Grid Storage

Aguieira hydroelectric plant

Portugal

4th-largest grid storage in Portugal of 14 · top 74% worldwide (#714 of 965)

Owner
EDP SA
Status
operating
Capacity
336 MW
Technology
pumped storage
Commissioned
1981
Also listed as
A power plant — this site generates as well as stores

Comparable grid storages · Portugal · 14 ranked

All grid storages in Portugal

Grid connection · within 50 km

Nearest substation
Subestação de Paraimo
Its voltage
400 kV
Distance
28 km
Strongest line nearby
400 kV
Line operator
REN
Substations in range
2

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