Electrified Bar Racks for Fish Protection at Water Intakes – Risk of Fish Injuries due to Electric Fields
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Final Report; commissioned by Federal Office for the Environment (FOEN)
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Süss G. et al.
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2026
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VAW
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Electrified intake racks are a promising technology to prevent downstream moving fish from passing through hydropower turbines, allowing them to search for an alternative passageway. From the FOEN's point of view, this report provides first important findings regarding the influence of different electrification setups (i.e. combinations of electrode placement, waveform and voltage) on the risk of injury to fish. However, a number of questions remain unanswered for a concrete application of electrified bar racks systems to increase fish protection and further clarifications are necessary.