Woodwaste biomass cofiring with high sulphur coal for power generation in Kentucky: A case study

James M. Ringe, Donald H. Graves, James E. Reeb

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The largest percentage of electricity in Kentucky and Tennessee is produced using coal-powered generators. High sulphur contents in coal and stricter clean air standards, however, make this an increasingly expensive operation. Cofiring with up to 5 percent wood biomass has been shown to decrease the emissions of marginally unacceptable coal supplies to an acceptable level. The objective of this study was to determine if sufficient woodwaste biomass existed in Kentucky to feasibly cofire Tennessee Valley Authority power plants. Results indicate that sufficient biomass does exist for this purpose, although the majority of the resource is logging slash. Additionally, cofiring can be accomplished economically. The practicality of cofiring is limited, however, by a utility's needs for large, reliable fuel supplies and relatively long-term price contracts from a very fragmented wood industry. Potential environmental concerns over the use of logging slash may also limit the practicality of cofiring on a large scale.

Original languageEnglish
Pages (from-to)88-93
Number of pages6
JournalForest Products Journal
Issue number4
StatePublished - Apr 1998

ASJC Scopus subject areas

  • Forestry
  • General Materials Science
  • Plant Science


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