Railpower GG20B
Railroad Quantity Road number ( s ) Notes
Bechtel Group 1 2000 Now S & S Sales and Leasing SSRX 2000
BNSF Railway 4 1210-1213 1205 Ex- Canadian Pacific Railway
Canadian Pacific Railway 6 1700-1705 Railpower contract later terminated , units sent to different owners . Amtrak 599 BNSF Railway 1205
Kansas City Southern Railway 2 1868-1869
Lubrizol Corporation 1 2006
Modoc Railroad Academy 1 2608 Now S & S Sales and Leasing SSRX 2608
Railpower Technologies 5 2401-2405 Demonstration Units
Railserve 10 414 , 1602 , 1621 , 1810 , 2402 , 2605 , 4495 , 4547 , 8049 , & 9140 Ordered with non-consistent running numbers
Union Pacific Railroad 21 Y2004 & Y2300-2319 Units classed by UP as GG20GE
United States Army 4 6000-6003
Total 55
Original Buyers
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 , which is also connected to a large battery bank where both sources combine for a total power output of . To date, there have been more than 50 GG20B electric-diesel electric hybrid switchers manufactured since their first introduction in 2004.