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Kannagawa Hydropower Plant
| Kannagawa Hydropower Plant | |
|---|---|
 The upper Minamiaiki Dam | |
| Country | Japan |
| Location | Nagano Prefecture and Gunma Prefecture |
| Coordinates | 36°00′18″N 138°39′09″E / 36.00500°N 138.65250°E |
| Status | In partial operation |
| Opening date | Unit 1: 2005 Unit 2: 2012 Units 3-6: 2032[1][2] |
| Owner(s) | Tokyo Electric Power Company |
| Upper reservoir | |
| Creates | Minamiaiki Reservoir |
| Total capacity | 19,170,000 m3 (15,540 acre⋅ft) |
| Lower reservoir | |
| Creates | Ueno Reservoir |
| Total capacity | 18,400,000 m3 (14,900 acre⋅ft) |
| Power Station | |
| Hydraulic head | 653 m (2,142 ft) |
| Pump-generators | Francis pump turbine Operational: 2 x 470 MW Under constr.: 4 x 470 MW |
| Installed capacity | 2,820 MW (3,780,000 hp) |
The Kannagawa Hydropower Plant (神流川発電所) is an under construction pumped-storage hydroelectric power plant near Minamiaiki in Nagano Prefecture and Ueno in Gunma Prefecture, Japan. The power plant utilizes the Minamiaiki River along with an upper and lower reservoir created by two dams, the upper Minamiaiki Dam and the lower Ueno Dam. The power station in between the two dams will contain six 470 megawatts (630,000 hp) pump-generators for a total installed capacity of 2,820 megawatts (3,780,000 hp). Unit 1 commenced commercial operation in 2005 and Unit 2 in 2012.[3] When completed, the plant will have the third-largest (after Fengning Pumped Storage Power Station and Bath County Pumped Storage Station) pumped-storage power capacity in the world.[4][5]
- ^ "Operational Commencement of Unit 2, Kannagawa Hydroelectric Power Station". TEPCO. 7 June 2012. Retrieved 22 May 2021.
- ^ "Kannagawa Hydroelectric Power Station" (PDF). TEPCO. 7 June 2012. Retrieved 22 May 2021.
- ^ HydroWorld: Unit 2 online at Japan's Kannagawa pumped-storage plant
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