First
Use "Other" Energy Sources: Purchased Steam/Hot Water Use Soars
and Biomass Use is 20 Percent Lower in 1998 Compared to 1994
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Affects of no growth in onsite electricity generation by manufacturers can be seen in the growth of purchased steam and reduced use of biomass. Outsourced onsite generation of electricity and steam--a growing trend-- is considered "purchased." As manufacturing onsite generation fell, steam purchases doubled from 243 billion Btu in 1994 and 490 billion Btu in 1998--MECS does not collect steam generated onsite. As the amount of purchased steam grew, the share purchased from all nonutilities did not grow, 60 percent in 1994 and 57 percent in 1998. The food and paper industries did purchase more nonutility steam--possibly from the outsourced site generator. The reader needs to remember that the 1994 data are not matched perfectly with the 1998 because of the reclassification from the SIC to the NAICS. Most agricultural wastes are used by the food industry--specifically by sugar cane mills. Assuming that most of the wastes are used for onsite electricity generation--mostly cogeneration, in 1998, sugar cane mills used significantly less agricultural wastes to generate electricity than in 1994. Cogeneration in the food industry was 32 percent lower in 1998 than in 1994--however, some of this decline may be to the reclassification of malt beverages out of the food industry. Some of the drop in the energy source "wood harvested from trees and the wood-related refuse" could be due to the affects of the logging industry's absence from the wood industry classification under NAICS. The logging industry is a user of this energy source. In 1994, the paper industry used 150 trillion Btu of "wood harvested from trees"--only 24 trillion Btu in 1998. Even though this was a significant drop, the 5 percent reduction in onsite generation was not found to be significant (NS). See Onsite Electricity Generation. |
For specific questions about "First Use Other Energy Sources," please contact:
Stephanie
J. Battles
stephanie.battles@eia.doe.gov
Phone:
202-586-7237
Fax:
202-586-0018
For specific questions about the Manufacturing Energy Consumption Survey, please contact:
Robert Adler, Survey Manager
robert.adler@eia.doe.gov
Phone: 202-586-1134
Fax: 202-586-0018
Release Date: July 31, 2002