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- Transmission Line80,968
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Chokepoints
Grid Storage
Geumsan Pumped Storage hydroelectric plant
13th-largest grid storage in South Korea of 18 · top 65% worldwide (#627 of 965)
- Operator
- Korea South-East Power
- Status
- proposed
- Capacity
- 500 MW
- Technology
- pumped storage
- Commissioned
- 2037
- 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
- #11Samnangjin hydroelectric plant600 MW
- #12Bonghwa Pumped Storage hydroelectric plant500 MW
- #13Geumsan Pumped Storage hydroelectric plant500 MW
- #14Gokseong Pumped Storage hydroelectric plant500 MW
- #15Gurye Pumped Storage hydroelectric plant500 MW
Grid connection · within 50 km
- Nearest substation
- 신옥천변전소
- Its voltage
- 345 kV
- Distance
- 25 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
- Geumsan Pumped Storage hydroelectric plant0 m · Power Plant · 500 MW · hydro
- Muju hydroelectric plant15 km · Power Plant · 600 MW · hydro
- Muju hydroelectric plant15 km · Grid Storage · 600 MW
- Yeongdong Pumped Storage hydroelectric plant18 km · Power Plant · 500 MW · hydro
- Yeongdong Pumped Storage hydroelectric plant18 km · Grid Storage · 500 MW
On the interactive map
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)