Railpower GG20B
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Railpower GG20B
| Railpower GG20B | |
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| A Railpower GG20B hybrid genset in the Union Pacific scheme. | |
| Power type | Diesel-electric |
| Builder | Railpower Technologies (RPT) |
| Model | GG20B |
| Build date | September 2004 – Present |
| Total produced | 55 |
| AAR wheel arr. | B-B |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Locomotive weight | 280,000 lb (127.0 t) |
| Fuel type | Diesel Fuel |
| Fuel capacity | 2,100 imp gal (9,500 l; 2,500 US gal) |
| Prime mover | Caterpillar C9 (4-Stroke I6 Diesel)[1] |
| Engine type | Four-Stroke Diesel |
| Aspiration | Turbocharger |
| Cylinders | 6 |
| Top 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 |
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 I6 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.[2]
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Contents
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Original Buyers
| Railroad | Quantity | Road numbers | Notes |
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| Bechtel Group |
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| BNSF Railway |
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| Canadian Pacific Railway |
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| Kansas City Southern Railway |
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| Lubrizol Corporation |
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| Modoc Rail Academy |
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| Railpower Technologies |
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| Railserve |
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| Union Pacific Railroad |
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| United States Army |
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| Total | 55[3] |
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.[4][5]
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.[6] To date, it is the largest land vehicle on earth to be powered exclusively by hydrogen fuel cells.[7]
See also
- List of Railpower locomotives
- List of low emissions locomotives
References
 External images |
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RailPictures.Net Photographs of the Railpower GG20B at RailPictures.Net. |
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Railroad Picture Archives Railpower GG20B photographs from Railroad Picture Archives. |
- ^ Railpower GG20B Specifications
- ^ Railpower Genset Switchers
- ^ Railpower GG20B Roster
- ^ "New locomotive unveiled". http://cjonline.com/news/2009-06-29/new_locomotive_unveiled.
- ^ "BNSF explores locomotive fuel cell". http://www.blet-bnsfmrl.org/index.asp?NewsStory=289.
- ^ "Pictures of BNSF 1205". http://www.rrpicturearchives.net/locoPicture.aspx?id=120230.
- ^ http://www.fuelcelltoday.com/news-events/news-archive/2012/february/partnership-to-produce-five-fuel-cell-mine-locomotives
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