Trolleybuses, powered by electricity drawn from overhead wires, were used on the main line, Thun–Beatenbucht, connecting at Beatenbucht with the Thunersee–Beatenberg funicular and with a motorbus route covering the section to Interlaken. In 1982, the trolleybuses were replaced with conventional, diesel-powered buses. STI introduced its first night service in 1993, between Thun and Bern called the Moonliner.
Trolleybuses, powered by electricity drawn from overhead wires, were utilized on the main line, Thun–Beatenbucht, connecting at Beatenbucht with the Thunersee–Beatenberg funicular and with a motorbus route covering the section to Interlaken. In 1982, the trolleybuses were replaced with conventional, diesel-powered buses. STI introduced its first night service in 1993, between Thun and Bern called the Moonliner.