Integrated techno-economic and environmental assessments of sixty scenarios for co-firing biomass with coal and natural gas

Ezinwa Agbor, Adetoyese Olajire Oyedun, Xiaolei Zhang, Amit Kumar

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Displacement of fossil fuel-based power through biomass co-firing could reduce the greenhouse gas (GHG) emissions from fossil fuels. In this study, data-intensive techno-economic models were developed to evaluate different co-firing technologies as well as the configurations of these technologies. The models were developed to study 60 different scenarios involving various biomass feedstocks (wood chips, wheat straw, and forest residues) co-fired either with coal in a 500 MW subcritical pulverized coal (PC) plant or with natural gas in a 500 MW natural gas combined cycle (NGCC) plant to determine their technical potential and costs, as well as to determine environmental benefits. The results obtained reveal that the fully paid-off coal-fired power plant co-fired with forest residues is the most attractive option, having levelized costs of electricity (LCOE) of $53.12–$54.50/MW h and CO2 abatement costs of $27.41–$31.15/tCO2. When whole forest chips are co-fired with coal in a fully paid-off plant, the LCOE and CO2 abatement costs range from $54.68 to $56.41/MW h and $35.60 to $41.78/tCO2, respectively. The LCOE and CO2 abatement costs for straw range from $54.62 to $57.35/MW h and $35.07 to $38.48/tCO2, respectively.
Original languageEnglish
Pages (from-to)433-449
Number of pages17
JournalApplied Energy
Volume169
Early online date22 Feb 2016
DOIs
Publication statusPublished - 1 May 2016

Keywords

  • biomass co-firing
  • coal
  • natural gas
  • GHG emission
  • power generation
  • techno-economic assessment

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