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Chokepoints
Grid Storage
Odosan Pumped Storage hydroelectric plant
4th-largest grid storage in South Korea of 18 · top 53% worldwide (#509 of 965)
- Owner
- Korea Hydro & Nuclear Power (KHNP) Co Ltd
- Status
- proposed
- Capacity
- 900 MW
- Technology
- pumped storage
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · South Korea · 18 ranked
- #1Yangyang hydroelectric plant1.0 GW
- #2Yeongyang Pumped Storage hydroelectric plant1.0 GW
- #3Dumusan Pumped Storage hydroelectric plant900 MW
- #4Odosan Pumped Storage hydroelectric plant900 MW
- #5Yecheon hydroelectric plant800 MW
- #6Pocheon Pumped Storage hydroelectric plant700 MW
Grid connection · within 50 km
- Nearest substation
- 의령변전소
- Its voltage
- 345 kV
- Distance
- 31 km
- Strongest line nearby
- 765 kV
- 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
- Odosan Pumped Storage hydroelectric plant0 m · Power Plant · 900 MW · hydro
- Hapcheon hydroelectric plant8.5 km · Power Plant · 100 MW · hydro
- Dumusan Pumped Storage hydroelectric plant11 km · Power Plant · 900 MW · hydro
- Dumusan Pumped Storage hydroelectric plant11 km · Grid Storage · 900 MW
On the interactive map
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)