Jixi Pumped Storage Power Station
The Jixi Pumped Storage Power Station (Chinese: 绩溪抽水蓄能电站) is a pumped-storage hydroelectric power station currently under construction in Jixi County, Anhui Province, China. Studies were carried out in 2008 and construction began in December 2010. It is expected to last 6 years.[2][3] As of April 2017 the dam is completed.[4] All 6 turbines are expected to be commissionned between May 2019 ang August 2020.[5]
| Jixi Pumped Storage Power Station | |
|---|---|
| Official name | 绩溪抽水蓄能电站 |
| Country | China |
| Location | Jixi County |
| Coordinates | 30°11′07″N 118°46′57″E |
| Status | Under construction |
| Construction began | 2010 |
| Opening date | 2020 (est.) |
| Construction cost | CNY¥8.2 billion (US$ 1.2 billion)[1] |
| Upper reservoir | |
| Total capacity | 10,598,000 m3 (8,592 acre⋅ft) |
| Lower reservoir | |
| Total capacity | 10,944,000 m3 (8,872 acre⋅ft) |
| Power Station | |
| Turbines | 6 x 300 MW Francis pump turbines |
| Installed capacity | 1,800 MW |
The pumped-storage power plant will operate by using two reservoirs to generate power, an upper and a lower. During periods of high energy demand, water is released from the upper reservoir and sent to the power station to generate electricity. After power generation, the water is discharged into the lower reservoir. When energy demand is low, such as at night, water is pumped back up to the upper reservoir as stored energy. The process repeats as needed and the pump-generators serve the dual-role of both pumping and generating electricity. Forming the lower reservoir will be a 63.9 m (210 ft) tall and 480 m (1,575 ft) long concrete-face rock-fill dam (CFRD). Its storage capacity will be 10,944,000 m3 (8,872 acre⋅ft) of which 8,670,000 m3 (7,029 acre⋅ft) is active (or 'usable') for pumping. The upper reservoir will be formed by a CFRD as well, this one will be 114.2 m (375 ft) tall and 330 m (1,083 ft) long, withholding a 10,598,000 m3 (8,592 acre⋅ft) man-made lake. The normal elevation of the lower reservoir will be 339.3 m (1,113 ft) and the upper 961 m (3,153 ft). This difference in elevation affords a rated hydraulic head of 599 m (1,965 ft). The power station will be located underground near the bank of the lower reservoir and contain six 300 MW Francis pump turbine-generators.[6]
References
- "Jixi pumped-storage hydro plant begins operation in China". HydroWorld. Retrieved 20 January 2012.
- "Jixi 7 billion to build pumped storage power station" (in Chinese). Jixirj. Archived from the original on 26 January 2013. Retrieved 20 January 2012.
- "National Development and Reform Commission approved the Jixi pumped-storage power plant project to carry out preparatory work" (in Chinese). Bureau of Energy. Retrieved 20 January 2012.
- "安徽省最大抽水蓄能电站下水库大坝填筑完成 - 北极星电力新闻网". news.bjx.com.cn. Retrieved 2017-07-23.
- "The 10 Largest Pumped-Storage Hydropower Plants in the World". www.enr.com. Retrieved 2020-04-08.
- "About Anhui Jixi pumped storage power station" (in Chinese). Electric Technology Co., Ltd. Archived from the original on 25 December 2014. Retrieved 20 January 2012.