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°WCoordinates: 41°41′30.6″N 8°5′28.5″W / 41.691833°N 8.091250°W
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 m^3 (3,300,000 cu ft)
Spillway type	Over the dam
Spillway capacity	1,700 m^3/s (1.4 acre·ft/s)
Reservoir
Total capacity	65,000,000 m^3 (53,000 acre·ft)
Active capacity	56,300,000 m^3 (45,600 acre·ft)
Surface area	2.42 km^2 (0.93 sq mi)
Normal elevation	280 m (920 ft)
Power station
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

• List of power stations in Portugal
• List of dams and reservoirs in Portugal

External links

• "Hydroelectric Plants in Portugal". Power Plants Around the World. Retrieved 2015-02-24.

References

1. "SALAMONDE DAM". APA Barragens de Portugal. Retrieved 2015-02-25.
2. "DECLARAÇÃO AMBIENTAL 2012" (PDF) (in Portuguese). Energias de Portugal. p. 24 (22). Retrieved 2015-02-25.
3. "Salamonde Informação Técnica" (in Portuguese). Energias de Portugal. Retrieved 2015-02-25.
4. "Hidroelectricidade em Portugal memória e desafio" (PDF) (in Portuguese). Rede Eléctrica Nacional, S.A. p. 29 (27). Retrieved 2015-02-25.
5. "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.