## Table 4-26b: Energy Intensity of Amtrak Services

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1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Revenue passenger-miles (millions)a 3,753 4,503 4,785 6,057 6,273 6,091 6,199 5,869 5,401 5,066 5,166 5,325 5,289 5,574 5,571 5,314 5,680 5,511 5,381 5,410 5,784 6,179
Total fuel consumed (billion Btu)a,b U U U U U U U 13,409 13,530 13,651 14,545 14,872 15,591 18,061 18,171 17,101 15,934 15,242 14,607 14,371 14,584 14,850
Electric (millions of kWh)a,b U U U U U U U 309 336 363 390 416 443 470 456 518 537 551 531 549 578 582
Diesel (million gallons) U U U U U U U 74 72 71 76 76 79 95 97 84 75 69 65 62 62 63
Energy intensity (Btu/revenue passenger-mile)a,b 3,548 3,065 2,703 2,505 2,417 2,534 2,565 2,282 2,501 2,690 2,811 2,788 2,943 3,235 3,257 3,212 2,800 2,760 2,709 2,650 2,516 2,398

KEY: Btu = British thermal unit; kWh = kilowatt hour; R = revised; U = data are unavailable.

a Energy use for 1994 on is not directly comparable to earlier years. Some commuter rail energy use may have been inadvertently included in earlier years.

b Includes electric power generation and distribution losses.

NOTE

Energy intensity (Btu/revenue passenger-mile) is calculated by the source and may differ from direct calculations.

The heat equivalent factors used in Btu conversion are:

Diesel = 138,700 Btu/gallon.

Electric = 10,399 Btu/kWh. The electric conversion factor takes into account losses associated with the generation, transmission and distribution of electricity, and thus it is more than three times the value of the factor that is used in table 4-26a.

SOURCE

U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy and Oak Ridge National Laboratory Center for Transportation Analysis, Transportation Energy Databook, Edition 28 (Oak Ridge, TN: 2010), tables A.15, 9.10 and similar tables in earlier editions, available at http://www.cta.ornl.gov/data as of Dec. 28, 2010.