Grid Storage

Belesar III hydroelectric plant

Spain

23rd-largest grid storage in Spain of 35 · top 85% worldwide (#817 of 965)

Owner
Naturgy
Status
construction
Capacity
210 MW
Technology
pumped storage
Commissioned
2027
Also listed as
A power plant — this site generates as well as stores

Comparable grid storages · Spain · 35 ranked

All grid storages in Spain

Grid connection · within 50 km

Nearest substation
SET Carboeiro
Its voltage
400 kV
Distance
46 km
Strongest line nearby
400 kV
Line operator
Red Eléctrica de España
Substations in range
3

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

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Portfolio

Watercourse: Miño River

SOURCE: Global Energy Monitor · Global Integrated Power, March 2026 (CC BY 4.0)