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Railpower GG20B Diesel Hybrid Switcher Locomotive Green Goat
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 hybrid genset switchers manufactured since their first introduction in 2004.

Original Buyers

Bechtel Group

Quantity: 1
Road number: 2000

BNSF Railway

Quantity: 4
Road numbers: 1210-1213
Notes: 1205 Ex-Canadian Pacific Railway.

Canadian Pacific Railway

Quantity: 6
Road numbers: 1700-1705
Notes: Railpower contract later terminated, units sent to different owners. Amtrak 599 BNSF Railway 1205.

Kansas City Southern Railway

Quantity: 2
Road numbers: 1868-1869

Lubrizol Corporation

Quantity: 1
Road number: 2006

Modoc Rail Academy

Quantity: 1
Road number: 2608

Railpower Technologies

Quantity: 5
Road numbers: 2401-2405
Notes: Demonstration Units.


Quantity: 10
Road numbers: 414, 1602, 1621, 1810, 2402, 2605, 4495, 4547, 8049, & 9140
Notes: Ordered with non-consistent running numbers.

Union Pacific Railroad

Quantity: 21
Road numbers: Y2004, Y2300-2319
Notes: Units classed by UP as "GG20GE".

United States Army

Quantity: 4
Road numbers: 6000-6003

Total Quantity: 55

Fuel-cell Testbed
BNSF Railway and Vehicle Projects converted a GG20B to an experimental testbed, for the use of hydrogen fuel cells. The new locomotive is designated HH20B. The locomotive was publicly demonstrated for the first time on June 29, 2009, at Topeka, Kansas.

The locomotive, BNSF 1205, was built initially for the Canadian Pacific Railway, but was not delivered, due to the cancellation of the order. It was sold to BNSF in 2008, and shipped to the railroad's shops at Topeka, Kansas for conversion. The diesel generator set was removed, and the fuel cell power unit was installed in its place. Hydrogen storage is in a set of tanks installed in a heavily vented enclosure on top of the locomotive's long hood, above the batteries. To date, it is the largest land vehicle on earth to be powered exclusively by hydrogen fuel cells.

Railpower GG20B Overview
Type and origin
Power type: Diesel-electric
Builder: Railpower Technologies (RPT)
Model: GG20B
Build date: September 2004 – present
Total produced: 55
AAR wheel arrangement: B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Locomotive weight: 280,000 lb (130,000 kg)
Fuel type: Diesel fuel
Fuel capacity: 2,500 gal (2,100 imp gal) (9,500 l)
Prime mover: Caterpillar C9
Engine type: Four-Stroke six cylinder inline diesel
Aspiration: Turbocharger
Cylinders: 6

Performance figures
Maximum speed: 60 mph (97 km/h)
Power output: 300 hp (224 kW), 2,000 hp (1,490 kW) Tractive Equivalent
Tractive effort: 80,000 lbf (355.9 kN) Starting

See also:


Low-emission Locomotives


Union Pacific locomotive Y2315, one of UP's RailPower GG20B "Green Goat" locomotives operating out of Mira Loma, California.

Union Pacific locomotive Y2315, one of UP's RailPower GG20B "Green Goat" locomotives operating out of Mira Loma, California.

By Bryan Flint at the English language Wikipedia, CC BY-SA 3.0,

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