Shin-Takasegawa Pumped Storage Station
| Shin-Takasegawa Pumped Storage Station | |
|---|---|
The Takase Dam | |
Interactive map of Shin-Takasegawa Pumped Storage Station | |
| Country | Japan |
| Location | Ōmachi, Nagano Prefecture |
| Coordinates | 36°28′26″N 137°41′23″E / 36.47389°N 137.68972°E |
| Status | Operational |
| Construction began | 1971 |
| Opening date | 1980 |
| Owner | TEPCO |
| Upper reservoir | |
| Creates | Takase Reservoir |
| Total capacity | 76,200,000 m3 (61,800 acre⋅ft) |
| Lower reservoir | |
| Creates | Nankura Reservoir |
| Total capacity | 32,500,000 m3 (26,300 acre⋅ft) |
| Power Station | |
| Hydraulic head | 229 m (751 ft) (net) |
| Turbines | 4 x 320 MW (430,000 hp) reversible Francis-type |
| Installed capacity | 1,280 MW (1,720,000 hp) |
The Shin-Takasegawa Pumped Storage Station (新高瀬川発電所) uses the Takase River (a tributary of the Shinano River) to operate a pumped storage hydroelectric scheme about 12 kilometres (7.5 mi) west of Ōmachi in Nagano Prefecture, Japan. Part of the system is within Chūbu-Sangaku National Park.
Construction on the complex began in 1971, concluded in 1978 and the power station was commissioned in 1980. The power plant has a 1,280 megawatts (1,720,000 hp) installed capacity and its upper reservoir is created by the Takase Dam, a rock-fill dam — which at 176 metres (577 ft) in height is the tallest of its type in Japan. It is also the second tallest dam in Japan, next to Kurobe Dam.