| Tannensee | |
|---|---|
 | |
Tannensee Tannensee Tannensee Tannensee Tannensee | |
| Location | Kerns, Obwalden |
| Coordinates | 46°46′25″N 8°18′22″E / 46.77361°N 8.30611°E / 46.77361; 8.30611 |
| Type | reservoir |
| Tannenbach | |
| Tannenbach | |
| 1.3 km2 (0.50 sq mi) | |
| Basin countries | Switzerland |
Surface area | 33 ha (82 acres) |
Water volume | 3.8 million cubic metres (3,100 acre⋅ft) |
Surface elevation | 1,976 m (6,483 ft) |
| Location | |
 Interactive map of Tannensee | |
Tannensee is a reservoir in Obwalden, Switzerland. In 1958, Tannenbach and few other creeks were dammed with an earth-fill dam. The reservoir has a volume of 3.8 mio m³ and its surface area is 33 ha (82 acres). The reservoir is used to generate electricity at Kraftwerk Hugschwendi in Kerns.