Doiras dam

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Doiras dam
Embalse Doiras 01.jpg
location
Doiras dam (Spain)
Doiras dam
Coordinates 43 ° 23 '10 "  N , 6 ° 49' 31"  W Coordinates: 43 ° 23 '10 "  N , 6 ° 49' 31"  W.
country SpainSpain Spain
place Asturias
Waters Navia
Height upstream 109  m
power plant
owner Repsol
operator Repsol
technology
Bottleneck performance 121 megawatts
Average
height of fall 		78.6 m
Standard work capacity 360 million kWh / year
Others

The Doiras Dam ( Presa de Doiras in Spanish ) is a dam with hydroelectric power plant in the municipality of Boal , Asturias , Spain . It dams the Navia to a reservoir. The dam is used to generate electricity. It was completed in 1934. The dam is owned by Repsol operated and run by Repsol.

Barrier structure

The barrier structure is a weight arched concrete wall with a height of 89 (or 94.6) m above the foundation base . The top of the wall is at a height of 110 m above sea level . The length of the top of the wall is 165 m. The volume of the dam is 231,000 m³.

The dam wall has both a bottom outlet and a flood relief . A maximum of 62 m³ / s can be discharged via the bottom outlet, and a maximum of 2393 m³ / s via the flood discharge. The design flood is 2100 m³ / s.

Reservoir

With the normal storage target of 109 m, the reservoir extends over an area of ​​around 3.47 (or 4.5) km² and holds 97 (or 115) million m³ of water.

Power plants

The two penstocks of the power plant Silvon

Repsol took over the two power plants Doiras and Silvón from Viesgo in 2018 as part of a purchase of several power plants. The total installed capacity of the two power plants is 121  MW (Doiras 43 and Silvón 78 MW). The average annual generation of the two power plants is 324 (or 360) million kWh .

Doiras power station

The installed capacity of the power plant is 30 (or 43 or 43.2) MW; it went into operation in 1933 (or 1944). Each of the three turbines in the power plant has a maximum output of 14.4 MW. The machine house is located about 300 m from the dam on the left side of the river.

Silvón power plant

The installed capacity of the power plant was originally 60 (or 63 or 66) MW; it was built from 1955 to 1958. The machine house is located around 50 m from the dam.

The two machines in the power plant went into operation in 1959 and 1964. A performance upgrade was carried out in the 2000s. The original output of the two turbines was 31.5 MW each (that of the generators at 35 MVA each  ); the maximum flow rate was 50 m³ / s per turbine. After the modernization, the Francis turbines have a maximum output of 39.3 (or 40) MW each (the generators each 42 MVA); the maximum flow rate was increased to 65 m³ / s per turbine. The fall height is 78.6 m.

See also

Web links

Commons : Doiras Dam  - Collection of images, videos and audio files

Remarks

  1. ↑ According to Moisés Llordén Miñambres the power plant in 1933 went to the first two machines in operation; the third machine followed in 1944.

Individual evidence

  1. ↑ a b c d Presa de Doiras. www.iagua.es, accessed July 28, 2020 (Spanish).
  2. ↑ a b c PRESA: DOIRAS. Sociedad Española de Presas y Embalses (SEPREM), accessed July 28, 2020 (Spanish).
  3. ↑ a b c Doiras Hydroelectric Power Plant Spain. Global Energy Observatory (GEO), accessed July 28, 2020 .
  4. ↑ a b c d Silvon Hydroelectric Power Plant Spain. GEO, accessed on July 28, 2020 .
  5. ↑ a b c Embalse Doiras. www.chcantabrico.es, accessed July 28, 2020 (Spanish).
  6. ↑ Embalse de Doiras. www.iagua.es, accessed July 28, 2020 (Spanish).
  7. ↑ Embalse: DOIRAS. www.embalses.net, accessed on July 28, 2020 (Spanish).
  8. ↑ Luz verde para que Repsol compre los activos asturianos de Viesgo. www.lavozdeasturias.es, October 8, 2018, accessed on July 28, 2020 (Spanish).
  9. ^ Repsol, segunda mayor eléctrica en Asturias tras culminar la compra de activos a Viesgo. www.lne.es, November 3, 2018, accessed July 28, 2020 (Spanish).
  10. ↑ a b c Los aprovechamientos hidroeléctricos. (PDF) www.ciccp.es, January 1, 2000, p. 60 , accessed on July 28, 2020 (Spanish).
  11. ↑ a b c d e La Industria Electrica en Asturias. (PDF) www.unioviedo.es, January 1, 1984, pp. 12-14, 16 , accessed on July 28, 2020 (Spanish).
  12. ↑ a b Red Elétrica de España. (PDF) www.chebro.es, April 14, 2015, p. 11 , accessed on July 28, 2020 (Spanish).
  13. ↑ Moisés Llordén Miñambres: De empresas y empresarios en la España contemporanea , Universidad de Oviedo, 1995, p 123, ISBN 84-7468-819-1 .
  14. ↑ a b Central Hidráulica de Silvón (1955). patrimoniuindustrial.com, accessed July 28, 2020 (Spanish).
  15. ↑ Central y salto de Silvon. www.docomomoiberico.com, accessed July 28, 2020 (Spanish).
  16. ↑ Resolución de 13 de julio de 2006, de la Secretaría General para la Prevención de la Contaminación y el Cambio Climático, por la que se adopta la decisión de no someter a evaluación de impacto ambiental el proyecto de «Modernización del aprovechamiento hidroeléctrico en eléctrico Navia, Central de Silvón (Asturias) », promovido por Enel Viesgo, SA Agencia Estatal Boletín Oficial del Estado , July 13, 2006, accessed on July 28, 2020 (Spanish).