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Chokepoints
Grid Storage
Peccia hydroelectric plant
17th-largest grid storage in Switzerland of 17 · top 98% worldwide (#941 of 965)
- Operator
- Maggia Hydroelectric Works
- Owner
- Alpiq Holding SA, Energie Wasser Bern (EWB), Canton of Ticino, Industrielle Werke Basel (IWB), Axpo Holding AG, BKW Energie AG, Elektrizitätswerk Der Stadt Zürich (EWZ)
- Status
- operating
- Capacity
- 54 MW
- Technology
- pumped storage
- Commissioned
- 1955
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · Switzerland · 17 ranked
- #1Lago Bianco hydroelectric plant1.0 GW
- #15Rempen hydroelectric plant66 MW
- #16Handeck III hydroelectric plant55 MW
- #17Peccia hydroelectric plant54 MW
Grid connection · within 50 km
- Nearest substation
- Lavorgo
- Its voltage
- 400 kV
- Distance
- 15 km
- Strongest line nearby
- 380 kV
- Line operator
- Swissgrid
- Substations in range
- 4
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
- Cavergno hydroelectric plant7.2 km · Power Plant · 114 MW · hydro
- Bavona hydroelectric plant8.4 km · Power Plant · 140 MW · hydro
- Robiei hydroelectric plant11 km · Power Plant · 192 MW · hydro
- Robiei hydroelectric plant11 km · Grid Storage · 192 MW
- Ritom Nuova hydroelectric plant12 km · Grid Storage · 120 MW
- Lavorgo15 km · Substation / Converter
- 380 kV line15 km · Transmission Line
- Passo Gries-Masera Gas Pipeline23 km · Pipeline
On the interactive map
Portfolio
All assets by Maggia Hydroelectric Works →All assets by Alpiq Holding SA →All assets by Energie Wasser Bern (EWB) →All assets by Canton of Ticino →All assets by Industrielle Werke Basel (IWB) →All assets by Axpo Holding AG →All assets by BKW Energie AG →All assets by Elektrizitätswerk Der Stadt Zürich (EWZ) →
Watercourse: Sambuco Reservoir
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)