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Reservoir in the Alps – level measurement with autonomous power supply


Pumped storage hydropower facilities convert energy surpluses in off-Peak periods into valuable energy for times of peak load. For this purpose they pump water back into a reservoir at a higher elevation and use it again at a later time to produce electricity. The pumped storage system thus balances supply and demand in the power network in an environmentally friendly and economical way. In a current project, a natural alpine lake is being expanded and converted into a reservoir. The construction site, located at nearly 2,500 meters above sea level, has to be protected against flooding. To accomplish this, the level of the lake is constantly monitored during filling. The level rises sharply especially in the spring, when the snow melts. But how do you monitor the level of a reservoir in the middle of the Alps, where there is no electricity and no direct road access?

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