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Table 1. Consumption of Energy for All Purposes ( First Use), 1998, 2002, and 2006
(trillion Btu)

  MECS Survey Years              

Iron and Steel Mills
(NAICS1331111)

1998

2002

2006

             
Total2 1,584 1,308 1,040              
  Net Electricity3 158 184 175              
  Natural Gas  494 417 359              
  Coal 680 498 360              
  Coke and Breeze 196 176 85              
Notes: 1. The North American Industry Classification System (NAICS) has replaced the Standard Industrial Classification (SIC) system. NAICS 331111 includes steel works, blast furnaces (including coke ovens), and rolling mills.
2.'Total' is the sum of all of the listed energy sources, including 'Other,' minus the shipments of energy sources produced onsite. It is the total amount of first use of energy for all (fuel and nonfuel) purposes. 'Other' includes net steam (the sum of purchases, generation from renewable resources, and net transfers), and other energy that respondents indicated was used to produce heat and power or as feedstock/raw material inputs.
3. 'Net Electricity' is obtained by summing purchases, transfers in, and generation from noncombustible renewable resources, minus quantities sold and transferred out. It does not include electricity inputs from onsite cogeneration or generation from combustible fuels because that energy has already been included as generating fuel (for example, coal).
Sources: Energy Information Administration, Manufacturing Energy Consumption Surveys 1998, 2002, and 2006.