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Economic Evaluation of Energy-Saving Retrofit of Existing Hotels

Author

Listed:
  • Yu Wang

    (School of Architectural Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Ling Dong

    (School of Architecture, Nanjing Tech University, Nanjing 211816, China)

  • Hongxian Li

    (School of Architecture and Built Environment, Deakin University, Geelong 3220, Australia)

Abstract

With the improvement of China’s economic strength, the energy consumption of public buildings is continually increasing, notably for hotels. The energy consumptin of a hotel accounts for more than 15% of its revenue, and the average energy consumption per floor area is more than 10 times that of urban residents. Therefore, the energy-saving retrofit of existing hotels is imperative. This study investigates the economic evaluation methods for existing hotel retrofit projects, and constructs an economic evaluation model using economic evaluation and cost-effectiveness ratio as the base. The energy-saving retrofit measures of 15 existing hotels in Jiangsu Province, China, are used as a case study to demonstrate the research framework. The results indicate that the heating, ventilation and air conditioning (HVAC) system, monitoring system, lighting system, domestic hot water system, and building envelope system are the five energy-saving retrofit technical measures with the highest application ratio. The average dynamic investment payback period of hotels in Jiangsu Province is 2.96 years, which meets the requirement of no more than 10 years specified in the energy-saving building standard. The cost-effectiveness ratio of different technologies differs significantly. Lighting and kitchen systems have the highest energy-saving efficiency, followed by monitoring systems, while HVAC and domestic hot water systems have the lowest. The research presented in this paper contributes to the economic evaluation of the energy-saving retrofit of hotels.

Suggested Citation

  • Yu Wang & Ling Dong & Hongxian Li, 2022. "Economic Evaluation of Energy-Saving Retrofit of Existing Hotels," Energies, MDPI, vol. 15(3), pages 1-19, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:757-:d:729617
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    References listed on IDEAS

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    1. Yang, Liu & Yan, Haiyan & Lam, Joseph C., 2014. "Thermal comfort and building energy consumption implications – A review," Applied Energy, Elsevier, vol. 115(C), pages 164-173.
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    Cited by:

    1. Xiaomiao Liao & Wanjiang Wang & Yihuan Zhou, 2023. "Investigating the Energy-Saving Effectiveness of Envelope Retrofits and Photovoltaic Systems: A Case Study of a Hotel in Urumqi," Sustainability, MDPI, vol. 15(13), pages 1-22, June.

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