Ferrera 1

Ferrera 1 pumped hydro overview.

Ferrera 1 is the underground pumped-storage station on the upper stage of the Kraftwerke Hinterrhein system in Graubünden, Switzerland. It generates from water stored in the Valle di Lei reservoir and can pump water back from Ferrera and Sufers, supporting seasonal storage between summer and winter.In OperationSwitzerland

At a Glance

Technical capacity

180 MW

Energy storage

Data coming soon

Operator

Data coming soon

Country

Switzerland

Location

46.534°, 9.433°

Website

Official project page

Ownership

1 record

Share	Organisation	Role	Details	Period
Unknown		Owner Operator	Kraftwerke Hinterrhein owns and operates the Ferrera pumped-storage station within its Graubünden hydroelectric system.	Current / not dated

Organisations

3 records

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

Organisation	Role	Details
	Hydroelectric owner and operatorOwner Operator	Operates the Ferrera cavern station and its connection to the Valle di Lei and Sufers reservoirs.
	Historical valve refurbishment contractorOperations Maintenance	Grimsel Hydro, part of Kraftwerke Oberhasli, refurbished Ferrera’s storage-pump and water-control valves during works in 2012–2014.
	Historical butterfly-valve manufacturerEquipment Supply	Grimsel Hydro’s project reference identifies Von Roll AG as manufacturer of Ferrera butterfly valves installed in 1961, 1962 and 1964.

Supplier registration

Contact page only

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

Supplier enquiries can be directed through the operator’s published corporate contact page. This is a general business contact route across its hydroelectric portfolio.

Kraftwerke Hinterrhein company-wide contact route, including Ferrera.

Contact page

SourceChecked 28 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	Technical capacity	180 MW	Swiss Federal Office of Energy — Ferrera 1 turbine power, distinct from 185 MW generator rating
Current	Other capacity	90 MW	Swiss Federal Office of Energy — Ferrera 1 pumping input power

Wind [m/s]

Wave [m]