It opened on February 24, 1950,[1] as the Bergen Tramway was gradually closed and some of the tram lines were converted to trolleybus.

In 1942 Bergen Sporvei started converting some of its gasoline buses to trolleybuses, but in 1944 the German occupation forces took the completed bus and moved it to Lübeck, and the company stopped rebuilding.

The fuel shortage during World War II made trolleybuses extremely popular, since Norway had an abundance of cheap electricity.

[2] Plans related to the new Bergen Light Rail system involve expanding the trolleybus line from Møhlenpris to Oasen and from Mulen to Paradis.

[3] In 2019, ten trolleybusses, specifically Solaris Trollino 18 IV were ordered for NOK 80 million, each with 55 kWh battery.