Mottec

Mottec pumped hydro overview.

Mottec is a hydroelectric generating and pumping station in the Gougra scheme in Valais. A refurbishment programme begun in 2018 renewed generating equipment, valves, controls and electrical systems, increasing generating capacity from 69 MW to 87 MW. The modernised station was inaugurated in May 2025.In OperationSwitzerland

At a Glance

Turbine nameplate capacity

102 MW

Energy storage

Data coming soon

Operator

Data coming soon

Country

Switzerland

Location

46.153°, 7.620°

Website

Official project page

Ownership

1 record

Share	Organisation	Role	Details	Period
Unknown		Owner Operator	Owner and operator of the Mottec station within the Gougra scheme.	Current / not dated

Organisations

23 records

Organisations recorded as working on this asset or its project, and their role.

Organisation	Role	Details
	Building finishing worksEpc Balance Of Plant	Alain Zufferey is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Pelton turbine refurbishmentEquipment Supply	ANDRITZ is credited with the turbine work, including replacement Pelton runners.
	Historical hydraulic drive turbine manufacturerEquipment Supply	The technical brochure identifies Charmilles hydraulic turbines in the pumping arrangement, dating from 1956.
	Fire-protection quality assuranceEngineering And Technical	BISA is credited with quality assurance for fire protection.
	65 kV switchyard and line workGrid And Transmission	FMV is credited with the 65 kV switchyard and associated lines.
	Gougra scheme owner and operatorOwner Operator	Forces Motrices de la Gougra owns and operates Mottec as part of the Gougra hydropower scheme in Valais.
	GE hydro generator replacementEquipment Supply	GE’s hydropower business, now part of GE Vernova, supplied the generators credited in the Mottec refurbishment brochure.
	Operation, safety and electrical engineeringOperations And Maintenance	The refurbishment account credits HYDRO Exploitation with operation and safety support, control systems and electrical power evacuation work.
	Building finishing worksEpc Balance Of Plant	I.B Sols is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Civil and electromechanical engineeringEngineering And Design	IM Maggia Engineering is credited with civil and electromechanical engineering for the refurbishment.
	Architectural designEngineering And Design	JBC Architectes is credited with architecture for the refurbishment.
	Power transformer supplySubstation Electrical	Kolektor Etra is credited with power transformers for the refurbishment.
	Refrigeration installationsEquipment Supply	Lauber IWISA is credited with refrigeration installations.
	Building finishing worksEpc Balance Of Plant	LOU Carrelage is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Building finishing worksEpc Balance Of Plant	Lourejoints is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Civil constructionEpc Balance Of Plant	Melly Constructions is credited with civil construction work.
	Environmental and hazardous-material studiesConsenting Environmental	Patrick Epiney Ingénieurs is credited with environmental studies, including hazardous-material diagnostics.
	Building finishing worksEpc Balance Of Plant	Renotec is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Metal constructionEpc Balance Of Plant	Revaz is credited with metal construction work.
	Historical storage-pump manufacturerEquipment Supply	The technical brochure identifies Sulzer as manufacturer of the storage pumps dating from 1956. The refurbishment did not replace these pumps.
	Building finishing worksEpc Balance Of Plant	Techmétal is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Building finishing worksEpc Balance Of Plant	Vogel is listed among the companies responsible for building finishing works in the Mottec refurbishment brochure.
	Spherical valve supplyEquipment Supply	Vortex Hydra is credited with spherical valves.

Supplier registration

Contact page only

How suppliers get onto this project's radar: its standing register, supplier portal or contact route.

Businesses can contact the hydropower services operator through its corporate contact page. Published contact channels provide a general route for enquiries about services and collaboration.

Portfolio-wide contact route for HYDRO Exploitation’s hydropower services.

Contact page

SourceChecked 29 Oct 2026

Capacity history

Recorded project capacity figures. Future-dated changes are shown but are not used as current capacity.

Effective	Capacity type	Capacity	Source
Current	Turbine nameplate capacity	102 MW	Mottec technical brochure – three turbines rated at 34 MW mechanical power each

Wind [m/s]

Wave [m]