Economic analysis of municipal power generation from gasification of urban green wastes: case study of Fultondale, Alabama, USA

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N. Abdoulmoumine, A. Kulkarni, S. Adhikari, S. Taylor, and E. Loewenstein, “Economic analysis of municipal power generation from gasification of urban green wastes: case study of Fultondale, Alabama, USA,” Biofuels, Bioprod. Bioref., vol. 6, no. 5, pp. 521–533, Sep. 2012.

Type Journal Article
Author Nourredine Abdoulmoumine
Author Avanti Kulkarni
Author Sushil Adhikari
Author Steven Taylor
Author Edward Loewenstein
URL http://dx.doi.org/10.1002/bbb.1346
Volume 6
Issue 5
Pages 521-533
Publication Biofuels, Bioproducts and Biorefining
ISSN 1932-1031
Date September 1, 2012
Journal Abbr Biofuels, Bioprod. Bioref.
DOI 10.1002/bbb.1346
Abstract The economic viability of heat and power generation from biomass gasification is strongly influenced by the supply radius due to the low energy density of biomass relative to fossil fuels. Consequently, localized production of heat and electricity from biomass gasification is expected to play an eminent role in the future. In this study, an economic analysis was performed on a micro-scale heat and power generation plant using urban waste from the city of Fultondale in Alabama, USA. The plant economics of heat and power production from urban biomass waste collected in Fultondale were analyzed by using a modular economic model with drying, chipping, gasification, power generation, and grid connection modules. Three gasification systems – fluidized bed, downdraft and updraft – and three power generation systems – internal combustion, steam turbine, and gas turbine – were assessed resulting in nine plant configuration scenarios. The fluidized bed gasifier and internal combustion engine plant configuration resulted in the lowest cost of electricity at ¢14/kWh for a micro-scale installed capacity of 100kWe for a plant operating at 85% capacity with an annual green waste processing capacity of 1811 tons. The equipment and installation costs made up the largest contribution to the total capital investment whereas the operating labor and plant overhead make the largest contribution to the total annual production cost. Sensitivity analysis revealed that the plant capacity factor and the rate of return of investment had the strongest effect on the levelized cost of electricity under the best configuration.


KEYWORDS:

 

  • Developing countries
  • Economic analysis
  • Economic development
  • Greenhouse gases
  • Investment
  • Municipal power generation
  • Processing
  • Raw materials
  • Renewable energy
  • Urban green waste

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