Baixo Sabor power plant complex
| Baixo Sabor power plant complex | ||
|---|---|---|
| location | ||
|
||
| Coordinates | 41 ° 13 '45 " N , 7 ° 0' 44" W | |
| country |
 Portugal
|
|
| place | Torre de Moncorvo , Bragança district | |
| Waters | Sabor | |
| power plant | ||
| owner | EDP | |
| operator | EDP | |
| construction time | 2008 to 2016 | |
| Start of operation | 2015 | |
| technology | ||
| Bottleneck performance | 190 megawatts | |
| Standard work capacity | 444 million kWh / year | |
| Turbines | Francis turbines : 2 × 77 MW, 2 × 18 MW | |
| Others | ||
The Baixo Sabor power plant complex ( Portuguese Aproveitamento Hidroeléctrico do Baixo Sabor ) consists of two dams , each with an associated hydropower plant, on the Sabor River in the Bragança district , Portugal . The total installed capacity of the two power plants is 190 MW . Both power plants can be operated as pumped storage power plants.
Overall project
In addition to generating electricity, the construction of the two barrages also aimed to control the flow of the Sabor, a right tributary of the Douro . Among other things, this improves the operation of the hydropower plants located downstream on the Douro and makes them somewhat less dependent on the Spanish hydropower plants located upstream on the Douro. Originally only one barrage was planned, but for various reasons it was finally decided to split the head over two barrages.
The power plant complex is owned by Energias de Portugal (EDP) and is also operated by EDP. Construction of the two barrages began in 2008; the construction work was completed in 2016. The total cost of the project was € 625 million.
The average annual generation of the two power plants is 230 million kWh / a without pumping and 444 million kWh / a with pumping.
Baixo Sabor (Montante)
The upper barrage Baixo Sabor ( Portuguese Barragem do Baixo Sabor ) or Montante ( Portuguese Escalão de Montante ) is about 12.6 km upstream from the confluence of the Sabor in the Douro .
Barrier structure
The shut-off is an arch dam of concrete with a height of 123 m above the foundation bed . The top of the wall lies at a height of 236 m above sea level and is 505 m long. The volume of the structure is 670,000 m³. The thickness of the dam varies from 6 to 40 m.
The dam wall has both a bottom outlet and a flood relief . A maximum of 220 m³ / s can be discharged via the bottom outlet, and a maximum of 5000 m³ / s via the flood discharge.
Reservoir
With the normal storage target of 234 m (max. 235 m at high water), the reservoir extends over an area of around 28.2 km² and holds 1.095 billion m³ of water - of which a maximum of 630 million m³ can be used to generate electricity. 172 million m³ can be used for pumping operations. The minimum congestion target up to which electricity can still be generated is 227.4 (or 205.5) m.
power plant
The power plant went into operation in February 2016. It has an installed capacity of 154 MW . The power plant's two Francis turbines each have a maximum output of 77 (or 81) MW and the generators 85 MVA . The rated speed of the turbines is 214.3 / min. The nominal voltage of the generators is 15 kV .
Both turbines are designed as pump turbines . In turbine operation which is fall height 93 m and the flow rate is 85 m³ / s per turbine. In pumping mode, the height difference is 95 m and the flow rate is 70 m³ / s per turbine. Each pump has an output of 70.5 MW.
Feiticeiro (Jusante)
The lower barrage Feiticeiro ( Portuguese Barragem do Feiticeiro ) or Jusante ( Portuguese Escalão de Jusante ) is about 3 km upstream from the confluence of the Sabor in the Douro.
Barrier structure
The shut-off is a gravity dam of concrete with a height of 45 m above the foundation bed . The top of the wall is at a height of 140 m above sea level and is 315 m long. The volume of the structure is 170,000 m³.
The dam wall has both a bottom outlet and a flood relief . A maximum of 51.5 m³ / s can be discharged via the bottom outlet, and a maximum of 5000 m³ / s via the flood discharge.
Reservoir
With a normal storage target of 138 m, the reservoir extends over an area of around 1.8 km² and holds 31 million m³ of water - of which a maximum of 12 million m³ can be used to generate electricity. The minimum congestion destination up to which electricity can still be generated is 130 m.
power plant
The power plant went into operation in April 2015. It has an installed capacity of 36 MW . The power plant's two Francis turbines each have a maximum output of 18 (or 15.4) MW and the generators 20 MVA . The nominal speed of the turbines is 150 / min. The nominal voltage of the generators is 6 kV .
Both turbines are designed as pump turbines . In turbine operation which is fall height 29 m and the flow rate is 60 m³ / s per turbine. In pumping mode, the height difference is 30.7 m and the flow rate is 55 m³ / s per turbine. Each pump has an output of 18.1 MW.
See also
Web links
- barragem torre de moncorvo. YouTube , accessed August 7, 2018 (Portuguese).
Individual evidence
- ^ A b Developing the Baixo Sabor Pumped Storage Cascade in Portugal. www.hydroworld.com, accessed on August 6, 2018 (English).
- ^ Barragem do Baixo Sabor. Energias de Portugal (EDP), accessed August 6, 2018 (Portuguese).
- ↑ a b c d e f g h i Aproveitamento hidroelétrico do Baixo Sabor. (PDF) Energias de Portugal (EDP), November 9, 2012, pp. 5,7,9,12,17-18 , accessed on August 7, 2018 (Portuguese).
- ↑ a b c d Barragem do Baixo Sabor (montante). APA Barragens de Portugal, accessed August 7, 2018 (Portuguese).
- ↑ Baixo Sabor Hydroelectric Power Plant awarded in Portugal. Odebrecht , September 30, 2016, accessed on August 6, 2018 .
- ↑ a b Baixo Sabor. (PDF) Andritz , accessed on August 6, 2018 (English).
- ↑ a b Barragem do Feiticeiro. APA Barragens de Portugal, accessed August 7, 2018 (Portuguese).