Trolley boat

It takes its energy like a tram or trolleybus from one or two overhead wires respectively.

It had two electric motors with 19 kW (25 hp) each, which drove the propellers.

[1] On a 21⁄2 miles (4 km) long section of the Brussels–Charleroi Canal operated from 1899 a propeller driven trolley boat as a tug.

A 33⁄4 miles (6 km) long overhead cable was installed at the 2 miles (3,3 km) long canal tunnel of the Canal de Bourgogne in the French Canton de Pouilly-en-Auxois.

[1] In 2012 Diversified Marine in Portland, Oregon built the new Buena Vista Ferry, which obtains its energy through an overhead cable, to connect Marion County and Polk County over the 220 meter wide Willamette River in Oregon.

Teltow , a trolley boat on the Teltow Canal
Demonstration of a trolley boat developed by Frank W. Hawley on the Erie Canal