Browse the atlas
OverWatts AtlasCountriesOwnersInsightsWireChangesSources Live map
Asset classes
- Transmission Line80,968
- Power Plant32,429
- Substation / Converter7,614
- Oil & Gas Field7,055
- Coal / Uranium Mine5,382
- Pipeline4,951
- Cement Plant3,513
- Data Centre3,283
- Iron & Steel Plant1,293
- LNG Terminal1,198
- Grid Storage965
- Iron Ore Mine949
- Chemical Plant868
- Interconnector704
- Export Terminal519
- Refinery279
- Storage / Tank Farm38
- Oil / Commodity Contract19
- Hydrogen Project18
- Carbon Capture (CCS)16
Chokepoints
Grid Storage
Alcántara II hydroelectric plant
8th-largest grid storage in Spain of 35 · top 70% worldwide (#671 of 965)
- Owner
- Iberdrola SA
- Status
- construction
- Capacity
- 440 MW
- Technology
- pumped storage
- Commissioned
- 2030
- Also listed as
- A power plant — this site generates as well as stores
Comparable grid storages · Spain · 35 ranked
- #1Conso II hydroelectric plant1.8 GW
- #6Cortes La Muela I hydroelectric plant635 MW
- #7La Baells hydroelectric plant512 MW
- #8Alcántara II hydroelectric plant440 MW
- #9Estany Gento-Sallente hydroelectric plant440 MW
- #10Aldeadàvila II hydroelectric plant433 MW
Grid connection · within 50 km
- Nearest substation
- Central Eléctrica de Alcántara
- Its voltage
- 400 kV
- Distance
- 11 km
- Strongest line nearby
- 400 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
- Alcántara II hydroelectric plant0 m · Power Plant · 440 MW · hydro
- Ceclavín solar farm5.4 km · Power Plant · 328 MW · solar
- Oriol solar farm5.5 km · Power Plant · 328 MW · solar
- 400 kV line11 km · Transmission Line
- Central Eléctrica de Alcántara11 km · Substation / Converter
- Subestación Edificio ICE11 km · Substation / Converter
- Subestación FV Tagus IV23 km · Substation / Converter
On the interactive map
Portfolio
Watercourse: Tagus River
SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)