 Opened on 25 September 1989, the Burgas trolleybus system was originally operated by ZiU-9 trolleybuses.Those vehicles have since been replaced by Berna and Volvo trolleybuses acquired second hand from other systems, which in turn were replaced by brand new Škoda 26Tr Solaris trolleybuses in 2014.Some parts of the original system have been closed down and the overhead wires removed.