A multi-stage optimal renewal planning ofan energy supply system foran office building from an economic viewpoint

Shu Yoshida, Koichi Ito, Yoshiharu Amano, Keigo Matsuo, Takumi Hashizume, Daniel Favrat, François Maréchal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A multi-stage optimal renewal planning problem for the energy supply system is studied by evaluating the long-term economics based on the annualized cost method. This problem is mathematically expressed as a mixed integer-linear programming formula, and a numerical study is carried out for an office building using the GAMS/CPLEX solver. Decision variables are the renewal year and the system's configuration at each of the renewal multi-stages together with the system's operational strategy for hourly changing energy demands. By taking the deterioration of the existing equipment of the system into account, the renewal system is assumed to be composed by adding the same and new types of equipment with technologically improved performance. The present planning year is set as 10 years after the system's initial construction, and the evaluation period is assumed to be 20 years from present, with the system renewed twice during this period. The main results are as follows: From the economic standpoint, the optimal first and second renewal years are the 10th and 22nd years after the system's initial construction. Comparing this optimal solution with the reference renewal plan, which renews the system using the same configuration only once, 15 years after the initial construction, the average annual total cost can be reduced 4.89 %.

Original languageEnglish
Title of host publicationFuel Cell and Internal Combustion Engines
PublisherAabo Akademi University
Pages301-308
Number of pages8
ISBN (Print)9781456303204
Publication statusPublished - 2010 Jan 1
Event23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - Lausanne, Switzerland
Duration: 2010 Jun 142010 Jun 17

Publication series

NameProceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Volume5

Conference

Conference23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
CountrySwitzerland
CityLausanne
Period10/6/1410/6/17

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Keywords

  • Energy supply system
  • Multi-stage optimization
  • Office building
  • Renewal planning

ASJC Scopus subject areas

  • Energy(all)
  • Environmental Science(all)

Cite this

Yoshida, S., Ito, K., Amano, Y., Matsuo, K., Hashizume, T., Favrat, D., & Maréchal, F. (2010). A multi-stage optimal renewal planning ofan energy supply system foran office building from an economic viewpoint. In Fuel Cell and Internal Combustion Engines (pp. 301-308). (Proceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010; Vol. 5). Aabo Akademi University.