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Lakes

Tübingen District

Upper Reservoir, Glems Pumped-Storage Power Plant

Lakes

Tübingen District

Upper Reservoir, Glems Pumped-Storage Power Plant

Highlight • Monument

Upper Reservoir, Glems Pumped-Storage Power Plant

Recommended by 243 hikers out of 276

This Highlight is in a protected area

Please check local regulations for: Geopark Schwäbische Alb

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Location: Eningen unter Achalm, Landkreis Reutlingen, Tübingen District, Baden-Württemberg, Germany

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Best Hikes to Upper Reservoir, Glems Pumped-Storage Power Plant

5.0

(8)

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1. View of Glems – View of Glems Reservoir loop from Glems

7.72km

02:28

300m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

5.0

(11)

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2. View of Glems – View of Glems Reservoir loop from Glems

7.51km

02:16

240m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

5.0

(3)

hikers

3. View of Glems Reservoir – View of Glems loop from Glems

5.91km

02:01

290m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

Tips

Tobias

February 23, 2021

Can you walk around it a nice little round and then stop off at the hiking home

Translated by Google •

Kristian

June 21, 2025

The Glems pumped-storage power plant is located on the edge of the Swabian Alb. Due to the steep slope between the artificially created upper reservoir and the powerhouse, the pumped-storage power plant can utilize a head of almost 300 m.

In Glems, two sets of machines, each consisting of a Francis turbine, a pump, and an electric motor, produce energy. The machines operate as generators in turbine mode and as motors in pump mode. The turbine output is regulated as needed via adjustable blades of the guide vanes. With a maximum output of 45 MW, the turbines require little more than six hours to fill the upper reservoir (810,000 m³), producing 560,000 kilowatt hours of electricity. Within eleven hours, with a maximum output of 34 MW per pump, the water can be pumped from the lower reservoir back to the upper reservoir via the pipeline.

The special feature of the Glems pumped-storage power plant is that it can provide control power not only in turbine mode but also in pump mode. This is made possible by a process known as hydraulic short-circuit operation. In hydraulic short-circuit operation, the pump extracts water from the lower reservoir and pumps it toward the upper reservoir. Depending on demand, more or less water is diverted to the turbine, thus making more or less power available to the grid. Given the current grid situation, this so-called control power is very valuable, as fluctuations in the grid can be compensated for immediately.

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K2000

May 26, 2021

We just walked past. I think nature is more beautiful.

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Informations

Elevation 760 m

Weather

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Sunday 9 November

9°C

2°C

100 %

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Max wind speed: 9.0 km/h

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Location: Eningen unter Achalm, Landkreis Reutlingen, Tübingen District, Baden-Württemberg, Germany

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View of Glems Reservoir

Upper Reservoir, Glems Pumped-Storage Power Plant

1. View of Glems – View of Glems Reservoir loop from Glems

2. View of Glems – View of Glems Reservoir loop from Glems

3. View of Glems Reservoir – View of Glems loop from Glems

Other Popular Places to Check Out

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