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Asset classes
- Transmission Line80,968
- Power Plant32,429
- Substation / Converter7,614
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- Pipeline4,951
- Cement Plant3,513
- Data Centre3,283
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- Grid Storage965
- Iron Ore Mine949
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- Interconnector704
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- Carbon Capture (CCS)16
Chokepoints
Grid Storage
Herva hydroelectric plant
6th-largest grid storage in Norway of 6 · top 100% worldwide (#962 of 965)
- Operator
- Hydro Energi
- Owner
- Norsk Hydro ASA
- Status
- operating
- Capacity
- 33 MW
- Technology
- pumped storage (site also has conventional hydro)
- Commissioned
- 1962
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · Norway · 6 ranked
- #1Aurland 3 hydroelectric plant290 MW
- #4Illvatn hydroelectric plant48 MW
- #5Jukla hydroelectric plant44 MW
- #6Herva hydroelectric plant33 MW
Grid connection · within 50 km
- Nearest substation
- Fortun trafostasjon
- Its voltage
- 300 kV
- Distance
- 11 km
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
- Fortun trafostasjon11 km · Substation / Converter
- Fortun hydroelectric plant11 km · Power Plant · 270 MW · hydro
On the interactive map
Watercourse: Øvre Hervavatnet
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)