In this episode of DW’s Planet A, Lukas Lottersberger explores a bold rethink of hydropower. The report lays out the downsides of giant dams — the flood zones, environmental disruption, community displacement. It asks, what if we could shrink hydropower without shrinking its impact? The video takes viewers on a tour of three innovative technologies—a swirling vortex turbine, sleek river-current “power buoys,” and osmotic-pressure systems—that promise low-footprint, low-emissions energy. Along the way, it touches on real-world tests, surprising punch-cards for wildlife, and glimpses into how these gadgets could slot into rivers and canals without reshaping landscapes.
 

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