Alb Valley Railway
In order to remove the smoke produced by the steam locomotives of the Alb Valley Railway from the streets of Karlsruhe, the Karlsruhe-Ettlingen section was electrified at 550 volts direct current in 1898 and a service with electric multiple units was added. The trains to Herrenalb now operated to Ettlingen using electric powered and south of Ettlingen they were steam hauled. A coal-fired power station was built in Seehof between Rüppurr and Ettlingen to supply power for the line.