Too often we visit technology museums - so when the tech story is over. Now travelers can visit a new energy technology right from the start.
According to German start-up Energyminer, this is the world's first swarm power plant. It is expected to generate approximately two million kilowatt-hours of electricity per year. Currently, three river turbines - known as “Energyfish” - are already operating in the Rhine near St. Goar. Over the course of the year, additional turbines will be added gradually, until a total of 124 are in place in the Rhine; enough for around 500 households. Weighing about 180 kilograms, the machines are anchored to the riverbed, and only a small portion of them is visible from the surface.
I guess the tourist office of St. Goar will offer some more information in the future near the river Rhine with some explanations.
More details in this article in German language:
https://www.swr.de/swraktuell/rheinland-pfalz/koblenz/schwarmkraftwerk-im-rhein-engeryminer-st-goar-100.html
I recommend DeepL for translation.