Energy Recovery Options: What Is Their True Value?
A number of energy recovery options are available to publicly owned treatment works (POTWs). The attractiveness of energy recovery options has historically been evaluated based on comparison of the cost of treatment system vs. the avoided cost of purchased energy. However, the development of new environmental commodities and markets combined with the desire to use energy recovery projects to help meet the utility's and municipality's goals of reducing greenhouse gas (GHG) emissions has complicated the evaluation of the actual project value. This paper compares two energy recovery options — on-site power generation and biogas cleaning and pipeline injection — to show how regional variations in the costs of purchased energy purchase costs and environmental commodity values can influence the net value of the project.
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Document Type: Research Article
Publication date: 2010-01-01
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