Grid Storage

Rempen hydroelectric plant

Switzerland

15th-largest grid storage in Switzerland of 17 · top 97% worldwide (#932 of 965)

Open on the map →

Operator: AG Kraftwerke Wägital
Owner: Elektrizitätswerk Der Stadt Zürich (EWZ), Axpo Power AG
Status: operating
Capacity: 66 MW
Technology: pumped storage
Commissioned: 1926
Also listed as: A power plant — this site generates as well as stores

Comparable grid storages · Switzerland · 17 ranked

All grid storages in Switzerland →

Grid connection · within 50 km

Nearest substation: Unterwerk Tierfed
Its voltage: 380 kV
Distance: 29 km
Strongest line nearby: 380 kV
Substations in range: 5

Mapped grid infrastructure from OpenStreetMap, whose coverage is excellent in some regions and sparse in others. Nothing shown here means nothing is mappednearby — not that the site is unconnected. Lines are matched on a segment’s midpoint, so a corridor passing directly overhead can be missed; this under-reports rather than invents.

Co-located infrastructure · within 25 km

380 kV line4.3 km · Transmission Line
Etzelwerk Altendorf hydroelectric plant8.9 km · Power Plant · 135 MW · hydro
Etzelwerk Altendorf hydroelectric plant8.9 km · Grid Storage · 135 MW
Vorableitung17 km · Transmission Line
Schwanden-Tierfehd23 km · Transmission Line

On the interactive map

Open the interactive map →

Portfolio

All assets by AG Kraftwerke Wägital →All assets by Elektrizitätswerk Der Stadt Zürich (EWZ) →All assets by Axpo Power AG →

SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)