Shunting locomotives generally consist of diesel engines used for various types of work. They can be found at freight sidings, sidings at industrial plants, shunting yards or rolling stock maintenance facilities (so-called depots).

Most important benefits:

• reduced emissions of NO_x and solid particles (by approx. 30% to 60%);
• reduced emissions of CO₂ and HC (by approx. 30% to 60%);
• reduced noise and vibrations;
• reduced fuel costs (by approx. 30% to 60%);
• reduced motor oil costs;
• savings resulting from the locomotive being operated by one person