Kjofossen Power Station - Credit: Wikimedia Commons
Kjofossen Power Station is a hydroelectric power plant at Vestland built during World War II. Part of its power is used as railway traction current, i.e. single-phase electric power at 16 2/3 hertz, fed directly into the overhead wire of the railway to Bergen. The only other power station in Norway to produce traction current is Hakavik Power Station. Read more on Wikipedia
Source: en.wikipedia.org