schnyder Ingenieure VS AG 
  • Description: Some of the water of the commune of Varen is taken from the Dala River, downstream from Rumeling, via a classic lateral intake. The project plans to replace the over 100-year-old “Dufour” desander with a suitable Coanda rake. The Dala is used to irrigate the vineyards and produce power. By renovating the catchment area, the project will ensure that clear water, free of sediment and sand, flows to the vineyards. The vines will be irrigated using a drip system.
  • Contact:

Past edition

The 1st edition of the #prixalpiq brought together 18 sustainable water management projects sponsored by 21 Valais communes. The projects submitted address issues from many fields, such as agriculture, energy and tourism. They propose concrete solutions for irrigation, access to drinking water, wastewater management, water pollution reduction, energy production and automation, in order to preserve water resources and optimise their management. The judging panel, composed of 12 Valais personalities, selected the winners of this first edition.

#prixalpiq 2021 in the press

Winner 2021

  • Project initiators: Commune of Salgesch, Cordonier & Rey SA 
  • Project name: “Erneuerung Gesamt-Bewässerung Salgesch” 
  • Aim: To optimise the irrigation networks in the Salgesch commune and reduce the water requirements of local agriculture by up to 40%
  • Reward: CHF 40,000
  • Contact:,

Find out more

Find out more

The project, developed by the company Cordonier & Rey SA and sponsored by the commune of Salgesch, addresses the problem of water shortage affecting the commune. The objective of this pilot project is to reduce the water needs of local agriculture, as part of the development of the Lienne-Raspille project. The latter aims to address water shortages in 7 communes in the Sierre region (Icogne, Lens, Crans-Montana, Noble-Contrée, Sierre, Salgesch and Varen) by storing water in the Tseuzier dam.
The #prixalpiq will enable the commune of Salgesch to set up a new irrigation system that will reduce water requirements by 20 to 40%. This state-of-the-art project will replace obsolete irrigation systems with an innovative drip irrigation system coupled with resonant water treatment that measures soil moisture in real time and provides access to a coordinated irrigation schedule (Aqua4D technology).
Once the pilot phase is completed (one agricultural season), it could then be replicated in the other communes of the Lienne-Raspille project to optimise their irrigation networks. On a larger scale, it will enable communes to work together to respond to the effects of climate change.

“Winner of hearts” 2021

  • Project initiators: Commune of Val de Bagnes, Droople SA, in partnership with EPFL and ALTIS Groupe SA
  • Project name: WaSTeLeSS (Water savings and termination of Leakage through Smart Sensors network)
  • Aim: To raise awareness of water use in Val de Bagnes and reduce drinking water consumption by up to 20%
  • Reward: CHF 10,000 
  • Contact:

Find out more

Find out more

Droople SA's "WaSTeLeSS" project, developed in partnership with EPFL and ALTIS Groupe SA and supported by Innosuisse, offers an innovative service – a digital platform for the management of water-consuming equipment – that allows for more transparent and efficient management of water and its consumption. The service, based on a consumer-pays model, reduces overall cold and hot water consumption in buildings where it is used by an average of 20%. Thanks to #prixalpiq, this platform, already operational in a test environment, will be deployed at the Espace Saint-Marc in Le Châble – a space that welcomes more than 40,000 visitors per year – in partnership with the commune of Val de Bagnes. Visitors will be informed about the amount of water they use and will therefore become aware of the impact of their actions. It should be noted that user awareness can reduce water consumption by 10 to 15%. 
The project establishes a new model of collaboration with the water and energy provider and distributor ALTIS Groupe SA, in order to offer services that correspond to the needs of the final consumer according to the "consumer-pays" model.

Further projects 2021

Further projects 2021

Clean-up of the Bisse Roux

  • Project initiators: Municipality of Anniviers, PATRICK EPINEY Ingénieur Sàrl
  • Description: Refilling of the bisse in order to irrigate agricultural areas, intercept runoff, manage torrent flows, limit flood risks and provide an additional solution in case of fires.
  • Contact:

Better sustainable management of drinking water

  • Project initiators: Municipalities of Anniviers, St-Martin and Törbel, HES-SO Valais Wallis
  • Description: Survey and mapping of existing drinking water sources and development of a monitoring tool to provide an overview of water resources, analyse their use, optimise their management and identify energy potential. 
  • Contact:


  • Project initiators: Municipalities of Ausserberg and Eischoll, Stahleinbau GmbH and Imboden Elektromechanik AG
  • Description: With the new "WalliserSchiäber" system, the operation of the valves is fully automated. The time and effort required is considerably reduced thanks to a remote control system. A solar cell stores the necessary control energy in a battery. This guarantees the operation of the valve for several days, even in bad weather. For more information: www.walliserschiä
  • Contact:

Water regulation

  • Project initiators: Municipality of Zwischbergen 
  • Description: Control and automation of the water flow by means of electronic valves between the Zwischbergen and Gondo reservoirs in order to optimise water management and reduce water consumption.
  • Contact:

Preliminary study on the efficient management of water resources for agricultural use on a regional scale

  • Project initiators: Municipalities of Chalais, Chippis, Grône and Sierre, PATRICK EPINEY Ingénieur Sàrl
  • Description: Inventory of current irrigation and identification of the best irrigation equipment to allow: efficient and rational water management, optimisation of water consumption, reduction of losses and wastage and preservation of aquatic environments.
  • Contact:

Vallon de Barme – installation of a drinking water treatment system

  • Project initiators: Municipality of Champéry, Association for the protection and development of the Barme valley
  • Description: Installation of a filter (slow sand filtration - KLS® technology) and a tank to purify the water of the hamlet of Barme. The aim is to allow the many visitors to enjoy nature without harming the environment or their health.
  • Contact:


  • Project initiators: Municipality of Dorénaz, Romain Lugon
  • Description: Production of hydroelectric energy from the Rhône with the installation of a micro plant (with a 300 kW Vortex turbine) in order to provide direct energy to the municipality, while preserving the environment.
  • Contact:

Combioula thermal water

  • Project initiators: Municipality of Hérémence, mjd architectes SA
  • Description: Water from the Combioula aquifer is the key resource for the energy (district heating and turbines) and thermal (baths and treatments) operations of the entire Dixence Resort hotel and residential complex.
  • Contact:

Turbining of irrigation water from the Combe de l'A

  • Project initiators: Municipality of Liddes, Dransenergie SA
  • Description: Construction of a water intake, a penstock to the current reservoir, and then a turbine room (using the fall imposed by the place of abstraction) in order to meet the irrigation needs of the municipality.
  • Contact:

Phyto ZERO

  • Project initiators: Municipality of Riddes, RedElec Technologie SA, NVTerra SA
  • Description: Innovative electrochemical water treatment technology to improve the pre-treatment of phytosanitary residues in farmers' machinery washing stations. The objective is zero discharge of pollutants and limited use of chemical products. 
  • Contact:

UVC – a resource-saving alternative to pesticides

  • Project initiators: Municipality of Salgesch, Aquanetto Group GmbH
  • Description: Innovative vineyard treatment with a fungicide-free UV-C irradiation system to protect the water from undesirable inputs related to the use of plant protection products. System adapted to the topography of the Valais vineyards. 
  • Contact:;


  • Project initiators: Municipality of Sion, Corealis sàrl
  • Description: In order to assess the effects of climate change, development of a standardised observation network of fish flows in various Swiss rivers using innovative technology that respects the fauna and allows for significant data acquisition.
  • Contact:


  • Project initiators: Municipality of Val de Bagnes, ALTIS Groupe SA
  • Description: Construction of a mini waste water treatment plant for the hamlet of Bonatchiesse, required for compliance with the renovation of mayens. This measure supports the maintenance of the hamlet while respecting water protection requirements.
  • Contact:

Revitalisation of the lowland irrigation channels in Vétroz

  • Project initiators: Municipality of Vétroz, PATRICK EPINEY Ingénieur Sàrl
  • Description: Reopening of lowland irrigation channels to irrigate agricultural areas, to feed future water bodies, to create plantations and structures supporting biodiversity.
  • Contact:;

Drinking water and irrigation water MZS Gornerli

  • Project initiators: Municipality of Zermatt
  • Description: Assessing the possibility of using a reservoir (as part of the MZS Gornerli project – multifunctional reservoir project downstream of the Gorner glacier) to meet the future drinking water and irrigation needs of the Matter and Visp valleys.
  • Contact: