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What is the Electric Output of a Cogeneration Project Worth?

[+] Author Affiliations
Alexandra C. de Kok, Jane P. Hill

Southern Company

Paper No. 2000-GT-0589, pp. V003T02A015; 8 pages
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7856-9
  • Copyright © 2000 by ASME


The economics of cogeneration depend on whose perspective is being considered. A retail electric customer is concerned with the degree to which electric purchases at regulated tariffs can be reduced. A public utility’s perspective includes where the unit would fit in the generation “stack,” how much the unit would operate, and the opportunity costs of operating the cogeneration unit as opposed to other available units. An independent power producer (IPP) has many of the same objectives as an electric utility. However, an IPP has no franchised service territory guaranteeing markets for electricity it produces, although an IPP escapes many issues associated with regulation.

Because of these different perspectives, a cogeneration project which is economic for one entity might not be for another. In addition, even if cogeneration is thought to be economic for all three, the optimal equipment selection and operating scenario can vary substantially among potential investors.

This paper discusses the factors which influence economic viability of cogeneration from the perspectives of different potential investors.

Copyright © 2000 by ASME



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