skip to content

#5337

Railpower GG20B

🇺🇸 United States ·built by Railpower Technologies· from 2004· model of American battery-diesel-electric locomotive

Railpower GG20B, photo 1 of 1
1/1 Bryan Flint at English Wikipedia· CC BY-SA 3.0

what is it?

The Railpower GG20B Green Goat is a low-emissions diesel hybrid switcher locomotive built by Railpower Technologies Corp. It is powered by a single Caterpillar C9 six cylinder inline engine developing 300 horsepower (224 kW), which is also connected to a large battery bank where both sources combine for a total power output of 2,000 horsepower (1,490 kW). To date, there have been more than 50 GG20B diesel-electric hybrid switchers manufactured since their first introduction in 2004.

base stats

  • speed 97 km/htop speed
  • power 1.5 MWpower output
  • weight 127 tin working order
  • built 55made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

  • First built 22 years ago, in 2004.
  • 1.5 MW is about 18 family cars (~85 kW each) flat out.
  • Weighs about as much as 21 African elephants (~6 t each).

electric locomotive: Draws power from overhead wires or a third rail and pulls separate carriages.

spec sheet

built
2004
number built
55
kind
Hybrid diesel/battery
traction
battery
origin
🇺🇸 United States
builders
Railpower Technologies
top speed
97 km/h
power
1.5 MW
gauge
1,435 mm standard gauge
wheel arrangement
Bo'Bo'
weight
127 t

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q7284038, Wikipedia: Railpower GG20B (CC BY-SA 4.0).Updated 2026-10-25.

stan runge 704880d source