Portas, Las reservoir

Ourense · Galicia

Miño - Sil basin Reservoirs in GaliciaHydroelectric

Province: Ourense
Basin: Miño - Sil
River: Camba
Dam: Arch · 1974

51.1%

Current level

274 hm³

Stored water

536 hm³

Total capacity

-13.0 hm³

Weekly change

-64.0 hm³

Vs. 2025

-21.4 hm³

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

Weekly summary

The Portas, Las reservoir (embalse de Portas, Las), in the Miño - Sil basin and linked to Vilariño de Conso, Ourense and Galicia, is at 51.1% of its capacity, holding 274 hm³ against a maximum capacity of 536 hm³. It is currently falling, by 13.0 hm³ this week.

Compared with 2025: below (-11.9 points). Compared with the recent historical mean: below (-4.0 points).

Its main uses include water supply and hydroelectric power.

References
Reference	Level	Difference
Previous week	53.5%	-2.4 pts
Same week 2025	63.1%	-11.9 pts
10-year mean	55.1%	-4.0 pts

Technical data

Characteristics of the dam and its recorded uses.

Characteristics

Municipality: Vilariño de Conso
River: Camba
Dam type: Arch
Year built: 1974
Surface area: 1,183 ha
Upstream: — no data
Downstream: Bao

Recorded uses

Water supply
Electricity
Boating
Swimming
Restaurants

Not recorded: irrigation, industrial, fishing, picnic.

Source: MITECO Inventory of Dams and Reservoirs.

Data: MITECO · AEMET