Gepatschspeicher is an artificial lake of Tyrol, Austria. It feeds a pumped storage hydropower plant built in 1961-1964 with 395 MW power in the town of Prutz at the Inn river.

Gepatschspeicher
Location of the lake in Austria.
Location of the lake in Austria.
Gepatschspeicher
Location of the lake in Austria.
Location of the lake in Austria.
Gepatschspeicher
LocationTyrol, Austria
Coordinates46°55′52″N 10°44′29″E / 46.93111°N 10.74139°E / 46.93111; 10.74139
Typelake

The artificial dam of about 160 metres height and 600 m length is located in the upper Kaunertal valley under the Kaunertal glacier and the water is fed to the power plant through a tunnel of 13 km length and a height difference over 800 m. Through a tunnel the lake also takes water from the neighbouring parallel valley Pitztal.

There is a tourist route along the lake.