Centrale hydroélectrique de Strasbourg

“Is it true that this powerhouse can light up a city the size of Strasbourg for over a year?” a young boy asked his father, pointing at the Centrale hydroélectrique de Strasbourg. His father smiled. “Not quite, son, but it does generate enough electricity to power Strasbourg for fifteen months. That’s the Centrale hydroélectrique de Strasbourg for you. Impressive, isn’t it?”. The Centrale hydroélectrique de Strasbourg is a marvel of modern engineering. Completed in 1970, it stands as a testament to human ingenuity and our ability to harness the power of nature. This powerhouse is part of a series of hydroelectric plants along the Rhine, spanning 185 kilometers between France and Germany. The Centrale hydroélectrique de Strasbourg alone generates enough power to cover a significant portion of Alsace’s electricity needs. Constructed on the Rohrschollen Island, the Centrale hydroélectrique de Strasbourg represents the culmination of a historical legacy. It was the last power plant built under the Treaty of Versailles. Remarkably, the project took only three years to complete, thanks to prior experience from similar projects in the region and EDF’s expertise. To reach the Centrale hydroélectrique de Strasbourg, visitors pass through a massive lock, large enough to handle 18,000 boats annually, including container ships and cruise liners. Inside, a guided tour reveals the inner workings of this powerhouse. The control room, a nerve center of screens and buttons, displays vital information, such as the Birse flow rate measured upstream by the Kembs dam. This data allows operators to predict water arrival times at the Centrale hydroélectrique de Strasbourg, roughly eight hours after passing Kembs. The heart of the Centrale hydroélectrique de Strasbourg lies within its six turbines. Unlike earlier Rhine plants equipped with vertical Kaplan turbines, this station features horizontal “Bulb” turbines, a design that reduces building size and enhances hydraulic performance. A rare sight awaits during maintenance operations. A turbine, measuring 5.6 meters across, can be viewed up close within its conduit. Above, the Rhine flows, a constant reminder of the natural force harnessed below. The difference in water level between the upstream and downstream sides of the plant, a 13.25-meter drop, creates the energy that drives these turbines. Beyond its power generation, the Centrale hydroélectrique de Strasbourg boasts a strong ecological commitment. The fish pass, inaugurated in 2016, addresses the challenge posed by the dam to migrating fish. This ingenious system features separate entrances for large migratory fish and local species. The water flowing through the pass is then used to generate additional electricity via a smaller 1.5 MW plant. An automated counting station and a public observation area complete this impressive feature, allowing visitors to marvel at the fish navigating this man-made waterway. The Centrale hydroélectrique de Strasbourg offers a glimpse into a world where technology and nature work together to power our lives, a reminder of the clean, stable energy that fuels our modern world.