Salamonde Dam

Salamonde Dam
Location of Salamonde Dam in Portugal
Official name Barragem de Salamonde
Location municipality Vieira do Minho, Braga District, Portugal
Coordinates 41°41′30.6″N 8°5′28.5″W / 41.691833°N 8.091250°W / 41.691833; -8.091250Coordinates: 41°41′30.6″N 8°5′28.5″W / 41.691833°N 8.091250°W / 41.691833; -8.091250
Purpose Power
Status Operational
Opening date 1953
Owner(s) Companhia Portuguesa de Produção de Electricidade
Dam and spillways
Type of dam Concrete arch dam
Impounds Cávado River
Height (foundation) 75 m (246 ft)
Length 284 m (932 ft)
Elevation at crest 281 m (922 ft)
Dam volume 93,000 m3 (3,300,000 cu ft)
Spillway type Over the dam
Spillway capacity 1,700 m3/s (1.4 acre·ft/s)
Reservoir
Total capacity 65,000,000 m3 (53,000 acre·ft)
Active capacity 56,300,000 m3 (45,600 acre·ft)
Surface area 2.42 km2 (0.93 sq mi)
Normal elevation 280 m (920 ft)
Operator(s) Energias de Portugal
Commission date Salamonde I: 1953
Salamonde II: 2015
Hydraulic head Salamonde I: 125 m (410 ft) (max)
Salamonde II: ?
Turbines Salamonde I: 2 x 21.8 MW Francis-type
Salamonde II: 1 x 207 MW Francis-type
Installed capacity Salamonde I: 42 MW
Salamonde II: 207 MW
Annual generation Salamonde I: 231.2 GWh
Salamonde II: 386 GWh

Salamonde Dam (Portuguese: Barragem de Salamonde) is a concrete arch dam on the Cávado River, where the river forms the border line between the districts of Braga and Vila Real. It is located in the municipality Vieira do Minho, in Braga District, Portugal.

The dam was completed in 1953. It is owned by Companhia Portuguesa de Produção de Electricidade (CPPE). The dam was designed by Coyne et Bellier.[1]

Dam

Salamonde Dam is a 75 m tall (height above foundation) and 284 m long arch dam with a crest altitude of 281 m. The volume of the dam is 93,000 m³. The dam features a spillway with 4 gates over the dam (maximum discharge 1,700 m³/s) and one bottom outlet (maximum discharge 130 m³/s).[1]

Reservoir

At full reservoir level of 280 m (maximum flood level of 280.5 m) the reservoir of the dam has a surface area of 2.42 (2.36)[2] km² and a total capacity of 65 mio. m³; its active capacity is 56.3 (55[3] or 57[4]) mio. m³.[1] With the 55 mio. m³ water 26.9 GWh can be produced.[3]

Power plant

Salamonde I

The hydroelectric power plant went operational in 1953. It is operated by EDP. The plant has a nameplate capacity of 42[1][2][3][4][5] MW. Its average annual generation is 231.2[3] (175,[4] 232[1][5] or 244[2]) GWh.

The power station contains 2 Francis turbine-generators with 21.8 MW (25 MVA) each in an underground powerhouse. The turbine rotation is 428 rpm. The minimum hydraulic head is 78 m, the maximum 125 m. Maximum flow per turbine is 22 m³/s.[3] The turbines and generators were provided by Voith.[5]

Salamonde 2

In 2011 Alstom has been awarded a contract by EDP to install a 207 MW Francis reversible pump turbine and a 244 MVA motor-generator in a new pumped-storage power plant.[6] The new power plant is expected to go operational in August 2015. Its average annual generation is estimated to be 386 GWh.[7]

See also

References

  1. 1 2 3 4 5 "SALAMONDE DAM". APA Barragens de Portugal. Retrieved 2015-02-25.
  2. 1 2 3 "DECLARAÇÃO AMBIENTAL 2012" (PDF) (in Portuguese). Energias de Portugal. p. 24 (22). Retrieved 2015-02-25.
  3. 1 2 3 4 5 "Salamonde Informação Técnica" (in Portuguese). Energias de Portugal. Retrieved 2015-02-25.
  4. 1 2 3 "Hidroelectricidade em Portugal memória e desafio" (PDF) (in Portuguese). Rede Eléctrica Nacional, S.A. p. 29 (27). Retrieved 2015-02-25.
  5. 1 2 3 "Salamonde Hydroelectric Power Plant Portugal". Global Energy Observatory. Retrieved 2015-02-25.
  6. ↑ "Alstom to supply a 207 MW turbine to Salamonde pumped storage plant in Portugal". Power Engineering. 2011-06-15. Retrieved 2015-02-25.
  7. ↑ "Salamonde II Informação Técnica" (in Portuguese). Energias de Portugal. Retrieved 2015-02-25.
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