Hochwasserspeicher Liebenstein, Water reservoir in Plößberg, Germany.

The Liebensteinspeicher is an artificial reservoir on the Tirschenreuther Waldnaab, 20 km northeast of Weiden, between Liebenstein (part of Plößberg) and Tirschenreuth. Its dam is an earth-fill embankment built from 1965 to 1968. A small hydroelectric plant with a 132 kW Francis turbine generates about 0.55 million kWh per year.

Built from 1965 to 1968 as a flood retention basin on the Tirschenreuther Waldnaab, the Liebensteinspeicher protects the Tirschenreuth district. The earth-fill dam was modernised twice in the 1990s. Its reservoir also raises low-water levels and feeds a small hydroelectric plant.

The reservoir's banks and surroundings are habitat for rare animal and plant species. Since camping was banned some years ago, visitors use the lake for rowing, paddling, fishing and hiking rather than overnight stays. The name Liebenstein comes from the nearby village of Liebenstein, part of the municipality of Plößberg.

The site is best accessed from the higher paths around the basin, where you can see the dam and water surface clearly. Keep in mind this is active infrastructure, so some areas may be restricted or not open to walking.

The small hydroelectric plant uses a Francis turbine rated at 132 kilowatts, producing about 0.55 million kWh per year. The reservoir also raises low-water levels downstream, so the same basin serves flood protection, water regulation and power generation.