Английская Википедия:Hohhot Pumped Storage Power Station
Шаблон:Infobox dam The Hohhot Pumped Storage Power Station (Шаблон:Zh), also known by Huhehaote, is located Шаблон:Convert north of Hohhot in Inner Mongolia, China. It uses the pumped-storage hydroelectric method to generate electricity. The plant has an installed capacity of Шаблон:Convert.[1] Construction began in 2005 and the first generator was commissioned on 20 November 2014.[2][3] The second generator was commissioned on 26 December 2014 and the final two were commissioned in June 2015.[4]
Design and operation
When energy demand is high, water from the upper reservoir supplies the power station with four 306 MW reversible Francis pump turbine-generators to generate electricity. After the power is generated, the water is discharged into a lower reservoir in the valley. When energy demand is low and the upper reservoir needs to be replenished, the water can be pumped back up when the pump-generators reverse into pumps. The upper reservoir is situated at an elevation of Шаблон:Convert and was formed by the construction of a Шаблон:Convert tall concrete-face rock-fill dam. It has a storage capacity of Шаблон:Convert, of which Шаблон:Convert can be used for power generation. The lower reservoir is formed by two gravity dams constructed of roller-compacted concrete. The upstream dam at a height of Шаблон:Convert and serves to trap sediment in the river which is the source of water for the power plant. The second gravity dam, located downstream, is Шаблон:Convert tall and withholds the lower reservoir with a capacity of Шаблон:Convert of which Шаблон:Convert can be used for pumped-storage. The lower reservoir is located at an altitude of Шаблон:Convert. The difference in elevation between the two reservoirs affords a hydraulic head (drop in water) of Шаблон:Convert. It is estimated that the plant will generate 2.007 billion kWh annually but consume 2.677 billion kWh pumping. Because pumping occurs during periods of low energy demand when there is a surplus and electricity is cheap, the plant is economical.[5][6][7]
See also
References
- Английская Википедия
- Hydroelectric power stations in Inner Mongolia
- Dams in China
- Pumped-storage hydroelectric power stations in China
- Concrete-face rock-fill dams
- Hohhot
- Dams completed in 2014
- 2014 establishments in China
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