Economic Analysis of Wet Waste-to-Energy Resources in the United States

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34 Scopus Citations

Abstract

Waste-to-energy (WTE) technologies provide opportunities to use waste materials beneficially in producing power, transportation fuels, and chemicals. Using a suite of economic models, this study estimates prices of four WTE resources: food waste; fats, oils, and greases (FOG); animal manure; and sewage sludge. Some of these materials are commoditized (e.g. FOG) thus their price is determined by market demand. For the materials regarded as waste, the study relates price to the avoided cost of disposal through waste management alternatives such as landfilling. This study finds that significant amounts of these feedstocks could be available at negative prices, meaning that a potential bioenergy facility could receive these materials for free or be paid to accept them in some locations. It is estimated that about 61% of sewage sludge, 27% of manure, and 7% of food waste may be available at negative prices. These negative price feedstocks are not uniformly distributed and are most likely to occur in areas with organic waste disposal bans, high population densities, and high landfill tipping fees. This study intends to open an initial discussion into how stakeholders view and value these materials, and how this view is evolving as their potential as WTE feedstocks is realized.

Original languageAmerican English
Pages (from-to)224-234
Number of pages11
JournalEnergy
Volume176
DOIs
StatePublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

NREL Publication Number

  • NREL/JA-6A20-72110

Keywords

  • And greases
  • Animal manure
  • Bioenergy
  • Biofuels
  • Biopower
  • Bioproducts
  • Economics
  • Fats
  • Feedstock price
  • Food waste
  • Oil
  • Supply curve
  • Waste resources
  • Waste-to-energy
  • Wastewater sludge
  • WTE resource price

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