Bavaria not only has mountains, but also electricity: The Walchensee storage power plant is considered the cradle of industrial electricity generation in Bavaria and was completed as early as 1924. The difference in altitude between Lake Walchen and Lake Kochel is used for this purpose. With an annual generation of around 300 million kilowatt hours (300 gigawatt hours), it is still one of the largest high-pressure storage power plants in Germany. Since 1983, it has also been a protected industrial monument that fascinates children and technology enthusiasts in its visitor center.