Electricity

Most motorized rail vehicles use electricity to run some of their systems, such as compressors , lights and electric transmission . Some generate electricity onboard , while others draw it from external infrastructure , such as overhead wires. Even on steam locomotives , electricity is generated onboard by a steam-powered dynamo.

Before setting a vehicle in motion, ensure that all of its electrical systems are enabled, either via breakers or valves.

Some gadgets require vehicles to have onboard electricity in order to function. While cars are generally unpowered, tenders and caboose are equipped with electricity.